A long-retired NASA satellite burned up in Earth's atmosphere over the weekend, the agency has confirmed.
There's a strange sphere of mass at the outer reaches of solar space. Did another star help put it there?
A U.S. spy satellite launch on a Delta IV Heavy rocket was delayed a week after a last-minute abort Saturday (Aug. 29).
Two clouds of cold-star forming gas are sailing on the Milky Way's hot nuclear wind, and nobody can explain why.
A small, soft smacked into Costa Rica on April 23, 2019. And it carried dust older than our sun, as well as clues regarding how life formed on Earth.
Though 2020 QG survived its recent encounter with Earth, the rock's path through space was altered significantly.
SpaceX just plucked another payload fairing out of the sky, and you can see video of the dramatic cosmic catch.
A newly discovered car-sized asteroid just made the closest-known flyby to Earth without hitting our planet.
The Pentagon just announced the creation of a task force to analyze and understand the "nature and origins" of UFOs. Here's what the much-hyped news means.
NASA powered up its Mars helicopter Ingenuity for the first time on Aug. 7 and tested the little craft's electronics.
Astronomers have bounced lasers of mirrors left by Apollo astronauts on the lunar surface for decades. But this is the first time bouncing one off a lunar orbiter — after a decade of trying.
Vast lava tubes pock the surface of the moon and Mars, and could protect explorers from the elements. But first someone needs to explore them.
Researchers are investigating an alien version of water inside the strange, icy interiors of Uranus and Neptune.
Puerto Rico's famous alien-hunting telescope called the Arecibo Observatory took massive damage after a cable snapped in the dead of night.
NASA will discontinue the use of certain nicknames for astronomical objects that are considered to be racist, the space agency said Aug. 5.