When we think of planet killer asteroids, survival odds might seem slim. But we aren't defenseless.

NASA works with scientists worldwide to advance our understanding of what hazards are in our solar system and how we can mitigate the risks.

On June 30, 1908, an asteroid tore across the sky above a remote part of Siberia before erupting in a cataclysmic explosion.

"People will be hurt and killed" if we're not vigilant, scientists warn.

Bennu, Apophis, and thousands of near-Earth objects are under constant surveillance by space agencies around the world.

From asteroid fragments drifting through space to icy moons orbiting distant planets, this collection highlights the dynamic and ever-changing nature of our solar system. The images capture everything ...

The asteroid Dimorphos, left, is shown with its larger companion Didymos in space as it blasts dust and boulders in a lopsided debris cone following the NASA DART mission on Sept. 26, 2022. Credit: ...

Let’s get the first question out of the way quickly. Asteroid 2024 YR4, a 50- to 90-meter-wide Earth-approaching object, is likely not going to hit our planet in 2032. But, since the odds of it ...

International Asteroid Day highlights global efforts to detect, track and deflect potentially hazardous asteroids while ...

That asteroid explosion over Tunguska was 1,000 times stronger than the nuclear bombing of Hiroshima.

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We're not thinking about this all the time, but every single day we live under threat from asteroids, comets, and other kinds of celestial objects that may fall on our heads and end it all. Luckily, ...