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Keyword: asteroid

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  • Mile-Wide ‘Walnut’ Asteroid With Its Own Moon To Fly By Earth Saturday

    05/21/2019 4:52:36 PM PDT · by BenLurkin · 39 replies
    cbs2la ^ | 05/21/2019
    Asteroid (66391) 1999 KW4 is actually a double asteroid or a binary asteroid...composed of one large asteroid orbited by a smaller moon...about a third of a mile wide and orbits around the larger body about once every 16 hours. The Las Cumbres Observatory describes 1999 KW4 as “slightly squashed at the poles and with a mountain ridge around the equator, which runs all the way around the asteroid. This ridge gives the primary an appearance similar to a walnut or a spinning top.” While 1999 KW4 is classified as a “Potentially Hazardous Asteroid” by the Minor Planet Center, it should...
  • Speculation Beta Taurid meteor shower may conceal killer asteroids

    05/17/2019 12:50:41 AM PDT · by LibWhacker · 16 replies
    news.com.au ^ | 5/16/19 | Jamie Seidel
    Every year, Earth passes through the tail of the comet Encke - twice. This isn’t unusual. We regularly cross cometary trails of ice and dust. But this one may be different. It could have been the source of the dramatic 1908 Tunguska airburst which flattened hundreds of square kilometres of Russian forest. The 45m wide comet fragment struck on June 30, at the height of the Beta Taurid shower. Was it, in fact, a part of that shower? Astronomer and science advocate Dr Phil Plait says it is possible. Calculations of its trajectory indicate the Tunguska object came from the...
  • Protect the solar system from a mining 'gold rush' by creating a 'space wilderness' that preserve...

    05/13/2019 6:31:41 PM PDT · by BenLurkin · 80 replies
    Mailonline ^ | 05/13/2019 | Ian Randall
    Researchers from the US Smithsonian Institution and King’s College London argue for preserving seven-eighths of the solar system as official 'space wildernesses.' This regulation would protect planets, moons and other bodies from unchecked mining and other types of industrial exploitation. But its core aim would be to ensure that humankind's expansion into our star system is undertaken manageably to avoid a future where all the resources are gone. … It will be challenging to decide which aspects of our star system should be protected from the space mining industry, the researchers wrote in their paper. However, areas that might merit...
  • Asteroid Strike Simulation Ends With Expected Catastrophic Results

    05/07/2019 10:17:15 AM PDT · by SeekAndFind · 34 replies
    Hotair ^ | 05/07/2019 | Jazz Shaw
    What would happen if we found out on very short notice that a sizable asteroid was incoming and projected to strike a major city? You might guess that it would be pretty bad news. And according to a simulation designed by NASA and run at a recent scientific conference, you’d probably be right. The fake asteroid crisis assumed that an objecting packing a thousand times as much punch as a nuclear bomb was splintered off of a larger body and wound up on a collision course with New York City. (USA Today) In a NASA simulation of a fictional...
  • Vast asteroid created 'Man in Moon's eye' crater

    07/20/2016 5:42:28 PM PDT · by MtnClimber · 19 replies
    BBC ^ | Rebecca Morelle
    One of the Moon's biggest craters was created by an asteroid more than 250km (150 miles) across, a study suggests. It smashed into the lunar surface about 3.8 billion years ago, forming Mare Imbrium - the feature also known as the right eye of the "Man in the Moon". Scientists say the asteroid was three times bigger than previously estimated and debris from the collision would have rained down on the Earth. The asteroid was so big it could be classified as a protoplanet - a space rock with the potential to become a fully formed world. Lead author Prof...
  • Killer asteroid flattens New York in simulation exercise

    05/04/2019 7:42:52 PM PDT · by BenLurkin · 41 replies
    Phys.org ^ | 05/04/2019
    Despite a simulated eight years of preparation, scientists and engineers tried but failed to deflect the killer asteroid. The exercise has become a regular event among the international community of "planetary defense" experts. The latest edition began Monday near Washington, with the following alert: an asteroid roughly 100 to 300 meters (330 to 1,000 feet) in diameter had been spotted and according to rough calculations had a one percent chance of hitting the Earth on April 29, 2027. Each day during the conference, some 200 astronomers, engineers and emergency response specialists received new information, made decisions and awaited further updates...
  • Wrong-Way, Daredevil Asteroid Plays 'Chicken' with Jupiter

    03/30/2017 8:13:58 AM PDT · by BenLurkin · 34 replies
    space.com ^ | 03/29/2017 | Hanneke Weitering
    The unnamed asteroid shares Jupiter's orbital space while moving in the opposite direction as the planet, which looks like a recipe for a collision, astronomers said. Yet somehow, the asteroid has managed to safely dodge Jupiter for at least tens of thousands of laps around the sun, a new study showed. It was given the provisional designation 2015 BZ509 with the nickname "BZ." Scientists noticed that the asteroid moves in the opposite direction of every planet and 99.99 percent of asteroids orbiting the sun, in a state known as retrograde motion. ... BZ may seem like a lucky asteroid, narrowly...
  • Meteor that hit Earth came from beyond the solar system

    04/21/2019 2:39:34 PM PDT · by SunkenCiv · 33 replies
    CNET ^ | April 16, 2019 | Eric Mack
    Harvard astronomer Abraham "Avi" Loeb and undergraduate student Amir Siraj have drafted a new paper identifying the second cosmic object to visit the inner solar system from beyond (Oumuamua being the first). The paper has been submitted for publication in The Astrophysical Journal Letters, but has yet to be peer reviewed. "The reported meteor entered the solar system with a speed of 60 km/s (134,216 mph) relative to the local standard of rest (obtained by averaging the motion of all stars in the vicinity of the Sun)," Loeb wrote in an email. "Such a high ejection speed can only be...
  • God of Chaos Asteroid Apophis is Headed for Earth—and NASA is Excited

    04/30/2019 11:31:21 AM PDT · by BenLurkin · 25 replies
    newsweek ^ | 4/30/19 at 6:29 AM EDT | By Aristos Georgiou On
    On April 13, 2029, a 1,110-foot-wide asteroid known as 99942 Apophis will speed past our planet at an estimated distance of around 19,000 miles, potentially coming closer to the surface than some orbiting spacecraft. Despite being a decade away, this future close encounter is causing quite a stir within the asteroid research community. So much so that it is the focus of a session Tuesday at the 2019 Planetary Defense Conference in College Park, Maryland, during which scientists will discuss everything from potential observation strategies to hypothetical missions that could explore the object itself. On the day of the close...
  • NASA gameplans massive asteroid strike

    04/29/2019 9:21:18 PM PDT · by ETL · 8 replies
    FoxNews.com/Science ^ | April 29, 2019 | Chris Ciaccia | Fox News
    World governments have been concerned for decades about a potential asteroid collision and the chaos that would ensue upon Earth. Now, the information of what the different agencies would do about it is being shared with the public for the first time ever on social media. Though the drill is run every two years by asteroid scientists around the world, the European Space Agency has decided to share the event publicly so everyone can see what would happen and what actions might be taken to mitigate the damage. “The first step in protecting our planet is knowing what’s out there,”...
  • NASA and FEMA Will Simulate an Impending Asteroid Strike Next Week

    04/26/2019 7:37:54 PM PDT · by BenLurkin · 66 replies
    Gizmodo ^ | 04/26/2019 | Ryan F. Mandelbaum
    They hope to learn the best strategies for responding to a potential strike, starting from the moment a threatening asteroid is first detected by astronomers. NASA’s Planetary Defense Coordination Office will team up with other partners to perform a “tabletop exercise” on how they’d handle the news of a (fictional) asteroid on a collision course with Earth. On March 26, 2019, astronomers discover an asteroid in the night sky, far dimmer than Pluto to their telescopes. They name it 2019 PDC. Initially, it appears that the asteroid’s eccentric orbit bring it within approximately 18 times the Moon’s distance from the...
  • China to launch asteroid probe, calls for partners

    04/18/2019 5:38:27 PM PDT · by BenLurkin · 9 replies
    phys.org ^ | April 18, 2019
    China plans to launch an ambitious asteroid exploration mission and has invited collaborators to put their experiments on the probes, space agency officials said Thursday. The 10-year mission will involve a probe sent to a near-Earth asteroid to collect samples, said Liu Jizhong, head of China's Exploration and Space Engineering Centre. After the sample collection from the 2016 HO3 asteroid, the probe will return to Earth orbit where it will split into two. A capsule carrying the samples will return to Earth's surface, while a separate module will approach and orbit the comet 133P. A similar call was made for...
  • Asteroid ‘to fly past Earth closer than the moon tomorrow [today],’ scientists warn

    04/18/2019 6:51:15 AM PDT · by BenLurkin · 30 replies
    yahoo ^ | 04/17/2019 | Ron Waugh
    Earth will be entirely safe: the asteroid will fly past at a distance of 0.57 lunar distances, or 136,000 miles. The asteroid was spotted by the Catalina Sky Survey, Arizona, on A[pril 9, and is thought to be between 42-92 feet.
  • NASA Picks Falcon 9 Rocket for Launch of Asteroid Mission from Vandenberg AFB

    04/14/2019 5:47:31 AM PDT · by BenLurkin · 16 replies
    Noozhawk ^ | 04/12/2019 | Janene Scully,
    The spacecraft will demonstrate the capability to deflect an asteroid by colliding a spacecraft with it at high speed, a technique known as a kinetic impactor. By slamming the spacecraft into an asteroid at a high speed, scientists hope to push the space rock off course. DART, which will feature solar electric propulsion, has a date to intercept the asteroid Didymos’ small moon in October 2022. At that point, the asteroid — or what NASA called a moonlet — will be within 11 million kilometers, or 7 million miles, of Earth. To achieve the collision, DART will employ an onboard...
  • ‘Something is weird’: Incredible dinosaur graveyard raising eyebrows in the paleontology world

    04/06/2019 9:49:14 AM PDT · by BenLurkin · 28 replies
    Dr. Stephen Brusatte, a Palaeontologist at University of Edinburgh and author of The Rise and Fall of the Dinosaurs, is among those that have questions around the extraordinary claims made by the team that have... ... said he was “very excited about this discovery” but noted aside from a single partial dinosaur hip bone mentioned in the paper, ideas of a dinosaur graveyard being reported in the media lack any real evidence so far. “The New Yorker article reports a dinosaur graveyard with bones of many types of dinosaurs, along with feathers, eggs, and even embryos,” he said. “I’m afraid...
  • Japan (Very Carefully) Drops Plastic Explosives Onto An Asteroid

    04/05/2019 11:12:40 AM PDT · by Red Badger · 42 replies
    NPR ^ | April 5, 20191:31 PM ET | Geoff Brumfiel
    Early Friday morning, Japan's Hayabusa2 spacecraft detonated an explosive device over a small asteroid. The goal was to create a fresh crater that will later be studied by the spacecraft. Researchers watched from mission control in Sagamihara, Japan, and clapped politely as Hayabusa2 released an experiment known as the Small Carry-on Impactor. The device consisted of a copper disk packed with HMX high-explosive. Once the mothership had safely moved out of the line of fire, the impactor apparently detonated, firing the disk into the side of the asteroid. A camera released by Hayabusa2 appeared to catch the moment of impact,...
  • A seismically induced onshore surge deposit at the KPg boundary, North Dakota

    04/04/2019 8:16:25 AM PDT · by centurion316 · 24 replies
    Proceedings of the National Academy of Sciences ^ | April 1, 2019 | Robert A. DePalma
    The most immediate effects of the terminal-Cretaceous Chicxulub impact, essential to understanding the global-scale environmental and biotic collapses that mark the Cretaceous–Paleogene extinction, are poorly resolved despite extensive previous work. Here, we help to resolve this by describing a rapidly emplaced, high-energy onshore surge deposit from the terrestrial Hell Creek Formation in Montana. Associated ejecta and a cap of iridium-rich impactite reveal that its emplacement coincided with the Chicxulub event. Acipenseriform fish, densely packed in the deposit, contain ejecta spherules in their gills and were buried by an inland-directed surge that inundated a deeply incised river channel before accretion of...
  • Dinosaur fossils kept secret for years show the day of killer asteroid

    04/01/2019 7:03:20 AM PDT · by ETL · 65 replies
    FoxNews.com ^ | April 1, 2019 | Chris Ciaccia | Fox News
    The researchers say they found evidence in North Dakota of the asteroid hit in Mexico, including fish with hot glass in their gills from flaming debris that showered back down on Earth. They also reported the discovery of charred trees, evidence of an inland tsunami and melted amber. Additionally, University of Amsterdam professor Jan Smit said he and his colleagues found footsteps from dinosaurs moments before they met their untimely death. Smit said the footprints — one from a plant-eating hadrosaur and the other of a meat eater, maybe a small Tyrannosaurus Rex — is "definite proof that the dinosaurs...
  • 66 million-year-old deathbed linked to dinosaur-killing meteor

    03/29/2019 10:25:37 PM PDT · by LibWhacker · 64 replies
    UC Berkeley News ^ | 3/29/19 | Robert Sanders
    66 million-year-old deathbed linked to dinosaur-killing meteor By Robert Sanders, Media relations| March 29, 2019March 29, 2019 Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window) A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that killed and buried fish, mammals, insects and a dinosaur, the first victims of Earth’s last mass extinction event. The death scene from within an hour of...
  • An unusually big asteroid will soon pass closer to Earth than the moon

    03/15/2019 4:28:01 PM PDT · by BenLurkin · 31 replies
    cnet ^ | March 15, 2019 | Eric Mack
    An asteroid twice as big as the bolide that exploded over Russia in 2013 will whiz by us next week at a distance that's closer to Earth than the moon. Despite what tabloid headlines might lead you to believe, small asteroids zip by the Earth on a fairly regular basis... and astronomers discover many of them when Earth is already in their rear-view mirror. Asteroid 2019 EA2 could be up to 128 feet (39 meters) wide. It's the rare rock making a close flyby that's also large enough that astronomers spotted it well in advance. The asteroid, detected earlier this...