NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

The newest visitor is 416 million miles from the sun, out near Jupiter, and heading this way at a blistering 37 miles per ...

July 3 (UPI) -- NASA discovered the third interstellar comet through a survey telescope in Rio Hurtado, Chile. The ...

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth -- but closer to the red planet than us at a safe 150 million miles (240 ...

NASA first developed aerogel for a mission unlike any other. In the late 1990s, the Stardust spacecraft was sent to fly through the tail of a comet and return with samples.

Comet Bernardinelli-Bernstein, with a nucleus roughly 85 miles wide, is the largest detected so far. Credit: NASA / ESA / Zena Levy (STScI) illustration ...

Consisting of 99% air, aerogel is the world's lightest solid. This unique material has found purpose in several forms—from NASA missions to high fashion.