This Earth Day, Tuesday, April 22, three former NASA astronauts will present new evidence that our planet has experienced many more large-scale asteroid impacts over the past decade than previously thought… three to ten ...
Space Exploration
Apr 17, 2014
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David Tholen, an astronomer at the University of Hawaii, recently reported on the status of asteroid Apophis during a virtual meeting of the American Astronomical Society's Division for Planetary Sciences. During his presentation, ...
With the help of the NASA/ESA Hubble Space Telescope, a German-led group of astronomers have observed the intriguing characteristics of an unusual type of object in the asteroid belt between Mars and Jupiter: two asteroids ...
Space Exploration
Sep 20, 2017
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An asteroid hit Earth hours after it was discovered Monday, turning into a dazzling fireball that was spotted throughout Europe.
Astronomy
Apr 17, 2023
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Asteroids, meteors, and meteorites … It might be fair to say these rocks from space inspire both wonder and fear among us Earthlings. But knowing a bit more about each of them and how they differ may eliminate some potential ...
Space Exploration
Jun 3, 2015
1
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The 49ers who panned for gold during California's Gold Rush didn't really know where they might strike it rich. They had word of mouth and not much else to go on.
Space Exploration
Jun 1, 2020
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63
On Oct. 12, 2017, the asteroid 2012 TC4 is slated to whizz by Earth dangerously close. The exact distance of its closest approach is uncertain, as well as its size. Based on observations in October 2012 when the space rock ...
Space Exploration
Apr 13, 2015
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The largest asteroid in more than a century will whiz safely past Earth on September 1 at a safe but unusually close distance of about 4.4 million miles (7 million kilometers), NASA said.
Space Exploration
Aug 30, 2017
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It's 1.7 miles long. Its surface is covered in a sticky black substance similar to the gunk at the bottom of a barbecue. If it impacted Earth it would probably result in global extinction. Good thing it is just making a flyby.
Space Exploration
May 24, 2013
9
1
After a six-year journey, a plucky spacecraft called Hayabusa2 zinged back into Earth's atmosphere in late 2020 and landed deep in the Australian outback. When researchers from the Japanese space agency JAXA opened it, they ...
Planetary Sciences
Jun 9, 2022
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Asteroids, sometimes called minor planets or planetoids, are small Solar System bodies in orbit around the Sun, especially in the inner Solar System; they are smaller than planets but larger than meteoroids. The term "asteroid" has historically been applied primarily to bodies in the inner Solar System since the outer Solar System was poorly known when it came into common usage. The distinction between asteroids and comets is made on visual appearance: Comets show a perceptible coma while asteroids do not.
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