DART's goal was to examine how well a planetary defense strategy in moving a threatening space rock away from Earth. Hera will examine the collision from a nearby vantage point, providing a different ...

Goodnight room, goodnight moon. The Hera spacecraft, speeding on to an asteroid, took a look back at Earth's moon — and in a new animation, you can see our neighbor shrinking as Hera flies away.

Goodnight room, goodnight moon. The Hera spacecraft, speeding on to an asteroid, took a look back at Earth's moon — and in a new animation, you can see our neighbor shrinking as Hera flies away.

When it makes its nearest pass, the 1,100-foot-wide (335-meter-wide) asteroid will be within 24,000 miles (38,625 kilometers) of our planet’s surface—roughly ten times closer than the Moon ...

"Asteroids and comets with a perihelion distance (closest to the Sun) less than 1.3 astronomical units (AU), or approximately ...

Scientists first caught sight of the mini-moon while observing an asteroid named Polymele, near the outskirts of the solar system. NASA says that the asteroid is around 17 miles along its widest axis.

Scientists predict that the asteroid Apophis may undergo significant surface changes when it makes its close approach to Earth in 2029, according to a new study. The asteroid, named after the ...

The asteroid burst into a fireball that lit the skies at 3:54 a.m. PT on October 22, 2024. Scientists estimated that the energy released by the asteroid upon impact with the atmosphere would be ...

It was a dishwasher-size capsule filled with bits of ancient asteroid—priceless matter from ... There’s precedent for this: Some of the Apollo-era moon rocks were preserved for 50 years ...