Scientists have discovered that the 3I/ATLAS — a Manhattan-sized interstellar object that potentially has alien tech — is ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

NASA’s IMAP mission will explore the heliosphere and study how it shields Earth from cosmic radiation and space weather.

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at ...