ESA's Hera spacecraft for planetary defense performs a flyby of Mars. The gravity of the red planet shifts the spacecraft's ...

The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

Observations from the European Southern Observatory's Very Large Telescope helped show that the expected trajectory of asteroid 2024 YR4 poses nearly zero risk of impacting Earth in 2032.

Alternatively, instead of slamming into Earth's surface, 2024 YR4 may enter Earth's atmosphere but explode in mid air in what's known as an 'airburst,' like Tunguska asteroid in 1908.

The amount of light reflected by the asteroid’s surface is used to estimate how big it is. However, the Webb telescope, slated to begin observations of 2024 YR4 in early March, sees the universe ...

Researchers uncover the oldest asteroid crater in Australia, revealing its role in shaping Earth’s ancient climate.

“Serpent Mound is the largest serpent effigy built anywhere on the planet Earth,” O’Grady said. “Serpent Mound is built up on ...

using its thrusters to disturb the asteroid's surface to reveal what lies beneath, as shown in an undated NASA artist's video rendering, in this screengrab obtained from a handout video.