An astronomer in Italy caught a fortuitous image of the bright comet Lemmon seemingly entwined with the glowing trail of a ...

Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially ...

Astronomer Gianluca Masi captured spectacular footage of a glowing meteor trail wrapping around the colossal tail of Comet ...

Comet Lemmon was closest to Earth last week, and it is now getting closer to the Sun. It is visible in the western sky after ...

Is 3I/ATLAS really an alien mothership? NASA and the scientific community weigh in on the controversial topic.

Two space probes, Hera and Europa Clipper, are ideally positioned to fly through the debris trail of interstellar comet ...

Not everything about space is true. Our planetary scientist is here to share the truth about popular celestial myths.

A rare green Hallowe’en comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

If you missed the Perseid meteor shower this summer, another chance to see the Colorado sky light up in all its cosmic glory ...

The cosmic snowball, made up of frozen gases, dust and rock, is hurling past Earth at around 135,000 mph. Its orbital period ...

The Orionid meteor shower peaks Oct. 21-22 with up to 20 meteors per hour. Comet Lemmon and Comet SWAN R2 may also glow green ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...