The Solar System seems calm, but that tranquility is more fragile than it appears. Now imagine one day looking up and ...

The Hubble Space Telescope captured the best picture yet of a comet visiting our solar system from another system. The photos were released on Thursday by NASA and the European Space Agency. The comet ...

Astronomers may have just discovered a new interstellar object passing through our solar system. The object, a celestial body from another star system, was discovered on Tuesday by the University of ...

A rocky cigar-shaped object detected in space last month came from another solar system, astronomers said Monday as they confirmed an unprecedented observation. The discovery may provide clues as to ...

The comet 3I/ATLAS moves against a backdrop of stars. The ATLAS survey telescope in Rio Hurtado, Chile, was the first to report that the object came from interstellar space. ATLAS / University of ...

The comet 3I/ATLAS is taking a long holiday journey this year. It's visiting from another solar system altogether. It's the third interstellar object recorded passing through our solar system.

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star. NASA and the European Space Agency released the latest photos Thursday.

Astronomers are monitoring an object headed our way that may have wandered over from another star system.Scientists have discovered what might be only the third known interstellar object to pass ...