In a rare astronomical event, astronomers have confirmed the passage of an interstellar object through our solar system.

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Comet C/2022 E3 (ZTF) will pass near ... The flyby is a once-in-a-lifetime chance to see the "green comet," which poses no risk to the planet, before it continues on its far-flung orbit around the ...

Watch Comet 96P/Macholz brighten as it flies by the sun in these time-lapses captured by the ESA/NASA Solar and Heliospheric ...

The comet passed its closest point to Earth on Oct. 23, and had been named the "Halloween comet" given the possibility that it would be visible in the night sky near the end of October.

When you hear “naked-eye” comet, a few others come to mind, including Comet Hale-Bopp’s flyby in 1997 and Halley’s Comet, which astronomers have documented for 2,000 years.

Two comets are headed for a historic flyby of Earth this week, and you don't want to miss them. Closest comet to fly past Earth since 1770 coming this week - Los Angeles Times ...

A rare close flyby of a comet near Mars put NASA's orbiters in a potentially dangerous situation, but also allowed them to study the moving space object.

A comet will buzz Mars this Sunday (Oct. 19) in an epic encounter that has astronomers around the world tingling with excitement. Comet Siding Spring, also known as C/2013 A1, will miss the Red ...

Comet Siding Spring, named after the Australian observatory where it was discovered in January 2013, will make its closest approach to Mars at 2:27 p.m. EDT Oct. 19.

The Comet Siding Spring (C/2013 A1) is seen near Mars on Oct. 19, 2014 by a telescope with the Slooh Community Observatory during a rare flyby that scientists called a once-in-a-lifetime event.

So the comet’s flyby might have given researchers another clue in solving the mystery of how Mars’ atmosphere disappeared. The effects from the comet lasted about a day before Mars’ magnetic ...