After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...

The moon will be 99% full Friday night, and with mostly clear skies expected for Louisville in the evening, tonight is a good ...

Once a realm of imagination and stargazing, the Solar System has now been revealed in stunning clarity through decades of ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

BC: Julius Caesar barely avoids a catastrophic defeat to Pompey near the city of Dyrrachium (in what is now Albania).

Red sprites are among a class of enigmatic weather phenomena that appear over thunderstorms, known as Transient Luminous ...

NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the ...

A SpaceX Falcon Heavy launched NASA's Europa Clipper mission Monday to investigate Europa, a moon of Jupiter's that has an icy surface which may have an ocean under it, teeming with life. (Photo ...

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

Rare red sprite spotted by astronaut Nichole Ayers from the ISS Sprites flash high above storms and vanish in just ...