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Keyword: cygnus

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  • Astronomy Picture of the Day -- Colorful Star Clouds in Cygnus

    04/22/2015 9:55:00 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | April 22, 2015 | (see photo credit)
    Explanation: Stars can form in colorful surroundings. Featured here is a star forming region rich in glowing gas and dark dust toward the constellation of the Swan (Cygnus), near the bright star Sadr. This region, which spans about 50 light years, is part of the Gamma Cygni nebula which lies about 1,800 light years distant. Toward the right of the image is Barnard 344, a dark and twisted dust cloud rich in cool molecular gas. A dramatic wall of dust and red-glowing hydrogen gas forms a line down the picture center. While the glowing red gas is indicative of small...
  • Orbital Sciences selects ULAís Atlas V to launch Next Cygnus Cargo Ship to Station

    12/10/2014 1:30:30 PM PST · by BenLurkin · 3 replies
    Following the catastrophic Oct. 28 failure of Orbital Sciences Corporation Antares rocket on a critical resupply mission to the space station for NASA, the company is seeking to quickly make up the loss to NASA by announcing the selection of the venerable Atlas V rocket built by United Launch Alliance to launch Orbitalís next Cygnus cargo ship to the orbital science lab.
  • Astronomy Picture of the Day -- LDN 988: Dark Nebula in Cygnus

    11/23/2014 11:11:15 AM PST · by SunkenCiv · 2 replies
    NASA ^ | November 20, 2014 | (see photo credit)
    Explanation: Obscuring the rich starfields of northern Cygnus, dark nebula LDN 988 lies near the center of this cosmic skyscape. Composed with telescope and camera, the scene is some 2 degrees across. That corresponds to 70 light-years at the estimated 2,000 light-year distance of LDN 988. Stars are forming within LDN 988, part of a larger complex of dusty molecular clouds along the plane of our Milky Way galaxy sometimes called the Northern Coalsack. In fact, nebulosities associated with young stars abound in the region, including variable star V1331 Cygni shown in the inset. At the tip of a long...
  • Astronomy Picture of the Day -- The Tulip Nebula

    11/15/2014 3:06:21 PM PST · by SunkenCiv · 2 replies
    NASA ^ | November 15, 2014 | (see photo credit)
    Explanation: Framing a bright emission region this telescopic view looks out along the plane of our Milky Way Galaxy toward the nebula rich constellation Cygnus the Swan. Popularly called the Tulip Nebula the glowing cloud of interstellar gas and dust is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101. About 8,000 light-years distant and 70 light-years across the complex and beautiful nebula blossoms at the center of this composite image. Red, green, and blue hues map emission from ionized sulfur, hydrogen, and oxygen atoms. Ultraviolet radiation from young, energetic stars at the edge of the Cygnus...
  • Elon Musk called the Antares rocket a 'joke' 2 years before it exploded

    10/29/2014 9:10:49 PM PDT · by Jack Hydrazine · 43 replies
    Mashable.com ^ | 28OCT2014 | Amanda Wills
    An Orbital Sciences rocket operating under a NASA contract exploded shortly after launch on Tuesday evening, much to everyone's surprise ó except, perhaps, Elon Musk. Musk, the CEO of SpaceX, trashed Orbital Sciences for using outdated Russian engines during a 2012 Wired interview: "One of our competitors, Orbital Sciences, has a contract to resupply the International Space Station, and their rocket honestly sounds like the punch line to a joke. It uses Russian rocket engines that were made in the í60s. I donít mean their design is from the í60sóI mean they start with engines that were literally made in...
  • NASA rocket explodes during launch at Wallops Island

    10/28/2014 3:31:06 PM PDT · by Perdogg · 116 replies
    A space station deliver rocket scheduled launch Tuesday evening exploded and crashed as it took off from Wallops Island.
  • Antares rocket explodes on lifetoff

    10/28/2014 4:41:34 PM PDT · by CivilWarBrewing · 62 replies
    YouTube ^ | October 28, 2014 | Brad Panovich
    The video says it all.
  • Unmanned NASA Antares rocket explodes after liftoff

    10/28/2014 7:16:17 PM PDT · by SeekAndFind · 43 replies
    FOX News ^ | 10/28/2014
    An unmanned cargo rocket bound for the International Space Station exploded Tuesday over a launchpad in Virginia. No injuries were reported following the first catastrophic launch in NASA's commercial spaceflight effort. The accident at Orbital Sciences Corp.'s launch complex at Wallops Island was sure to draw criticism over the space agency's growing reliance on private U.S. companies in this post-shuttle effort. NASA is paying billions of dollars to Orbital Sciences and the SpaceX company to make station deliveries, and it's counting on SpaceX and Boeing to start flying U.S. astronauts to the orbiting lab as early as 2017. NASA spokesman...
  • NASA, we have a problem! Unmanned cargo rocket explodes

    10/29/2014 4:59:51 AM PDT · by yldstrk · 57 replies
    Mail online ^ | October 29, 2014 | Snejana Farborv and Mark Prigg
    A Nasa rocket due to be visible across the East Coast on its way to the International Space Station has blown up on the launchpad. The rocket exploded six seconds after lift-off from the Mid-Atlantic Regional Spaceport on Wallops Island in Virginia. Engineers said there were no problems reported before the launch, and say they have 'no early indications' of what went wrong. 'A mishap has occurred. we have lost the vehicle,' controllers said seconds after blast off.
  • Cygnus Rocket blows Up After Launch

    10/28/2014 3:25:17 PM PDT · by hoagy62 · 35 replies
    10/28/14 | Hoagy62
    The Cygnus space cargo craft atop the Antares rocket exploded just after launch. The Rocket lifted off, gained about 100 feet, there was an explosion, then the rocket fell back down and exploded on the pad at Wallops Island.
  • Astronomy Picture of the Day -- Cocoon Nebula Wide Field

    09/20/2014 12:30:18 PM PDT · by SunkenCiv · 1 replies
    NASA ^ | September 18, 2014 | (see photo credit)
    Explanation: In this crowded starfield covering over 2 degrees within the high flying constellation Cygnus, the eye is drawn to the Cocoon Nebula. A compact star forming region, the cosmic Cocoon punctuates a long trail of obscuring interstellar dust clouds. Cataloged as IC 5146, the nebula is nearly 15 light-years wide, located some 4,000 light years away. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by the young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula...
  • Astronomy Picture of the Day -- Along the Cygnus Wall

    07/03/2014 3:59:35 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | July 03, 2014 | (see photo credit)
    Explanation: The prominent ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinctive shape popularly called The North America Nebula, the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up maps emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the region's young, hot, massive stars, the dark...
  • Astronomy Picture of the Day -- Along the Western Veil

    04/04/2014 3:43:51 AM PDT · by SunkenCiv · 6 replies
    NASA ^ | April 04, 2014 | (see photo credit)
    Explanation: Delicate in appearance, these filaments of shocked, glowing gas, draped in planet Earth's sky toward the constellation of Cygnus, make up the western part of the Veil Nebula. The Veil Nebula itself is a large supernova remnant, an expanding cloud born of the death explosion of a massive star. Light from the original supernova explosion likely reached Earth over 5,000 years ago. Blasted out in the cataclysmic event, the interstellar shock wave plows through space sweeping up and exciting interstellar material. The glowing filaments are really more like long ripples in a sheet seen almost edge on, remarkably well...
  • Commercial [space] cargo mission launched from Virginia

    01/10/2014 8:57:41 AM PST · by Pyro7480 · 7 replies
    Spaceflight Now (and CBS News) ^ | 01/09/2014 | William Harwood
    ...[A]n Orbital Sciences Corp. Antares rocket carrying a commercially developed cargo ship blasted off Thursday and climbed into orbit, kicking off the company's first operational flight to deliver supplies and equipment to the International Space Station.... The two-stage 130-foot-tall Antares rocket, equipped with modified first-stage engines left over from the Soviet moon program, roared to life at 1:07:05 p.m. EST (GMT-5) and quickly lifted off from the Mid-Atlantic Regional Spaceport, climbing away atop a torrent of fiery exhaust as Earth's rotation carried the pad into the plane of the space station's orbit. Accelerating smoothly as it consumed its first stage...
  • Astronomy Picture of the Day -- A Spectre in the Eastern Veil

    10/30/2013 3:19:24 AM PDT · by SunkenCiv · 11 replies
    NASA ^ | October 30, 2013 | (see photo credit)
    Explanation: Frightening forms and scary faces are a mark of the Halloween season. They also haunt this cosmic close-up of the eastern Veil Nebula. The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape covering nearly 3 degrees on the sky in the constellation Cygnus, this portion of the eastern Veil spans only 1/2 degree, about the apparent size of the Moon. That translates to 12 light-years at the Veil's reassuring estimated distance of 1,400 light-years from planet Earth. In the...
  • Cygnus Commercial Cargo Craft Completes Historic First Flight to Space Station

    10/22/2013 9:01:03 AM PDT · by BenLurkin · 2 replies
    universetoday.com ^ | October 22, 2013 | Ken Kremer on
    Commercial space took another major leap forward this morning, Oct 22., when the privately developed Cygnus cargo vehicle undocked from the International Space Station on its historic maiden flight and successfully completed a highly productive month long stay during its demonstration mission Ė mostly amidst the US government shutdown. The Cygnus was maneuvered about 10 meters (30 feet) away from the station and held in the steady grip of the stations fully extended robotic arm when astronauts Karen Nyberg and Luca Parmitano unlatched the arm and released the ship into free space at 7:31 a.m. EDT today Ė signifying an...
  • Cygnus spacecraft's arrival at space station delayed by incoming crew

    09/24/2013 2:30:17 PM PDT · by BenLurkin · 5 replies
    NBC ^ | Sep. 23, 2013 at 1:07 PM ET | Miriam Kramer, Space.com
    "This new schedule will allow the Orbital operations team to carefully plan and be well-rested before restarting the critical final approach to the space station," Frank Culbertson, Orbital's executive vice president and general manager of its advanced programs group, said in a statement. "Meanwhile, Cygnus has all the resources needed to remain in orbit for an extended period of time." Orbital's Cygnus spacecraft team has now tested software to fix the software glitch that prevented the attempted rendezvous with the space station on Sunday. Because of extra time needed for that troubleshooting, as well as the impending Soyuz launch and...
  • Antares/Cygnus LIVE LAUNCH THREAD, 18SEP2013/1050 EDT (1450 GMT), From Wallops Island

    09/18/2013 4:39:29 AM PDT · by Jack Hydrazine · 4 replies
    SpaceFlightNow.com ^ | 18SEP2013 | N/A
    Rocket: Antares Payload: Cygnus Launch date: September 18, 2013 Launch time: 10:50 a.m. EDT/7:50 a.m. PDT (1450 GMT) Launch window: 15 minutes Launch site: Pad 0A, Mid-Atlantic Regional Spaceport, Wallops Islands, VA ISS capture: Sept 22 @ 1117 GMT ISS departure: TBD 0745 GMT (3:45 a.m. EDT) The countdown began on time to begin final preps for this morning's 10:50 a.m. EDT blastoff of the 13-story Antares rocket from the Mid-Atlantic Regional Spaceport at NASA's Wallops Flight Facility in Virginia. Follow activities with this countdowntimeline. The mission will be the second launch of the Orbital Sciences Antares rocket after a...
  • Astronomy Picture of the Day -- IRAS 20324: Evaporating Protostar

    09/04/2013 4:04:22 PM PDT · by SunkenCiv · 12 replies
    NASA ^ | September 04, 2013 | (see photo credit)
    Explanation: Will this caterpillar-shaped interstellar cloud one day evolve into a butterfly-shaped nebula? No one is sure. What is sure is that IRAS 20324+4057, on the inside, is contracting to form a new star. On the outside, however, energetic winds are blowing and energetic light is eroding away much of the gas and dust that might have been used to form the star. Therefore, no one is sure what mass the resulting star will have, and, therefore, no one knows the fate of this star. Were the winds and light to whittle the protostar down near the mass of the...
  • Astronomy Picture of the Day -- North America and the Pelican

    09/03/2013 4:28:42 PM PDT · by SunkenCiv · 7 replies
    NASA ^ | September 03, 2013 | (see photo credit)
    Explanation: Here lie familiar shapes in unfamiliar locations. On the left is an emission nebula cataloged as NGC 7000, famous partly because it resembles our fair planet's continent of North America. The emission region to the right of the North America Nebula is IC 5070, also known for its suggestive outlines as the Pelican Nebula. Separated by a dark cloud of obscuring dust, the two bright nebulae are about 1,500 light-years away. At that distance, the 4 degree wide field of view spans 100 light-years. This spectacular cosmic portrait combines narrow band images to highlight bright ionization fronts with fine...
  • Astronomy Picture of the Day -- Bright Planetary Nebula NGC 7027 from Hubble

    08/26/2013 3:59:07 AM PDT · by SunkenCiv · 8 replies
    NASA ^ | August 26, 2013 | (see photo credit)
    Explanation: It is one of the brightest planetary nebulae on the sky -- what should it be named? First discovered in 1878, nebula NGC 7027 can be seen toward the constellation of the Swan (Cygnus) with a standard backyard telescope. Partly because it appears there as only an indistinct spot, it is rarely referred to with a moniker. When imaged with the Earth-orbiting Hubble Space Telescope, however, great details are revealed. Studying Hubble images of NGC 7027 have led to the understanding that it is a planetary nebula that began expanding about 600 years ago, and that the cloud of...
  • Astronomy Picture of the Day -- IC 5067 in the Pelican Nebula

    08/22/2013 7:49:40 PM PDT · by SunkenCiv · 12 replies
    NASA ^ | August 22, 2013 | (see photo credit)
    Explanation: The prominent ridge of emission featured in this dramatic skyscape is cataloged as IC 5067. Part of a larger emission nebula with a distinctive shape, popularly called The Pelican Nebula, the ridge spans about 10 light-years following the curve of the cosmic pelican's head and neck. This false color view also translates the pervasive glow of narrow emission lines from atoms in the nebula to a color palette made popular in Hubble Space Telescope images of star forming regions. Fantastic, dark shapes inhabiting the 1/2 degree wide field are clouds of cool gas and dust sculpted by the winds...
  • Gobekli Tepe Constellations

    08/04/2013 6:12:23 PM PDT · by Renfield · 22 replies
    The first interesting form is the scorpion, which might first be thought to represent is known as Scorpius, but this does not appear to be the case.¬† This is due to the presence of the three birds to the middle right (A, B, C), these three most clearly correspond to the ‚ÄúSummer Triangle‚ÄĚ stars, the three birds, one represented by each star: Cygnus, Aquila (aka Vultur volans), and Vultur cadens (Lyra).¬† The shape of the Aquila constellations holds the same general appearance as bird A, the angle of the Cygnus stars matches the shape of the body of bird B,...
  • Astronomy Picture of the Day -- Supergiant Star Gamma Cygni

    07/09/2013 2:31:21 AM PDT · by SunkenCiv · 7 replies
    NASA ^ | July 09, 2013 | (see photo credit)
    Explanation: Supergiant star Gamma Cygni lies at the center of the Northern Cross, a famous asterism in the constellation of the Swan (Cygnus). Known by the proper name Sadr, the bright star also lies at the center of this gorgeous skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans over 3 degrees (six Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Left of Gamma Cygni and shaped like two glowing cosmic wings divided by a long...
  • Astronomy Picture of the Day -- NGC 6960: The Witch's Broom Nebula

    05/28/2013 9:16:27 PM PDT · by SunkenCiv · 3 replies
    NASA ^ | May 29, 2013 | (see photo credit)
    Explanation: Ten thousand years ago, before the dawn of recorded human history, a new light would have suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was from a supernova, or exploding star, and record the expanding debris cloud as the Veil Nebula, a supernova remnant. This sharp telescopic view is centered on a western segment of the Veil Nebula cataloged as NGC 6960 but less formally known as the Witch's Broom Nebula. Blasted out in the cataclysmic explosion, the interstellar shock wave plows through space sweeping up and exciting interstellar...
  • Astronomy Picture of the Day -- Comet of the North

    04/05/2013 3:58:40 AM PDT · by SunkenCiv · 13 replies
    NASA ^ | April 05, 2013 | (see photo credit)
    Explanation: It looks like a double comet, but Comet PanSTARRS (C/2011 L4) is just offering skygazers a Messier moment. Outward bound and fading in this starry scene, the well-photographed comet is remarkably similar in brightness to M31, the Andromeda Galaxy. Tracking through northern skies just below the galaxy, the comet was captured as local midnight approached on April 3. Both comet and galaxy were visible to the eye and are immersed in the faint glow of northern lights as our own Milky Way galaxy arcs over a snowy field near Tšnndalen, Sweden. Double star cluster h and chi Persei can...
  • Astronomy Picture of the Day -- The Cygnus Wall of Star Formation

    01/22/2013 9:02:41 PM PST · by SunkenCiv · 20 replies
    NASA ^ | January 22, 2013 | (see photo credit)
    Explanation: The North America nebula on the sky can do what the North America continent on Earth cannot -- form stars. Specifically, in analogy to the Earth-confined continent, the bright part that appears as Central America and Mexico is actually a hot bed of gas, dust, and newly formed stars known as the Cygnus Wall. The above image shows the star forming wall lit and eroded by bright young stars, and partly hidden by the dark dust they have created. The part of the North America nebula (NGC 7000) shown spans about 15 light years and lies about 1,500 light...
  • Astronomy Picture of the Day -- Clouds in Cygnus

    11/30/2012 7:47:55 PM PST · by SunkenCiv · 5 replies
    NASA ^ | November 30, 2012 | (see photo credit)
    Explanation: Cosmic clouds of gas and dust drift across this magnificent mosaic covering a 12x12 degree field within the high flying constellation Cygnus. The collaborative skyscape, a combination of broad and narrow band image data presented in the Hubble palette, is anchored by bright, hot, supergiant star Deneb, below center near the left edge. Alpha star of Cygnus, Deneb, is the top of the Northern Cross asterism and is seen here next to the dark void known as the Northern Coal Sack. Below Deneb are the recognizable North America and Pelican nebulae (NGC 7000 and IC 5070). Another supergiant star,...
  • New Private Rocket Arrives at Virginia Launch Pad for Tests

    10/18/2012 1:24:12 PM PDT · by Jack Hydrazine · 11 replies
    Space.com ^ | 1OCT2012 | Space.com staff
    A private rocket NASA is counting on to make robotic cargo flights to the International Space Station achieved a key milestone today (Oct. 1), as its first stage rolled out to its Virginia launchpad for the first time. The first stage of Orbital Sciences' Antares rocket arrived today at its pad at the Mid-Atlantic Regional Spaceport (MARS), which is located at NASA's Wallops Flight Facility in eastern Virginia. The move marks the beginning of on-pad preparations for a series of important trials with Antares that will take place over the next few months, Orbital officials said. The company aims to...
  • Astronomy Picture of the Day -- Cocoon Nebula Wide Field

    09/12/2012 9:18:50 PM PDT · by SunkenCiv · 5 replies
    NASA ^ | September 13, 2012 | (see photo credit)
    Explanation: In this crowded starfield covering over 2 degrees within the high flying constellation Cygnus, the eye is drawn to the Cocoon Nebula. A compact star forming region, the cosmic Cocoon punctuates a long trail of obscuring interstellar dust clouds. Cataloged as IC 5146, the nebula is nearly 15 light-years wide, located some 4,000 light years away. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by the young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula...
  • Astronomers detect 'Tatooine planet'

    07/14/2005 1:07:16 PM PDT · by presidio9 · 41 replies · 1,252+ views
    Reuters ^ | Thursday, July 14, 2005
    Astronomers have detected a planet outside our solar system with not one, but three suns, a finding that challenges astronomers' theories of planetary formation. The planet, a gas giant slightly larger than Jupiter, orbits the main star of a triple-star system known as HD 188753 in the constellation Cygnus. The stellar trio and its planet are about 149 light-years from Earth and about as close to each other as our sun is to Saturn, U.S. scientists reported on Thursday in the current edition of the journal Nature. A light-year is about 6 trillion miles (10 trillion km), the distance light...
  • Astronomy Picture of the Day -- Pelican Nebula Close-up

    12/26/2011 6:22:05 PM PST · by SunkenCiv · 15 replies
    NASA ^ | November 26, 2011 | (see photo credit)
    Explanation: The prominent ridge of emission featured in this vivid skyscape is designated IC 5067. Part of a larger emission nebula with a distinctive shape, popularly called The Pelican Nebula, the ridge spans about 10 light-years and follows the curve of the cosmic pelican's head and neck. The Pelican Nebula close-up was constructed from narrowband data mapping emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. Fantastic, dark shapes inhabiting the view are clouds of cool gas and dust sculpted by energetic radiation from young, hot, massive stars. But stars are also forming within the dark...
  • Astronomy Picture of the Day -- Kepler 22b: An Almost Earth Orbiting an Almost Sun

    12/06/2011 11:17:56 PM PST · by SunkenCiv · 29 replies
    NASA ^ | December 07, 2011 | (see photo credit)
    Explanation: It's the closest match to Earth that has yet been found. Recently discovered planet Kepler 22b has therefore instantly become the best place to find life outside our Solar System. The planet's host star, Kepler 22, is actually slightly smaller and cooler than the Sun, and lies 600 light-years from Earth toward the constellation of the Swan (Cygnus). The planet, Kepler 22b, is over twice the radius of the Earth and orbits slightly closer in, but lies in the habitable zone where liquid water could exist on the surface. Pictured above is an artist's depiction of how Kepler 22b...
  • Astronomy Picture of the Day -- Pelican Nebula Close-up

    11/25/2011 9:42:48 PM PST · by SunkenCiv · 13 replies
    NASA ^ | November 26, 2011 | (see photo credit)
    Explanation: The prominent ridge of emission featured in this vivid skyscape is designated IC 5067. Part of a larger emission nebula with a distinctive shape, popularly called The Pelican Nebula, the ridge spans about 10 light-years and follows the curve of the cosmic pelican's head and neck. The Pelican Nebula close-up was constructed from narrowband data mapping emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. Fantastic, dark shapes inhabiting the view are clouds of cool gas and dust sculpted by energetic radiation from young, hot, massive stars. But stars are also forming within the dark...
  • Astronomy Picture of the Day -- Cocoon Nebula Wide Field

    09/29/2011 2:35:08 AM PDT · by SunkenCiv · 10 replies
    NASA ^ | September 29, 2011 | (see photo credit)
    Explanation: In this crowded starfield spanning some 3 degrees within the high flying constellation Cygnus, the eye is drawn to the Cocoon Nebula. A compact star forming region, the cosmic Cocoon punctuates a long trail of obscuring interstellar dust clouds. Cataloged as IC 5146, the nebula is nearly 15 light-years wide, located some 4,000 light years away. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by the young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula...
  • The Cygnus Bubble - Natural or Artificial? (Have astronomers found a Dyson sphere?)

    02/04/2010 11:50:02 PM PST · by LibWhacker · 35 replies · 1,506+ views
    Cygnus bubble detail_4m Mayall NOAO (1) Is the solar-system sized bubble in the Consellation Cygnus a planetary nebulae or could it be an "AC" or astroengineering construction, also known as a Dyson sphere, named after Freeman Dyson of the Princeton Institute for Advanced Study who proposed the theory? Dyson's thought experiment suggested that in our search for advanced extraterrrestrial civilizations that Instead of radio signals we should look for spheres, which are artificial mega structures that enclose the orbit of a star, fabricated from the material of that solar system. The key is to distinguish a Dyson sphere from...
  • Astronomy Picture of the Day 03-31-04

    03/31/2004 4:50:36 AM PST · by petuniasevan · 5 replies · 239+ views
    NASA ^ | 03-31-04 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 March 31 M39: Open Cluster in Cygnus Credit & Copyright: Heidi Schweiker, WIYN, NOAO, AURA, NSF Explanation: Lying just at the limit of human perception is a picturesque starfield containing one of the larger open clusters on the northern sky. Spanning an angle larger than the Moon, M39's relatively few stars lie only about 800 light years distant toward the constellation of Cygnus. The above picture of...
  • Astronomy Picture of the Day 10-23-03

    10/22/2003 10:06:46 PM PDT · by petuniasevan · 9 replies · 180+ views
    NASA ^ | 10-23-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 October 23 Cygnus Nebulosities Credit & Copyright: Steve Mandel, Galaxy Images Explanation: Looking toward the constellation Cygnus, a stunning and complex region of nebulae strewn along the plane of our Milky Way galaxy is revealed in this unique wide-angle sky view. Recorded with a filter designed to transmit light emitted by hydrogen atoms, the image emphasizes cosmic gas clouds in a 34 by 23 degree field centered...
  • Astronomy Picture of the Day 6-12-03

    06/12/2003 5:09:07 AM PDT · by petuniasevan · 5 replies · 262+ views
    NASA ^ | 6-12-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 June 12 Cyg X-1: Can Black Holes Form in the Dark? Credit: I. F. Mirabel and I. Rodrigues (IAFE, SAp/CEA) Explanation: The formation of a black hole from the collapsing core of a massive star is thought to be heralded by a spectacular supernova explosion. Such an extremely energetic collapse is also a leading explanation for the mysterious cosmic gamma-ray bursts. But researchers now suggest that the...
  • Astronomy Picture of the Day 2-04-03

    02/04/2003 5:14:51 AM PST · by petuniasevan · 9 replies · 270+ views
    NASA ^ | 2-04-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 February 4 Wisps of the Veil Nebula Credit & Copyright: Jerry Lodriguss (Astropix.com) Explanation: These wisps of gas are all that remain visible of a Milky Way star. Many thousands of years ago that star exploded in a supernova leaving the Veil Nebula, pictured above. At the time, the expanding cloud was likely as bright as a crescent Moon toward the constellation of Cygnus, visible for weeks...
  • Astronomy Picture of the Day 1-18-03

    01/18/2003 6:31:51 AM PST · by petuniasevan · 10 replies · 207+ views
    NASA ^ | 1-18-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 January 18 Filaments in the Cygnus LoopCredit: William P. Blair and Ravi Sankrit (Johns Hopkins University), NASA Explanation: Subtle and delicate in appearance, these are filaments of shocked interstellar gas -- part of the expanding blast wave from a violent stellar explosion. Recorded in November 1997 with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope, the picture is a closeup of a...
  • Astronomy Picture of the Day 1-01-03

    12/31/2002 10:55:13 PM PST · by petuniasevan · 12 replies · 378+ views
    NASA ^ | 1-01-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 January 1 NGC 6960: The Witch's Broom Nebula Credit & Copyight: Loke Kun Tan (StarryScapes) Explanation: Ten thousand years ago, before the dawn of recorded human history, a new light must suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was an exploding star and record the colorful expanding cloud as the Veil Nebula. Pictured above is the...
  • Astronomy Picture of the Day 10-14-02

    10/13/2002 10:41:13 PM PDT · by petuniasevan · 3 replies · 263+ views
    NASA ^ | 10-14-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 October 14 IC 5146: The Cocoon Nebula Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT Explanation: How did this nebula get created? The Cocoon Nebula, cataloged as IC 5146, is a strikingly beautiful nebula located about 4,000 light years away toward the constellation of Cygnus. Inside the Cocoon is a newly developing open cluster of stars. Like other stellar nurseries, the Cocoon Nebula is, at the...
  • Astronomy Picture of the Day 10-05-02

    10/04/2002 9:49:46 PM PDT · by petuniasevan · 5 replies · 278+ views
    NASA ^ | 10-05-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 October 5 X-Ray Cygnus A Credit: A. Wilson & A. Young (UMD), P. Shopbell (Caltech), CXC, NASA(Inset Credit: NRAO) Explanation: Amazingly detailed, this false-color x-ray image is centered on the galaxy Cygnus A. Recorded by the orbiting Chandra Observatory, Cygnus A is seen here as a spectacular high energy x-ray source. But it is actually more famous at the low energy end of the electromagnetic spectrum as...
  • Astronomy Picture of the Day 8-29-02

    08/29/2002 1:30:31 PM PDT · by petuniasevan · 4 replies · 230+ views
    NASA ^ | 8-29-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 August 29 The Pelican in the Swan Credit & Copyright: Robert Gendler Explanation: The Pelican Nebula, also known as IC 5070, lies about 2,000 light-years away in the high and far-off constellation of Cygnus, the Swan. This picture spans a portion of the magnificent nebula about 30 light-years wide. Fittingly, this cosmic pelican is found just off the east "coast" of the North America Nebula, another surprisingly...
  • Astronomy Picture of the Day 8-25-02

    08/24/2002 10:33:25 PM PDT · by petuniasevan · 9 replies · 230+ views
    NASA ^ | 8-25-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 August 25 Nebula Nova Cygni Turns On Credit: Peter Garnavich (Notre Dame), 1.2-m Telescope, Whipple Observatory Explanation: Old photographs show no evidence of the above nebula. In 1992, a white dwarf star toward the constellation of Cygnus blew off its outer layers in a classical nova explosion: an event called Nova Cygni 1992. Light flooded the local interstellar neighborhood, illuminated this existing gas cloud, excited the existing...