20 trends tracked about this subject — the full history, oldest to newest below.
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NASA is preparing to study asteroid Apophis during its unprecedentedly close approach to Earth in April 2029.
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Coverage examines the size, origin, and extreme thermal effects of the asteroid that struck Earth 66 million years ago.
Astronomers have discovered (44) Nysa, the first known three-lobed asteroid in our solar system, which is accompanied by its own moon.
A near-Earth object tracked for 27 years as an asteroid has revealed itself to be a comet in disguise by growing a tail.
China is developing a planetary defense mission to strike a 30-meter asteroid at Mach 26 to test its ability to alter the object's trajectory.
An object tracked as an asteroid since 1998 has been reclassified as a dark comet following an unexplained orbital shift.
A meteorite that crashed through a home two years ago is revealed to contain rare fluids and amino acids from outer space.
NASA's Psyche spacecraft has successfully utilized a Mars gravitational slingshot to accelerate toward a metal-rich asteroid of immense potential value.
Scientific research proposes new methods for planetary defense using nuclear energy to deflect potentially hazardous asteroids.
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A rare asteroid flyby scheduled for 2029 is drawing global attention to planetary defense capabilities and historical space rock impacts.
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Japan's Hayabusa2 probe has successfully completed a close flyby of asteroid Torifune to test planetary defense technologies.
Japan's Hayabusa2 probe has successfully completed a flyby of the asteroid Torifune, marking a new phase in planetary defense research.
New research suggests an extended period of intense asteroid bombardment prevented Earth's early crust from forming and may have influenced the origins of life.
The Chinese spacecraft Tianwen-2 is closing in on the quasi-moon Kamoʻoalewa to collect surface samples.