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Keyword: astronomy

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  • Astronomers Find Mass Limit for Neutron Stars Before Collapsing Into Black Holes

    01/19/2018 1:38:43 PM PST · by Red Badger · 27 replies
    www.popularmechanics.com ^ | 01/19/2018 | By John Wenz
    These remaining cores of dead stars can only get so massive before they become black holes. _______________________________________________________________________________________________________________________________________ The subtle difference between when a massive dying star compresses into a core and when it collapses entirely may have been found. In a study published in Astrophysical Journal Letters, researchers at the Goethe University in Frankfurt say they’ve found the dividing line between compact objects called neutron stars and black holes. When a massive star reaches the end of its life, it goes out with an immense bang called a supernova. From there, one of two known things Can happen: it either...
  • Arecibo radar returns with asteroid phaethon images

    12/23/2017 8:15:02 AM PST · by BenLurkin · 13 replies
    phys.org ^ | December 22, 2017
    After several months of downtime after Hurricane Maria blew through, the Arecibo Observatory Planetary Radar has returned to normal operation, providing the highest-resolution images to date of near-Earth asteroid 3200 Phaethon during its Dec. 16 flyby of Earth. The radar images, which are subtle at the available resolution, reveal the asteroid is spheroidal in shape and has a large concavity at least several hundred meters in extent near the leading edge, and a conspicuous dark, circular feature near one of the poles. Arecibo's radar images of Phaethon have resolutions as fine as about 250 feet (75 meters) per pixel.
  • Three-mile-wide Asteroid 3200 Phaethon to skim Earth just before Christmas Read more:

    11/24/2017 6:01:48 AM PST · by BenLurkin · 24 replies
    A gigantic space rock called 3200 Phaethon is due to brush ‘quite close’ to our planet on December 17, Russian astronomers have revealed. This huge asteroid is thought to cause the beautiful Geminids meteor shower which will take place between December 13 and 14, causing hundreds of bright meteors to illuminate the night sky as they burn up in Earth’s atmosphere. But NASA has also described it as a ‘potentially hazardous asteroid whose path misses Earth’s orbit by only 2 million miles‘ – which is tiny in galactic terms. It’s about half the size of Chicxulub, the rock which wiped...
  • Tarrant College students leave class after professor's unusual behavior

    01/18/2018 9:39:23 AM PST · by DFG · 104 replies
    Fox4News (DFW) ^ | 01/17/2018 | FOX4News.com Staff
    Students attending a lecture at Tarrant County College were so frightened by their professor's behavior during a recent class that they had to leave the room. When TCC Adjunct Professor Daniel Mashburn walked into his Astronomy class Tuesday night, several students were alarmed by his behavior. Some thought it was a joke while others called police. Student April McLeod says her teacher got to class about 20 minutes late and turned off the lights and was wearing a ball cap, a toboggan, a scarf over his face and gloves. She says Mashburn never took any of it off even when...
  • Flash of Light and Shockwave in Detroit are

    01/16/2018 5:36:21 PM PST · by freedomson · 111 replies
    At about 8:20 pm Tuesday January 16, 2018 Did any of you Detroit freepers see that flash of light followed about two minutes later with a window rattling shockwave?
  • NASA experts point to Livingston County for potential meteorite discovery

    01/17/2018 9:36:12 PM PST · by BenLurkin · 12 replies
    The search for meteorites continues all over metro Detroit.  NASA experts point toward Livingston County to find them. Bill Cooke is the Meteoroid Environment Program Manager with NASA and he said the Doppler radar images show the meteorites from the meteor spotted on January 16 in Livingston County. “The meteorites should be just south of M-36 between Hamburg and Lakeland,” said Cooke. Cooke said Doppler is best way to track where they might be found. "Doppler weather radar is a very good indicator because, when it picks up meteorites, the meteorites are fairly close to the ground, they're only a couple...
  • Giant 'Potentially Hazardous' Asteroid Will Whiz By Earth So Close We Can See Inside It

    01/17/2018 9:22:59 PM PST · by BenLurkin · 49 replies
    Newsweek ^ | 1/17/18 at 5:43 PM
    On February 4, an asteroid called 2002 AJ129 is due to slip past Earth. It is between 1600 and 4000 feet across, according to NASA's Center for Near Earth Object Studies, but there's no chance it will make impact—NASA has calculated it will remain 2.6 million miles away. That still makes it what astronomers call a "potentially hazardous asteroid," thanks to its size being more than about 500 feet across and an orbital path that carries it within about 4,650,000 miles of Earth. But while they're confident we won't all go the way of the dinosaurs, scientists do want to keep an eye on the...
  • The moon is about to do something it hasn’t done in more than 150 years

    01/02/2018 10:43:52 PM PST · by Oshkalaboomboom · 9 replies
    Miami Herald ^ | Jan 02, 2018 | Alex Harris
    Call it whatever you like — a blue red moon, a purple moon, a blood moon — but the moon will be a special sight on Jan. 31. Three separate celestial events will occur simultaneously that night, resulting in what some are calling a super blue blood moon eclipse. The astronomical rarity hasn’t happened for more than 150 years, according to Space.com. A super moon, like the one visible on New Year’s Day, is the term for when a full moon is closest to the Earth in its orbit, appearing bigger and brighter than normal. Supermoon rises over Reno, Nevada...
  • Amateur Skywatchers Spot New Atmospheric Phenomenon

    04/25/2017 1:39:20 PM PDT · by LouieFisk · 29 replies
    smithsonian.com ^ | April 24, 2017 | Erin Blakemore
    When they weren’t calling the purple, ribbon-like light Steve, the Facebook group referred to it as a “proton arc,” notes ABC News. But when a Canadian physicist and astronomer who studies aurorae looked at the photos, he suspected something more was afoot—especially since proton aurorae, which happen when protons from solar winds hit Earth's magnetic field, are usually too dark to be visible.
  • Hubble Spots Auroras on Uranus

    04/11/2017 6:50:12 PM PDT · by LouieFisk · 48 replies
    NASA ^ | April 10, 2017 | NASA
    Ever since Voyager 2 beamed home spectacular images of the planets in the 1980s, planet-lovers have been hooked on auroras on other planets. Auroras are caused by streams of charged particles like electrons that come from various origins such as solar winds, the planetary ionosphere, and moon volcanism. They become caught in powerful magnetic fields and are channeled into the upper atmosphere, where their interactions with gas particles, such as oxygen or nitrogen, set off spectacular bursts of light.
  • Idaho Gets Official Recognition for Its Stellar Night Sky

    12/27/2017 6:27:39 AM PST · by C19fan · 29 replies
    Popular Mechanics ^ | December 26, 2017 | David Grossman
    In the Sawtooth Mountains of central Idaho, 1,416 square miles (3,668 square kilometers) of land has been named the country's first International Dark Sky Reserve by the International Dark-Sky Association (IDA), the leading organization that fights against the light pollution that slowly swallows our view of the universe.
  • Study: Martian Surface Water Was Absorbed by Planet’s Crust

    12/24/2017 7:12:32 PM PST · by BenLurkin · 28 replies
    sci-news ^ | 12/24/2017
    By modeling the reactions of water with the crusts of early Earth and Mars, they found that the Martian crust can hold more than twice the amount of water as Earth, effectively drying out the surface of Mars. The team’s findings suggest that almost 1,000 feet (300 m) of Martian surface water could have been absorbed into the planet’s crust and is now locked-up in microscopic mineral structures. “It would be very difficult to sustain life as we know it on Mars even if surface water existed on the planet for a couple million years,” the researchers said. .. “Our...
  • We Might Have Just Discovered 2 Dark Moons Hidden Near Uranus

    12/22/2017 6:11:50 AM PST · by Red Badger · 50 replies
    www.sciencealert.com ^ | 17 OCT 2016 | FIONA MACDONALD
    ================================================================================================================ Researchers have re-examined data captured by the Voyager 2 spacecraft back in 1986, and think they've found evidence of two never-before-seen moons hidden in the rings of Uranus. Uranus, the third largest planet in our Solar System, already has 27 moons that we know of - but these two new ones appear to orbit the planet more closely than any of its other natural satellites, and are causing wavy patterns in its closest rings. Although Saturn is the most famous ringed planet orbiting our Sun, it's not the only one, with the three other gas giants - Jupiter, Uranus,...
  • Haunted Again: Skull-Faced 'Halloween Asteroid' Returns in 2018

    12/21/2017 12:52:16 PM PST · by BenLurkin · 4 replies
    Space.com ^ | December 21, 2017 06:52am ET | Mike Wall, Senior Writer |
    Astronomers will soon get another look at the big, ghoulishly weird space rock that buzzed Earth on Halloween three years ago. The roughly 2,100-foot-wide (640 meters) Halloween asteroid 2015 TB145 gave Earth a close shave on Oct. 31, 2015, coming within just 300,000 miles (480,000 kilometers) of our planet. (For perspective, the moon orbits at an average distance of about 239,000 miles, or 384,600 km.) A Halloween flyby was quite appropriate, it turned out: Observations made at the time by a variety of instruments revealed that 2015 TB145 looks like an enormous skull, at least from some angles. ... The asteroid may...
  • Japanese startup lands $90 million to put a billboard on the moon — Video at site

    12/19/2017 11:30:28 AM PST · by Swordmaker · 30 replies
    Digital Trends ^ | December 18, 2017 2:48 pm | By Luke Dormehl
    “We’ve got a startup idea. We want $90 million to invest in projection technology for high tech billboards. On the moon.”At least, that is how we assume the pitch went from Japanese space startup iSpace Technologies Inc., which just announced the conclusion of its Series A round of venture funding. Its goal? To launch a spacecraft into lunar orbit by 2019, land on the moon the year after that, and then set up the necessary infrastructure for a moon-based advertising business. Heck, you can’t fault the company’s ambition!iSpace’s $90 million will cover two space flights in 2019 and 2020....
  • Asteroid that could’ve obliterated NYC skimmed past Earth – and NASA didn’t notice

    12/08/2017 9:25:30 AM PST · by Red Badger · 47 replies
    www.dailystar.co.uk ^ | 12/08/2017 | By Rachel O'Donoghue
    A MASSIVE asteroid that could have destroyed New York City skimmed past Earth – and NASA had no clue. The large space rock – dubbed 2017 VL2 – passed the planet on November 9 at an astonishing distance of just 73,000 miles, which is considered tiny in space terms. Space boffins think that if the rock measuring between 16 and 32 metres had hit, it could’ve wiped a major city such as New York off the map. The rock belongs to the Apollo group of asteroids and was first seen at ATLAS-MLO observatory in Hawaii a day later. It was...
  • Alien life? Bacteria ‘that had not been there’ found on ISS hull, Russian cosmonaut says

    11/28/2017 6:50:18 AM PST · by BenLurkin · 17 replies
    Living bacteria were found on the surface of the International Space Station (ISS), and they might have extraterrestrial origins, Russian cosmonaut Anton Shkaplerov said. The microorganisms will be studied further on Earth. Shkaplerov, an ISS expedition flight engineer who will take his third trip to the ISS in December as part of the Expedition 54 crew, said that scientists found living bacteria while they were taking samples from the surface of the station. Speaking to TASS, he said that the microorganisms might have come from outer space. ... However, traces of bacteria originating on Earth – from Madagascar – and...
  • Vatican Astronomer: Some Scientists Pretend They're Atheists for Credibility, but Many Attend Church

    11/25/2017 11:23:49 AM PST · by SeekAndFind · 25 replies
    Christian Post ^ | 11/25/2017 | Stoyan Zaimov
    A top Vatican astronomer has said that a number of public scientists claim to be atheists in order to appear credible, noting that a surprising number of scientists attend church. Brother Guy Consolmagno, director of the Vatican Observatory, who has spoken on a number of topics concerning science and faith, told Vancouver Sun in an interview earlier this week that many "public scientists" are insecure about their rank. "The scientists that you see on TV who are proclaimed atheists because they think it gives them credibility in science — which it doesn't — are turning off the nine-tenths of the...
  • Venus, Jupiter conjunction: The brightest planets to meet up in Monday morning sky

    11/13/2017 1:42:58 AM PST · by ETL · 28 replies
    AccuWeather.com ^ | November 12, 2017 | Brian Lada, AccuWeather meteorologist and staff writer
    Jupiter and Venus will pair up in the sky on Monday morning, shining brightly together shortly before sunrise. The two planets will appear so close together that they may look like they are just one bright star rather than two planets. This is the closest these two planets will appear all year, an astronomical event known as a conjunction. Venus and Jupiter may appear very close to each other in the morning sky, but they are actually more than 400 million miles away from each other. Venus and Jupiter will rise together about one hour before sunrise in the eastern...
  • Another “Impossible” Exoplanet | Space News

    11/09/2017 9:47:39 PM PST · by Windflier · 22 replies
    Thunderbolts.info ^ | 9 November 2017 | S. Schirott
    Recently, scientists reported in the monthly notices of the Royal Astronomical Society the discovery of a theory-shattering exoplanet — one of countless such discoveries in the last two decades. As reported on phys.org on October 31, the hot Jupiter “should not exist according to planet formation theory.” In this episode, we outline the fundamental differences between the standard model of planet and star formation versus that of the Electric Universe.