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Astronomy (General/Chat)

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  • Meteorites hit earth 17 times a day, but no damage has been done!

    02/26/2020 10:34:29 PM PST · by WebHankerchief22 · 12 replies
    Cosmos Magazine ^ | Not Posted | Richard A. Lovett
    Scientists say that meteors hit earth 17 times a day. However, we don't even notice because these meteors are either too small or hit in uninhabited areas in the world. The reason that damages are unlikely and almost never occur from these daily impacts is that most of the world is uninhabited and no one is near the impact location to experience or report the impact and its location. However, the impacts that are recorded are often added to a list for scientists and enthusiasts to study. For example, a website called asteroid collision location map is a source that...
  • New 'mini-moon' orbiting Earth for now, astronomers say

    02/26/2020 4:51:58 PM PST · by ransomnote · 30 replies
    nbcnews.com ^ | Feb. 26, 2020 | Denise Chow
    A visiting mini-moon is circling Earth, according to astronomers who discovered the cosmic squatter in our planet's orbit.The tiny asteroid, dubbed 2020 CD3, was spotted by astronomers in Tucson, Arizona, on Feb. 15. "BIG NEWS," Kacper Wierzchos, a researcher with the Catalina Sky Survey at the University of Arizona's Lunar and Planetary Lab, tweeted Tuesday. "Earth has a new temporarily captured object/Possible mini-moon called 2020 CD3. On the night of Feb. 15, my Catalina Sky Survey teammate Teddy Pruyne and I found a 20th magnitude object."Wierzchos said that the object measures about 6 feet to 11 feet across and that...
  • How Often do Meteorites Hit the Earth? More often that you think!

    02/22/2020 11:50:12 PM PST · by WebHankerchief22 · 18 replies
    Space.com ^ | August 10, 2016 | Samantha Mathewson
    Although major killer asteroids are extremely rare, minor asteroids called meteors often impact earth going unnoticed. Most of the time they burn up in the atmosphere. However, if they do not these smaller scale asteroids can weigh anywhere from 20 pounds to upwards of hundreds or thousands of pounds. Maybe even more! Fortunately, these smaller scale asteroids do not usually collide with highly populated areas and mainly impact the earths large swaths of uninhabited areas. Most of these collisions go unreported or unnoticed. However, reported collisions are usually added to a list. For example, a map simulation from an asteroid...
  • Phobos sample return mission enters development for 2024 launch

    02/21/2020 9:59:33 AM PST · by BenLurkin · 7 replies
    spaceflightnow ^ | 02/20/2020 | Stephen Clark
    Japans space agency has approved a robotic mission to retrieve a sample from the Martian moon Phobos for return to Earth to begin full development for a planned launch in 2024, officials said Thursday. The Martian Moon eXploration, or MMX, spacecraft will attempt to return the first specimens from Phobos for analysis in laboratories on Earth, where scientists hope to trace the origins of the Martian moons to determine whether they were asteroids captured by Mars, or if they formed out of rocky debris generated from an ancient impact on Mars. The Japan Aerospace Exploration Agency and other Japanese government...
  • New Exoplanet Search Strategy Claims First Discovery

    02/19/2020 1:22:16 PM PST · by LibWhacker · 5 replies
    Quanta Magazine ^ | 2/18/20 | Olena Shmahalo and Nola Taylor Redd
    By watching for a special kind of flare, astronomers have identified the fingerprints of an Earth-size planet orbiting a distant star.The planet orbits its host star, a dim M dwarf, just at the edge of the habitable zone the region where liquid water could exist. Jupiters moon Io the solar systems most volcanic world has inspired a new way to find distant exoplanets. As the moon orbits Jupiter, it tugs on the planets magnetic field, generating bright auroras in Jupiters atmosphere. Even if we couldnt see Io itself, the enormous auroras, pulsing to the beat of...
  • Astronomical Images of Nebulae and Galaxies to Jeremiah Clark's 'Prince of Denmark's March'

    02/19/2020 10:57:36 AM PST · by mairdie · 11 replies
    YouTube ^ | Febuary 19, 2020 | MVD
    Astronomical Images of Nebulae and Galaxies to Jeremiah Clark's 'Prince of Denmark's March,' a Trumpet Voluntary. I am awed by the vastness and the beauty of space. A trumpet voluntary conveys that awe perfectly.
  • SpaceX will fly space tourists on Crew Dragon for Space Adventures

    02/18/2020 11:34:16 AM PST · by BenLurkin · 7 replies
    Space.com ^ | 02/18/2020 | Tariq Malik
    Under the agreement, Space Adventures will use a SpaceX Falcon 9 rocket and Crew Dragon vehicle to fly up to four passengers to Earth orbit. The trip will not visit the International Space Station. Instead, it will remain in orbit as a free-flying spacecraft. To date, Space Adventures has arranged eight orbital trips to the International Space Station for seven wealthy customers: Dennis Tito in 2001; South African entrepreneur Mark Shuttleworth in 2002; American entrepreneurs Greg Olsen in 2005 and Anousheh Ansari in 2006; Microsoft co-founder Charles Simonyi (twice) in 2007 and 2009; computer game developer Richard Garriott in 2008;...
  • Astronomers to sweep entire sky for signs of extraterrestrial life

    02/16/2020 1:13:58 AM PST · by 4Runner · 58 replies
    The Guardian ^ | February 14, 2020 | Hannah Devlin
    Three Earth-sized planets orbiting a cool, dim star called Trappist-1 in the constellation of Aquarius will be high up on the hit list. Computer models suggest the Trappist-1 system is among the most promising for finding planets with atmospheres and temperatures that would enable liquid water to exist on the surface. The James Webb Telescope will be able to tell us whether they have atmospheres like the Earth or Venus, said Meadows. It gives us our first real chance to search for gases given off by life on another planet. Were basically going to get to study Earths cousins.
  • Astronomers want public funds for intelligent life search

    02/15/2020 11:04:54 AM PST · by BenLurkin · 31 replies
    The UK's Astronomer Royal, Professor Lord Rees, is the chair of the organisation's international advisory group. He told the BBC that, given that the multi-billion pound Large Hadron Collider had not yet achieved its aim of finding sub-atomic particles beyond the current theory of physics, governments should consider modest funding of a few million pounds for Seti. "I'd feel far more confident arguing the case for Seti than for a particle accelerator," he said. "Seti searches are surely worthwhile, despite the heavy odds against success, because the stakes are so high". Nasa once funded the search for extra-terrestrial intelligence to...
  • Meteorite smashes into factory compound leaving 20ft crater in celestial event

    02/14/2020 11:59:26 AM PST · by DUMBGRUNT · 24 replies
    Daily Star ^ | Sofie Jackson
    This is the instant an unexpected meteorite smashed into a city in India, vaporising on impact and leaving a 20ft crater. Luckily, the space rock did not hit any residential areas and instead impacted in a factory compound in an industrial part of the city, "I was urinating... I saw a bright light I was scared I ran away midway," confessed one witness. My city is in now plot for sci-fi movie, joked another viewer on social media.
  • Asteroid Pallas' violent history revealed in new images

    02/13/2020 3:17:43 PM PST · by BenLurkin · 13 replies
    Fox News ^ | 02/13/2020 | Christopher Carbone
    Pallas, which is third largest object in the asteroid belt and named after the Greek goddess of wisdom, can be seen in detailed images published Monday in a study in Nature Astronomy. Researchers believe that the asteroid's pockmarked surface is a result of its unique orbit. Pallas has a tilted orbit, so it is basically smashing through the asteroid belt at an angle, unlike most other similar objects. The astronomers obtained 11 series of images, observing Pallas from different angles as it rotated. After pulling the images together, the researchers generated a three-dimensional reconstruction of the shape of the asteroid,...
  • Potentially hazardous asteroid spotted passing Earth with its own tiny moon

    02/12/2020 7:24:19 PM PST · by BenLurkin · 14 replies
    cnet ^ | 02/12/2020 | Eric Mack
    Radar images from the Arecibo Observatory in Puerto Rico showed that asteroid 2020 BX12 is actually a binary system. In other words, the big space rock is carrying around a smaller asteroid 70 meters (230 feet) in diameter that orbits it like a tiny moon. With a diameter of up to 450 meters (1,476 feet) according to NASA data, the larger of the two asteroids qualifies the system to fit the definition of a potentially hazardous asteroid, which is based solely on its size and vicinity to Earth. It does not, however, mean that 2020 BX12 actually presents a potential...
  • Study reveals details of 'golf ball asteroid'

    02/11/2020 8:30:19 AM PST · by Red Badger · 12 replies
    Phys.Org ^ | February 11, 2020 | by Jennifer Chu, Massachusetts Institute of Technology
    Two views of the asteroid Pallas, which researchers have determined to be the most heavily cratered object in the asteroid belt. Credit: Massachusetts Institute of Technology ______________________________________________________________________ Asteroids come in all shapes and sizes, and now astronomers at MIT and elsewhere have observed an asteroid so heavily cratered that they are dubbing it the "golf ball asteroid." The asteroid is named Pallas, after the Greek goddess of wisdom, and was originally discovered in 1802. Pallas is the third largest object in the asteroid belt, and is about one-seventh the size of the moon. For centuries, astronomers have noticed that the...
  • Huge red star might explode soon and next few weeks are critical [Betelgeuse update]

    02/10/2020 10:33:13 PM PST · by BenLurkin · 96 replies
    CNET ^ | February 10, 2020 | Eric Mack
    Supergiant star Betelgeuse has been getting dimmer at an unprecedented pace over the past few months, leading some astronomers to wonder if it might be in the process of the collapse that precedes a supernova explosion. But there are other possible explanations, and we should have a better idea of what's happening to the massive star by the end of the month. Betelgeuse has no more than about 100,000 years left to burn and could start its death throes just about anytime between now and then. When it does go supernova, it's expected to result in a dramatic light show...
  • NASA Television Video File- MS 13 Hatch Closing Undocking Landing - February 6, 2020

    02/08/2020 9:15:42 AM PST · by NorseViking · 13 replies
    Nasa video ^ | February 6, 2020
    NASA Television Video File- MS 13 Hatch Closing Undocking Landing - February 6, 2020 66 143 просмотра NASA Video 439 тыс. подписчиков Опубликовано: 6 февр. 2020 г. Expedition 61 Crew, Record-Setting Astronaut Christina Koch Return to Earth Expedition 61 Commander Luca Parmitano of ESA (European Space Agency), Soyuz commander Alexander Skvortsov of Roscosmos and NASA Flight Engineer Christina Koch landed safely on Earth near the town of Dzhezkazgan, Kazakhstan, Feb. 6 after bidding farewell to their colleagues on the complex and undocking their Soyuz MS-13 spacecraft from the Poisk Module on the International Space Station. Koch completed a 328-day, 139-million...
  • Soyuz MS-13 landing

    02/07/2020 11:15:36 PM PST · by NorseViking · 7 replies
    SciNews ^ | February 7, 2020
    The Soyuz MS-13 spacecraft landed in Kazakhstan on 6 February 2020, at 09:12 UTC (15:12 local time), with NASA astronaut Christina Koch, ESA astronaut Luca Parmitano and cosmonaut Alexander Skvortsov of Roscosmos. Christina Kochs 328-day-long mission is the longest single spaceflight in history by a woman and the second-longest single spaceflight by a U.S. astronaut Credit: NASA/Roscosmos
  • In the US East? Look up for Sundays resupply mission launch

    02/07/2020 8:35:51 AM PST · by BenLurkin
    earthsky.org ^ | 02/07/2020 | Elanor Imster
    If youre not in the U.S. mid-Atlantic region, you can also watch live coverage of the Cygnus launch on NASA TV and the agencys website. TV coverage begins Sunday at 22:00 UTC (5 p.m. EST). This will be Northrop Grummans 13th commercial resupply mission to ISS using its Cygnus cargo spacecraft. The spacecraft will be loaded with approximately 8,000 pounds (3,600 kg) of research, crew supplies, and hardware. The Cygnus spacecraft will arrive at the space station on Tuesday, February 11. ISS astronauts will capture Cygnus with the stations robotic arm and install the spacecraft. Cygnus is scheduled to stay...
  • NASA's Parker Solar Probe spotted 'stealth' outburst on the sun

    02/04/2020 7:39:39 AM PST · by BenLurkin · 6 replies
    Space.com ^ | 02/04/2020 | Meghan Bartels
    In November 2018, as seen from Earth and certain spacecraft, the sun seemed to be calm. But it wasn't: The sun was experiencing what scientists call a "stealth" coronal mass ejection. And conveniently, NASA's Parker Solar Probe was completing its first close pass behind the sun, putting its instruments in a perfect position to see what was happening on Nov. 11 and 12 during this usually cryptic event. "If you've ever seen a coronal mass ejection image, you normally see a lot of activity in these images," Kelly Korreck, a solar physicist at the Smithsonian Astrophysical Observatory, said during a...
  • Space-time is swirling around a dead star, proving Einstein right again

    01/31/2020 7:21:44 AM PST · by C19fan · 32 replies
    Space.com ^ | January 30, 2020 | Charles Q. Choi
    The way the fabric of space and time swirls in a cosmic whirlpool around a dead star has confirmed yet another prediction from Einstein's theory of general relativity, a new study finds. That prediction is a phenomenon known as frame dragging, or the Lense-Thirring effect. It states that space-time will churn around a massive, rotating body. For example, imagine Earth were submerged in honey. As the planet rotated, the honey around it would swirl and the same holds true with space-time. Satellite experiments have detected frame dragging in the gravitational field of rotating Earth, but the effect is extraordinarily...
  • Is There a Hidden 'Super-Earth' Exoplanet Orbiting Our Closest Stellar Neighbor?

    01/29/2020 2:39:41 PM PST · by Red Badger · 19 replies
    www.popularmechanics.com ^ | Jan 16, 2020 | By Jennifer Leman
    A new exoplanet only 4.2 light years away would prove that there's plenty left to discover in our own cosmic backyard. Scientists have found evidence of a new exoplanet candidate orbiting our closest stellar neighbor, Proxima Centauri. This exoplanet candidate, Proxima c, likely has a mass six times that of Earth. But it's unlikely that life would survive on the planet, given its frigid temperatures. ----------------------------------------------------------------------- The red dwarf star Proxima Centauri is our closest stellar neighbor; the star system is a measly 4.2 light years from Earth and can be seen with the naked eye. Because of this proximity,...