Any uncertainty in the calculation of the object’s orbit causes variations in the predicted solution. Instead of one precise ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists' minds as its revised trajectory is now ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

Although it won’t hit Earth, an asteroid once labeled a “city killer” is now back in the spotlight — this time, because it ...

This year, the alert system for defending the planet against incoming space rocks was activated for the first time. It won’t be the last ...

Learn about the plane-sized asteroid that will pass by Earth the week of July 28, 2025, and find out how astronauts can track ...

YR4 was detected by the Asteroid Terrestrial-impact Last Alert System, or ATLAS telescope, in Río Hurtado, Chile, two days ...

NASA currently leads the nation's planetary defense efforts, but some are calling for the Space Force to take control.

The Bosumtwi impact crater in Ghana is different, however. It is well preserved (not deeply eroded or buried under sediments) ...

Sandia scientist John Sandusky believes he has found a way to put heliostats, which typically turn solar energy into ...