A colossal comet from another star is ripping through our solar system right now. Designated 3I/Atlas, this behemoth is up to 20 kilometers wide and traveling at a blistering 240,000 km/h on a one-way ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth itself — were made. Scattered between the orbits of Mars and Jupiter lies the ...

NASA has unveiled close-up pictures of an interstellar comet that's journeying through our solar system. One scientist has claimed it may not be a comet, pointing out anomalies in the data he has seen ...