NASA's New Horizons found the solar wind slows as it nears interstellar space, helping improve models of the solar system's ...

For obvious reasons, the Sun’s influence weakens as you get closer to the edge of the solar system. But things might be a lot ...

The data obtained by Webb had two things that took researchers by surprise.

A comet born around another star crossed into our solar system, accelerated to roughly 153,000 miles per hour at its closest ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolith, hued ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

The New Horizons spacecraft sends back its sensational snapshots of Jupiter, and its volcanic moon Io, before the mission's close encounter with Pluto (Photo by: Photo12/Universal Images Group via ...

Interstellar comet 3I/ATLAS has spent the last several months on a tour of our solar system. NASA spacecraft and telescopes have snapped photos of this celestial visitor over the course of its journey ...

"People will be hurt and killed" if we're not vigilant, scientists warn.

This week marks 48 years since the Sept. 5, 1977, launch of NASA's Voyager 1 spacecraft from Cape Canaveral, Florida, to study Jupiter and Saturn up close. Nearly a half-century later, Voyager 1 and ...