NASA has activated a global planetary defense group to study a massive interstellar object exhibiting strange, possibly artificial characteristics ...

I/ATLAS puts the Planetary Defense Network on watch. NASA and ESA say no threat as IAWN drills tracking, while Harvard’s Avi Loeb raises an alien-origin idea.

Hera, a European spacecraft, is halfway to the Didymos asteroid system to study the impact of NASA’s DART mission.

The world’s first full-scale planetary defense test is in motion. The mission is called DART and what scientists learn from it could save humankind from a future catastrophic event. Nancy Chabot is a ...

Southwest Research Institute could lose more than $265 million if the cuts go through, including defunding missions already ...

Since the 1970s, Voyager 1 has been making groundbreaking discoveries. But its journey is far from over, and it's still ...

Scientists have found that Uranus is emitting its own internal heat — even more than it receives from sunlight — and this discovery contradicts observations of the distant gas giant made by NASA's ...

Humanity's drive to explore has taken us across the solar system, with astronaut boots, various landers and rovers' wheels ...

An illustration of the asteroid Apophis, which will make a close flyby of the Earth in April 2029. Credit: ESA Science Office SALT LAKE CITY — Two mission concepts are seeking funding to fly by and ...