Sometimes, it's hard to remember that Earth is constantly being bombarded by literally tons of space debris daily. The larger ...

Scientists call it a meteoroid stream, but until now had little clue as to how an asteroid—which are comprised of rock and metal—could produce one. New research published today in the ...

It came from the same direction as the most destructive meteoroid to impact Earth in a century, but it may be three times larger. And just like that asteroid that blew out windows in Chelyabinsk ...

Every 2,000 years or so, a meteoroid the size of a football field hits Earth and causes significant damage to the area. Only once every few million years, an object large enough to threaten Earth ...

Such events are generally associated with comets that orbit the sun, occurring when the Earth's orbit intersects with their paths and the meteoroid streams they leave behind. In the rare case of a ...

A tiny rock fragment has hit the new James Webb Space Telescope's main mirror. The damage inflicted by the dust-sized micrometeoroid is producing a noticeable effect in the observatory's data but ...

What is the difference between a meteor, a meteorite, a meteoroid and an asteroid? It’s all about location and size. Roughly speaking, an asteroid is a relatively small body (that isn’t a ...

Entry of a meteoroid into the atmosphere is followed by ablation of the meteoroid material into the wake and subsequent ionization through high-velocity impact with the ambient atmospheric ...

A prime hypothesis holds that they formed from dry debris flows driven by geophysical processes, such as meteoroid impacts, and changes in temperature due to sun exposure. A recent NASA study ...

To be considered a fireball, a meteor — a streak of light caused by a meteoroid that enters Earth's atmosphere — needs to reach magnitude -4, which means it appears brighter than Venus in the ...

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