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Keyword: asteroids

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  • A possible impact crater for the 1908 Tunguska Event

    06/22/2007 11:46:00 AM PDT · by Mike Darancette · 25 replies · 7,696+ views
    Terra Nova ^ | 7/01/2007 | Terra Nova
    The so-called ‘Tunguska Event’ refers to a major explosion that occurred on 30 June 1908 in the Tunguska region of Siberia, causing the destruction of over 2000 km2 of taiga, globally detected pressure and seismic waves, and bright luminescence in the night skies of Europe and Central Asia, combined with other unusual phenomena. The ‘Tunguska Event’ may be related to the impact with the Earth of a cosmic body that exploded about 5–10 km above ground, releasing in the atmosphere 10–15 Mton of energy. Fragments of the impacting body have never been found, and its nature (comet or asteroid) is...
  • Asteroid that wiped out the dinosaurs 66 million years ago crashed into Earth at 'the deadliest possible angle' of 60 degrees which maximized production of greenhouse gases

    05/26/2020 11:45:21 AM PDT · by Olog-hai · 72 replies
    Daily Mail (UK) ^ | 11:45 EDT, 26 May 2020 | Ian Randall
    The asteroid that wiped out the dinosaurs around 66 million years ago crashed into Earth at “the deadliest possible angle”, researchers have concluded. The giant impacter struck what is today Mexico’s Yucatán Peninsula at around 60 degrees — maximizing the production of climate-altering greenhouse gases. The global disaster caused by the space rock — which was bigger than Mount Everest — was far worse than once thought, Imperial College London experts said. Previous studies had suggested the asteroid came in at an angle of around 30 degrees, while others concluded that it crashed almost straight down. However, the team’s computer...
  • Asteroid sneaks past satellites in one of the closest flybys on record

    05/06/2020 1:58:13 PM PDT · by BenLurkin · 59 replies
    cnet.com ^ | 05/05/2020 | Eric Mack
    A previously unseen asteroid the size of a truck flew about 4,350 miles (7,000 kilometers) over the Pacific Ocean on Monday, making it one of the closest passes by our planet on record. Astronomers had no notice of asteroid 2020 JJ's existence, as it was discovered using the Mt. Lemmon Survey in Arizona right around the time it reached its closest point to us. Had 2020 JJ actually struck Earth, most of it probably would have burned up in the atmosphere. In other words, this space rock wasn't any sort of existential threat, but it did fly closer than many...
  • See the big asteroid 1998 OR2 just before its Earth flyby in a Slooh webcast today

    04/29/2020 4:22:42 AM PDT · by BenLurkin · 20 replies
    space.com ^ | 04/29/2020 | Hanneke Weitering
    Slooh will broadcast live telescope views of the near-Earth asteroid, called 1998 OR2, tonight (April 28) beginning at 7 p.m. EDT (2300 GMT). You can watch it live here on Space.com, courtesy of Slooh, or directly from Slooh.com and its YouTube page. This webcast will be free for anyone to watch, but paid members of Slooh can also tune in at Slooh.com and join a so-called "star party" on Zoom, where viewers will be able to join the discussion. Slooh astronomers will also be answering members' questions during this "star party." The one-hour public event will commence just 11 hours...
  • After the Dinosaur-Killing Impact, Soot Played a Remarkable Role in Extinction

    04/28/2020 6:31:27 AM PDT · by rktman · 62 replies
    smithsonianmag.com ^ | 4/27/2020 | Noah Taylor Redd
    The interstellar object (alternatively a comet or an asteroid) that killed the dinosaurs when it slammed into Earth didn't work alone. Researchers have shown previously that its after-effects, such as tidal waves and earthquakes, played an important role in the mass extinctions of three-fourths of plant and animal life. Now, new research suggests that one of the most important factors was the soot-rich smoke from fires sparked by the collision. Clay Tabor, a geoscientist at the University of Connecticut, and his colleagues studied soot, sulfates and dust to see how each type of particle may have contributed to the cataclysm....
  • Giant asteroid flying by Earth next week looks like it's wearing a face mask

    04/23/2020 6:56:19 PM PDT · by BenLurkin · 33 replies
    CNN ^ | 04/23/2020 | Ashley Strickland
    The asteroid is called 52768 (1998 OR2), and it was first spotted in 1998. On April 29, it will pass within 3,908,791 miles of Earth, moving at 19,461 miles per hour. That's still 16 times farther than the distance between Earth and the moon. The flyby is expected to occur on Wednesday, April 29, at 5:56 a.m. ET, according to NASA's Center for Near-Earth Object Studies. The center tracks Near-Earth Objects, or NEOs, that could collide with Earth. Arecibo Observatory is a National Science Foundation facility managed by the University of Central Florida. A team of experts has been monitoring...
  • Newfound asteroid the size of a house will fly safely by Earth Wednesday

    04/15/2020 11:22:45 AM PDT · by BenLurkin · 44 replies
    space.com ^ | 04/14/2020 | tarik Maliq
    The asteroid 2020 GH2 will pass Earth at a range of about 223,000 miles (359,000 kilometers). The average distance from the Earth to the moon is about 239,000 miles (385,000 km). Asteroid 2020 GH2 is about between 43 and 70 feet (13-70 meters) wide, or about the size of a detached house, according to data from the Center for Near Earth Object Studies at NASA's Jet Propulsion Laboratory and the agency's Asteroid Watch Twitter account. It was first discovered on Saturday (April 11) and is being tracked by astronomers at several observatories, including the Catalina Sky Survey at Mount Lemmon...
  • See every square foot of asteroid Bennu, Earth's little frenemy

    04/07/2020 3:17:34 PM PDT · by BenLurkin · 26 replies
    Engadget ^ | 04/07/2020 | Steve Dent
    While it has a face only an astrogeologist could love, that rubble could be as old as the solar system itself. Bennu is also number two on the Palermo Technical Impact Hazard scale, meaning there’s a (slight) chance it could impact Earth very violently in around 150 years. And now, Bennu has the distinction of being the subject of the highest resolution mosaic ever made of any planetary body. The image was collected by NASA’s OSIRIS-REx spacecraft between March 7th and April 19th, 2019. At the time, it was about 2 to 3 miles from the surface of the 1,600...
  • Asteroids (2020 GW1) (2020 GQ1) (2020 GF1) Close Approach April 7, 2020 and April 8, 2020 [very cool visualization of NEOs approaching -and missing the Earth]

    04/06/2020 7:43:51 PM PDT · by DoodleBob · 19 replies
    YouTube ^ | April 6, 2020 | ASTEROID TRACKER
    Asteroids (2020 GW1) (2020 GQ1) (2020 GF1) Close Approach April 7, 2020 and April 8, 2020 Music by:DivKid -Dreamer
  • Trump signs executive order to support moon mining, tap asteroid resources

    04/06/2020 2:45:18 PM PDT · by BenLurkin · 54 replies
    space.com ^ | April 6, 2020 | Mike Wall
    President Donald Trump signed an executive order today (April 6) establishing U.S. policy on the exploitation of off-Earth resources. That policy stresses that the current regulatory regime — notably, the 1967 Outer Space Treaty — allows the use of such resources. This view has long held sway in U.S. government circles. For example, the United States, like the other major spacefaring nations, has not signed the 1979 Moon Treaty, which stipulates that non-scientific use of space resources be governed by an international regulatory framework. And in 2015, Congress passed a law explicitly allowing American companies and citizens to use moon...
  • NASA to explore space rock worth so much money it would DESTROY world economy

    01/16/2017 4:24:39 PM PST · by COBOL2Java · 136 replies
    Daily Star ^ | 16th January 2017 | Peter Truman
    THE American space agency is planning to send a spacecraft to a lump of metal in space worth quadrillions of dollars. The 200km-wide asteroid is currently orbiting the sun between Mars and Jupiter. It is made up of various precious metals such as iron, nickel and gold. Experts believe the iron alone in the rock would be worth $10,000 quadrillion – enough to cause the world’s economy, worth $73.7 trillion, to promptly collapse altogether.
  • Huge asteroid 1998 OR2 will zip harmlessly by Earth April 29. See the latest telescope photos. (more about which to worry...NOT)

    04/04/2020 12:23:13 PM PDT · by DoodleBob · 34 replies
    Space ^ | April 4, 2020 | Hanneke Weitering
    The huge "potentially hazardous" asteroid 1998 OR2 is just a few weeks away from its close encounter with Earth, and you can watch the giant space rock's approach online or with a small telescope.While asteroid 1998 OR2 is large enough to wreak havoc on Earth if it were to strike our planet, it won't come anywhere near a collision when it flies by on April 29. "On April 29, asteroid 1998 OR2 will safely pass by 3.9 million miles/6.2 million kilometers," scientists with NASA's Asteroid Watch program said in a Twitter update as they debunked a Daily Express report...
  • The Federal Reserve Now Owns 15 Percent of the U.S. Treasury Market; At Its Current Rate, It Could Own the Whole Market in Less than Two Years

    03/28/2020 5:38:53 PM PDT · by NRx · 15 replies
    Wall Street on Parade ^ | 03-28-2020 | Pam Martens and Russ Martens
    According to the U.S. Treasury, as of February 29, 2020, there was $16.9 trillion in marketable U.S. Treasury securities outstanding. Of that amount, at the end of February, the Federal Reserve held $2.47 trillion or 14.6 percent – making it, by far, the largest single holder of U.S. Treasuries anywhere in the world. ...But exactly how can a so-called “free market” function smoothly if the country’s own central bank is cornering the market. Salomon Brothers paid a $290 million fine and came close to getting slapped with criminal charges by the U.S. Department of Justice in 1992 for manipulating prices...
  • NASA Spots 4 Asteroids Headed For Earth This Weekend

    03/20/2020 7:12:58 PM PDT · by bitt · 93 replies
    ibtimes.com/ ^ | 3/10/2020 | Inigo Monzon
    KEY POINTS NASA detected four asteroids approaching Earth The biggest asteroid in the group measures 180 feet wide All four asteroids will approach Earth this weekend NASA’s automated asteroid tracking system has detected four near-Earth objects that are expected to approach the planet this weekend. According to the agency, the biggest asteroid in the group is about as big as the Leaning Tower of Pisa in Italy. The first asteroid that will approach Earth this weekend has been identified by NASA’s Center for Near-Earth Object Studies (CNEOS) as 2020 FK. As indicated in CNEOS’ database, this asteroid has an estimated...
  • The Asteroid Threat is Out There

    01/10/2007 8:28:03 PM PST · by PioneerDrive · 60 replies · 1,780+ views
    Popular Mechanics via MSN ^ | December 2006 | David Noland
    Friday the 13th of April 2029 could be a very unlucky day for planet Earth. At 4:36 am Greenwich Mean Time, a 25-million-ton, 820-ft.-wide asteroid called 99942 Apophis will slice across the orbit of the moon and barrel toward Earth at more than 28,000 mph. The huge pockmarked rock, two-thirds the size of Devils Tower in Wyoming, will pack the energy of 65,000 Hiroshima bombs -- enough to wipe out a small country or kick up an 800-ft. tsunami. On this day, however, Apophis is not expected to live up to its namesake, the ancient Egyptian god of darkness and...
  • Asteroid Collision Simulator: Interactive Map Lets You Simulate Destruction of Asteroids

    03/17/2020 6:27:15 PM PDT · by WebHankerchief22 · 20 replies
    Asteroid Collision Simulator ^ | March 16th, 2020 | Paul McBurney
    With concerns of the Coronavirus Outbreak the media has been less involved with other matters. As a result I would like to post something unrelated to that of the virus. The linked asteroid collision map is a simulation that lets ordinary users like you take the powers of nature into your hands and view the destruction of asteroid collisions in different magnitudes and mediums. It's extremely interesting to see how a relatively small object can wreak havoc on society because of it's high impact speed. I believe that having tools similar to this is important because it raises awareness to...
  • The asteroid Ryugu has a texture like freeze-dried coffee

    03/17/2020 6:19:14 AM PDT · by BenLurkin · 9 replies
    sciencenews.org ^ | 03/16/2020 | Lisa Grossman
    As an ancient, carbon-rich asteroid, Ryugu is thought to be a time capsule of solar system history. To read that history, Hayabusa2 explored Ryugu from June 2018 to November 2019, and grabbed two samples from the asteroid to bring back to Earth (SN: 7/11/19). Hayabusa2 observed how the asteroid’s surface retained and released heat, a clue to its composition and structure. Dense rocks take in heat slowly and hold that heat for longer; more porous rocks change temperature quickly, like sand on a beach. Ryugu’s heat map shows that it’s about 50 percent porous, meaning half of it is holes,...
  • Asteroid 2007 FT3 will nearly miss earth in 2024 at 86 million miles.

    03/16/2020 6:55:52 PM PDT · by WebHankerchief22
    Asteroid Collision Blog ^ | March 15th, 2019 | Paul McBurney
    The race for the Democrat nomination has narrowed to two leading candidates. President Trump is undoubtedly preparing for either Bernie Sanders or Joe Biden as his 2020 election opponent. We should be able, at this point, to make a reasonable guess at how the president would fare against either of these candidates.
  • This asteroid has a 1 in 40 chance of hitting earth in 2029, it could also hit in 2036.

    03/14/2020 10:07:20 AM PDT · by WebHankerchief22 · 44 replies
    The Asteroid Collision Blog ^ | March 13th, 2020 | Paul McBurney Jr
    According to the provided article, asteroid 99942 Apophis has a 1 in 40 chance of hitting earth in 2029. If it misses in 2029, it would have an even higher chance of hitting in 2036. According to NASA and other reputable sources the asteroid is of 370 meters in diameter which is about the size of the Eiffel Tower. When you plug this into a simulation like the asteroid collision map, you can see that its large magnitude can cause some pretty serious damages depending on the location it impacts. According to the simulation, some of these effects are earthquakes,...
  • Ancient human settlement was obliterated by a COMET that exploded in Earth's atmosphere and sent fragments of molten glass 'hot enough to melt cars' flying to the ground 12,800 years ago

    03/10/2020 10:32:32 AM PDT · by BenLurkin · 83 replies
    DailyMail ^ | 10 March 2020 | Ian Randall
    The event destroyed a village found in the Abu Hureyra dig site in Syria... The impact is also believed to have contributed to the extinction of many large animals, including mammoths as well as North American horses and camels. Experts believe the explosion helped bring about the demise of the North American Clovis culture and usher in an episode of climatic cooling. The Abu Hureyra site is located on the edge of a vast region known as the Younger Dryas Boundary (YDB) strewnfield, which incorporates around 30 sites across Europe, the Americas and parts of the Middle East. The strewnfield...