Free Republic 2nd Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $85,220
96%  
Woo hoo!! And now less than $2.8k to go!! We can do this. Thank you all very much! God bless.

Keyword: astronomy

Brevity: Headers | « Text »
  • Spectacular collision of suns will create new star in night sky in 2022

    01/06/2017 10:13:34 AM PST · by Red Badger · 26 replies
    www.telegraph.co.uk ^ | 6 January 2017 • 4:15pm | Sarah Knapton, Science Editor
    At the beginning of the 3rd century civil war raged in Britain as the Roman emperor Septimius Severus sought to quell unrest in the north. But unknown to the fighting cohorts and Caledonian tribes, high above their heads two stars were coming together in a huge cataclysmic explosion. Now 1800 years later the light from that collision will finally arrive on Earth creating a new star in the night sky - dubbed the ‘Boom Star - in an incredibly rare event which is usually only spotted through telescopes. Before their meeting the two stars were too dim to be seen...
  • Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters?

    07/03/2017 12:22:01 AM PDT · by LibWhacker · 18 replies
    Planetary Society ^ | 6/12/17 | Jason Davis
    Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters? About 66 million years ago, a 10-kilometer-wide hunk of rock smashed into Earth near what is now Mexico's Yucatán Peninsula.The impact created a global dust cloud that snuffed out the sunlight, leading to the demise of 80 percent of Earth's plants and animals—including most of the dinosaurs. A 200-kilometer-wide crater buried near the city of Chicxulub is all that's left. It's ground zero for one of the world's most notable extinction events.But throughout Earth's history, there have actually been five major extinction events. The largest of...
  • Asteroid strike made 'instant Himalayas'

    11/18/2016 9:20:25 PM PST · by MtnClimber · 30 replies
    BBC ^ | 18 Nov, 2916 | Jonathan Amos BBC Science Correspondent
    Scientists say they can now describe in detail how the asteroid that wiped out the dinosaurs produced its huge crater. The reconstruction of the event 66 million years ago was made possible by drilling into the remnant bowl and analysing its rocks. These show how the space impactor made the hard surface of the planet slosh back and forth like a fluid. At one stage, a mountain higher than Everest was thrown up before collapsing back into a smaller range of peaks. "And this all happens on the scale of minutes, which is quite amazing," Prof Joanna Morgan from Imperial...
  • Nope, our Temporary Moon Isn’t Space Junk, it’s an Asteroid

    10/20/2017 12:12:40 PM PDT · by BenLurkin · 9 replies
    universe today ^ | Matt Williams
    In April of 2016, astronomers became aware of a distant object that appeared to be orbiting the Sun, but was also passing close enough to Earth that it could be periodically viewed using the most powerful telescopes. Since then, there has been ample speculation as to what this “Temporary Moon” could be... ... “While HO3 is close to the Earth, its small size – possibly not larger than 100 feet – makes it challenging target to study. Our observations show that HO3 rotates once every 28 minutes and is made of materials similar to asteroids.” ... Reddy and his colleagues...
  • ‘Quasi’ Moon Discovered Orbiting Earth

    06/16/2016 10:52:20 AM PDT · by smokingfrog · 53 replies
    VOA news ^ | 6-16-16 | unattributed
    Astronomers have discovered a new “quasi” moon orbiting Earth. 2016 HO3, as the asteroid is called, is at least 40 meters across and could be larger, up to 100 meters, researchers say, but it’s too far from Earth to qualify as a true satellite or mini-moon. "Since 2016 HO3 loops around our planet, but never ventures very far away as we both go around the sun, we refer to it as a quasi-satellite of Earth," said Paul Chodas, manager of NASA's Center for Near-Earth Object (NEO) Studies at the Jet Propulsion Laboratory in Pasadena, California. "One other asteroid -- 2003...
  • The Earth and moon formed later than previously thought

    06/07/2010 5:29:41 PM PDT · by decimon · 114 replies · 95+ views
    University of Copenhagen ^ | Jun 7, 2010 | Unknown
    The Earth and Moon were created as the result of a giant collision between two planets the size of Mars and Venus. Until now it was thought to have happened when the solar system was 30 million years old or approx. 4,537 million years ago. But new research from the Niels Bohr Institute shows that the Earth and Moon must have formed much later – perhaps up to 150 million years after the formation of the solar system. The research results have been published in the scientific journal, Earth and Planetary Science Letters. "We have determined the ages of the...
  • Earth Must Have Another Moon, Say Astronomers

    12/22/2011 7:05:56 AM PST · by Lonesome in Massachussets · 44 replies
    Back in 2006, the Catalina Sky Survey in Arizona noticed that a mysterious body had begun orbiting the Earth. This object had a spectrum that was remarkably similar to the titanium white paint used on Saturn V rocket stages and, indeed, a number of rocket stages are known to orbit the Sun close to Earth. But this was not an object of ours. Instead, 2006 RH120, as it became known, turned out to be a tiny asteroid just a few metres across--a natural satellite like the Moon. It was captured by Earth's gravity in September 2006 and orbited us...
  • NASA says Mystery Object Orbits Earth

    09/20/2002 3:30:37 PM PDT · by Mark Felton · 45 replies · 549+ views
    NASA ^ | 9/20/02 | NASA
    Mystery Object Orbits Earth A puzzling object just discovered in orbit around Earth might be an Apollo rocket on a fantastic journey through the solar system. Listen to this story via streaming audio , a downloadable file , or get help . Sept. 20, 2002: Something odd is circling our planet. It's small, perhaps only 60-ft long, and rotates once every minute or so. Bill Yeung, an amateur astronomer in California, first spotted the 16th magnitude speck of light on Sept. 3rd in the constellation Pisces. He named it J002E3.Automated asteroid surveys scan the skies every few weeks, yet...
  • New 'Moon' Found Around Earth

    09/11/2002 11:35:35 AM PDT · by Cultural Jihad · 76 replies · 519+ views
    BBC ^ | September 11, 2002 | Dr David Whitehouse
    New 'moon' found around Earth There could be another one By Dr David Whitehouse BBC News Online science editor An amateur astronomer may have found another moon of the Earth. Experts say it may have only just arrived. Much uncertainty surrounds the mysterious object, designated J002E2. It could be a passing chunk of rock captured by the Earth's gravity, or it could be a discarded rocket casing coming back to our region of space. It was discovered by Bill Yeung from his observatory in Arizona and reported as a passing Near-Earth Object. It was soon realised however that far from...
  • Giant Waves Nearly Half a Million Miles Across Seen on the Sun for the First Time

    05/21/2018 9:44:47 PM PDT · by BenLurkin · 29 replies
    space.com ^ | May 21, 2018 06:24pm ET | Stephanie Pappas,
    "Solar Rossby waves are gigantic in size, with wavelengths comparable to the solar radius," study co-author Laurent Gizon, of the Max Planck Institute for Solar System Research, said in a statement. (The average radius of the sun is a whopping 432,450 miles, or 696,000 kilometers.) Even so, these waves move very slowly, with shallow troughs and peaks, so they aren't always easy to detect, especially amid the other swirls and disturbances on a body as lively as the sun. … Researchers from the Max Planck Institute for Solar System Research, the University of Göttingen (both in Germany), New York University...
  • China launch will prep for Moon landing

    05/21/2018 12:51:32 PM PDT · by Simon Green · 28 replies
    BBC ^ | 05/21/18
    China has launched a relay satellite to prepare for a lunar rover mission planned for later in the year. The Queqiao spacecraft will establish a communications link between Earth and the landing mission, which looks set to launch in the next six months. The satellite was launched at 22:28 BST on Sunday (05:28 local time) from Xichang launch centre in the country's south-west. It will settle in an orbit about 455,000 km (282,555 miles) from Earth. This orbit will also take it more than 60,000 km from the lunar farside, where China will aim to put down with a lander...
  • Tiny, Mars-bound satellite snaps its first image of Earth and the Moon

    05/20/2018 7:13:18 PM PDT · by ETL · 19 replies
    FoxNews.com/Science ^ | May 17, 2018 | Mike Wall, Space.com Senior Writer
    A tiny satellite on its way to Mars has opened its eyes and captured a view of home. One of NASA's two Mars Cube One (MarCO) cubesats, which launched toward the Red Planet along with the agency's InSight lander on May 5, took a photo on May 9 to help confirm that its high-gain antenna had deployed properly. The antenna is in the photo. And so are the moon and Earth, the latter of which appears as a pale blue dot, just as it did in a famous photo taken by NASA's Voyager 1 probe in 1990. ..." (snip) Despite...
  • It’s full of stars! NASA’s planet-hunting TESS probe sends back its first test image

    05/18/2018 8:01:22 PM PDT · by Simon Green · 21 replies
    Geekwire ^ | 05/18/18 | Alan Boyle
    One month after its launch, NASA’s Transiting Exoplanet Survey Satellite has sent back an initial test image that shows more than 200,000 stars in the southern sky. TESS’ image was taken by one of its cameras with a two-second exposure. The picture is centered on the constellation Centaurus, with the edge of the dark Coalsack Nebula at upper right and the star Beta Centauri prominent along the lower edge. The picture provides only a hint of what TESS will be seeing once it starts delivering science-quality images next month. When all four wide-field cameras are in operation, TESS’ images...
  • Here's the Weird Science Launching to the Space Station on Monday

    05/18/2018 6:37:52 PM PDT · by BenLurkin · 7 replies
    Space.com ^ | May 18, 2018 11:12am ET | Chelsea Gohd, Staff Writer |
    On Monday, a cargo delivery to the International Space Station will carry old-fashioned sextants, E. colibacteria and lasers that will create a temperature 10 billion times colder than the vacuum of space. … CAL is sending the space station an experimental physics package that holds an "ice chest"-like compartment filled with lasers and electronics; the interior will be able to reach a temperature10 billion times colder than the vacuum of space, according to a NASA statement. Within this instrument, the researchers will use laser cooling techniques and magnets to slow down atoms until they are almost entirely motionless. By studying...
  • How NASA’s Mission to Pluto Was Nearly LostThe inside story of the New Horizons probe.

    05/18/2018 6:47:08 PM PDT · by MtnClimber · 19 replies
    On the Saturday afternoon of July 4, 2015, NASA’s New Horizons Pluto mission leader Alan Stern was in his office near the project Mission Control Center, working, when his cell phone rang. He was aware of the Independence Day holiday but was much more focused on the fact that the date was “Pluto flyby minus 10 days.”... Glancing at his ringing phone, Alan was surprised to see the caller was Glen Fountain, the longtime project manager of New Horizons. He felt a chill because he knew that Glen was taking time off for the holiday, at his nearby home, before...
  • Astronomers find fastest-growing black hole known in space

    05/15/2018 1:58:52 PM PDT · by Red Badger · 28 replies
    phys.org ^ | May 15, 2018 | Australian National University
    A bright, supermassive black hole. Credit: NASA ______________________________________________________________________________ Astronomers at ANU have found the fastest-growing black hole known in the Universe, describing it as a monster that devours a mass equivalent to our sun every two days. The astronomers have looked back more than 12 billion years to the early dark ages of the Universe, when this supermassive black hole was estimated to be the size of about 20 billion suns with a one per cent growth rate every one million years. "This black hole is growing so rapidly that it's shining thousands of times more brightly than an...
  • By Jove: Jupiter at Opposition for 2018

    05/02/2018 7:26:11 AM PDT · by BenLurkin · 14 replies
    universetoday ^ | by David Dickinson
    That bright “star” is actually a planet, the king of them all as far as our Solar System is concerned: Jupiter. May also ushers in Jupiter observing season, as the planet reaches opposition on May 9th, rising in the east opposite to the setting Sun to the west. Jupiter now joins Venus in the dusk sky, ending the planetary drought plaguing many an evening star party. Shining a magnitude -2.5 near opposition, you can even pick Jupiter out against the deep blue daytime sky… if you know exactly where to look for it. The Moon visits Jupiter once every orbit,...
  • Alien World [Mars Meridiani Planum]

    04/30/2018 11:48:22 AM PDT · by Voption
    Behind the Black ^ | April 30, 2018 | Robert Zimmerman
    "Meridani Planum is located on the equator due east of the giant canyons of Valles Marineris. It is a subsection region inside Arabia Terra, the largest of the transition zones between the lower elevation vast plains of the northern hemisphere and the higher elevation crater southern highlands."
  • Where to Watch NASA's InSight Mars Lander Launch from the California Coast

    04/30/2018 7:23:53 PM PDT · by BenLurkin · 11 replies
    Space.com ^ | April 30, 2018 01:38pm ET | Elizabeth Howell,
    NASA has two official sites from which the public can watch the launch along with NASA/InSight mission team members. There are also are several informal sites where you can gather with local residents to see InSight launch. The agency warns people to be careful of fog and cold in all viewing areas. ...InSight's launch window May 5 through June 8, 2018,"....lasts for 2 hours, until about 6:05 a.m. PDT (9:05 a.m. EDT/1305 GMT). Lompoc City Airport will open its tarmac to the public no earlier than 2:30 a.m. PDT, with launch commentary starting at 3:30 a.m. PDT.... St. Mary's Episcopal...
  • Incoming!: NASA says 5 ‘close’ asteroid flybys will take place today

    04/29/2018 7:11:26 AM PDT · by BenLurkin · 10 replies
    RT ^ | 29 Apr, 2018 10:47
    The series of space rock flybys begins at 10:29 UTC Sunday as asteroid 2013 US3, travelling at a respectable 7.69 km/s (27,646 kph) with a diameter of between 160-360 meters whizzes past us. For comparison, the Eiffel Tower measures 324 meters from ground to tip. Next up are asteroids 2018 GO4 and 2018 GY1, which are expected to scream past us at 12:34 and 18:20 UTC respectively. Asteroid 2018 GO4 measures approximately 30-68 meters (between three and six school buses in diameter) and has a brisk pace of 8.57 km/s. Meanwhile, 2018 GY1, on the other hand, won’t be hanging...