A meteoroid is a small particle from an asteroid or comet orbiting the sun. Many are the size of a pebble. Once a meteoroid enters earth’s atmosphere it becomes a meteor. A meteor is a shooting ...

For a brief few weeks in early 2025, astronomers were worried about the asteroid 2024 YR4. Discovered in late 2024 by an ...

Meteoroid strikes can transport water both into and out of cold traps. The team ruled out the possibility that all of the water detected came from the meteoroids themselves.

The meteoroid impacts could blast away the moon’s water -- at least until another comet collides with it.

Meteoroid Impacts and Their Geophysical Effects Publication Trend The graph below shows the total number of publications each year in Meteoroid Impacts and Their Geophysical Effects.

The "meteoroid cluster" phenomenon, a rare sight in which many meteors appear almost simultaneously, was observed in Aomori ...

Potentially dangerous comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new research shows.

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? Researchers show that this is not due to the random pull of the planets, but ...