White House takes aim at several projects failing to meet cost and schedule estimates—and several more that aren’t.

When NASA's DART mission crashed into the asteroid Dimorphos, the first stage of the impact saw the spacecraft's solar panels ...

When NASA’s DART spacecraft collided with a small asteroid moon in late 2022, the impact made history. It was the first ...

In the almost three years since NASA proved that it could successfully deflect an asteroid, we’ve learned a lot about these ...

NASA's DART spacecraft attempted to deflect an asteroid about the size of the Great Pyramid of Giza. New work tracking the debris has found a few fairly large surprises.

Initial sightings of Asteroid 2032 YR4 were tricky, but tracking has gotten better, helping us understand its path. New data, ...

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

NASA has been tracking an asteroid with unusual characteristics, but could there be more to the story than they’re letting on ...

YR4 won’t hit Earth, but a 4% chance remains for a lunar impact. ESA's upcoming NEOMIR telescope could revolutionize early ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...