Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with ...

The other two known interstellar comets did not offer such an opportunity.

A rare astronomical event will display six planets in alignment, visible after sunset, giving skywatchers a spectacular ...

Harvard's Avi Loeb says a rare sun alignment on 22 January could prove interstellar visitor 3I/ATLAS is an alien spaceship. Read the latest on this cosmic mystery.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. For five consecutive mornings, beginning on Aug. 17, early ...

Take a deep breath in … and out. Sculpture takes on new meaning by moonlight at Calder Gardens, as it hosts a Moon Alignment Series.

Though 3I/ATLAS poses no threat to Earth or our satellites, its journey highlights how the networks we built for planetary defence are now being used for 'interstellar archaeology'. As Earth slips ...

3I/ATLAS will enter a rare opposition phase, aligning on the axial path of Earth and Sun on Jan 22 (EST) or Jan 23 at 5 am ...