Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

Scientists who, studying the available data, have concluded that 3I/ATLAS is, to paraphrase, a comet doing comet things.

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

A large radio galaxy study finds our solar system moves faster than theory predicts, raising new questions about how matter ...

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

Westfield High School senior Kaitlynn Goulette and freshman Krystyna Goulette have developed a walkable, scale model of the ...