The size of the Solar System and the Universe is truly beyond our comprehension. When we think of the vastness of space, we ...

It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

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

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

After defending his PhD thesis on modeling interstellar objects on Monday, June 30, Matthew Hopkins intended to take some ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

When most people think of our Solar System, they think of the 8 planets officially recognized by the International Astronomical Union (IAU). But what if I told you there are at least 40 planets, and ...

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

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

The comet was discovered by the NASA -funded Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope in Chile ...

A Massachusetts homeowner says getting solar panels was one of the best decisions she's made. Even better, she saved $10,000 on her installation costs and wants to spread the word about the tools that ...