The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take a far less glamorous means of transport.

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

The European Space Agency's JUICE spacecraft has captured detailed images of the interstellar comet 3I/ATLAS, offering ...

As engineers work to fix issues with the Artemis 2 mission's Space Launch System (SLS) rocket, NASA officials are reexamining what flights will follow and are shaking up plans for ...

Want to catch a glimpse of the planetary alignment from Florida? Here's what to know, including a list of official dark sky locations in the state.

Known as the R-36Orb inside the military, the weapon was designed by Soviet military to bypass American defenses.

Many of the spaceships in the Star Trek franchise are clever in their construction and striking to look at. These 10 vessels?

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a ...