An enormous number of near-Earth asteroids (NEAs) orbit around the sun, and among them, 2,072 NEAs are recorded in the Minor Planet Center (MPC) database as potential hazardous near-Earth asteroids (PHAs). These PHAs frequently ...
Astronomy
Oct 17, 2022
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We have now discovered 30,039 near-Earth asteroids in the solar system—rocky bodies orbiting the sun on a path that brings them close to Earth's orbit. The majority of these were discovered in the last decade, showing how ...
Astronomy
Oct 13, 2022
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68
When the Chelyabinsk fireball exploded across Russian skies in 2013, it littered Earth with a relatively uncommon type of meteorite. What makes the Chelyabinsk meteorites and others like them special is their dark veins, ...
Astronomy
Oct 4, 2022
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130
An international team of researchers studying dust samples retrieved by the Hayabusa-2 space probe, has found that some of its dust grains are older than the solar system. In their paper published in The Astrophysical Journal ...
Watching the skies for large asteroids that could pose a hazard to Earth is a global endeavor. So, to test their operational readiness, the international planetary defense community will sometimes use a real asteroid's close ...
Astronomy
May 31, 2022
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184
Asteroids fly through our solar system all the time, but it's rare for us to take notice of them. But that's changed this week, as an asteroid passes within 1,231,184 miles of Earth on January 18. The asteroid, dubbed 7482 ...
Astronomy
Jan 19, 2022
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11
Two teams of researchers are publishing their findings thus far after initial study of samples collected from the asteroid Ryugu and returned to Earth last year by the Japanese space probe Hayabusa2. Both teams are large ...
A massive asteroid will whiz past the Earth on Saturday, but hold any thoughts of disaster movies.
Astronomy
Nov 15, 2021
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225
A near-Earth asteroid named Kamo`oalewa could be a fragment of our moon, according to a new paper published in Nature Communications Earth and Environment by a team of astronomers led by the University of Arizona.
Planetary Sciences
Nov 11, 2021
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310
In December 2020, Japan's Hayabusa2 spacecraft swung by Earth to drop off a cache of rock samples taken from a near-Earth asteroid called Ryugu. Asteroids like Ryugu are thought to represent the ancient building blocks of ...
Space Exploration
Sep 27, 2021
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