Back in July, NASA's ATLAS telescope in Chile spotted a mysterious space object moving at break-neck speeds towards our ...

The highly anticipated interstellar comet is currently invisible from Earth and completely hidden by the Sun's glare.

LOS ANGELES - Since 1989, the camera on NASA's Galileo spacecraft has captured a comet slamming into Jupiter, volcanoes erupting on one of its moons and the first known moon orbiting an asteroid. On ...

As an interstellar visitor nears the Sun, scientists brace for a crucial moment that could reveal whether it’s a simple comet ...

A new analysis of data from NASA’s Galileo spacecraft reveals a subsurface “ocean” of magma–either molten or partially molten–beneath the surface of Jupiter’s volcanic moon Io. The finding, from a ...

Half a billion miles away, a lone emissary from Earth will carry out its own death sentence today when it screams into the atmosphere of the planet Jupiter at 108,000 mph and gets vaporized. The ...

In the end, it was the hint of life on an icy moon that doomed the Galileo spacecraft to a fiery death. This afternoon, the NASA spacecraft will end its 2.8-billion-mile odyssey with a suicidal plunge ...