New photos, including a striking technicolor timelapse, show off the newly discovered interstellar object 3I/ATLAS as it ...

Astronomers unveiled a striking view of the new interstellar visitor 3I/ATLAS on its journey toward the inner solar system.

An animated image shows C/2011 L4 in motion. A newly discovered comet from the farthest reaches of the solar system could become a sky spectacle in 2013, astronomers say. No guarantees, though ...

Here's what you need to know to treat yourself to a rare, colorful cosmic sight this weekend. How to see Mars and Comet ZTF The Hubble Space Telescope took this snapshot of Mars in the 1990s.

Two couples include a rare comet in their proposals for a once-in-a-lifetime cosmic engagement By Lauren M. Johnson , CNN 3 minute read ...

The European Space Agency said it received a signal at 11:03 a.m. EST from the 100-kilogram (220-pound) Philae lander after it touched down on the icy surface of the comet named 67P/Churyumov ...

The cosmic interloper was first thought to be an interstellar asteroid, a chunk of rock shed by another star system. Then astronomers decided it must be a comet , likewise flung loose from some ...

The comet comes from the Oort Cloud, a realm filled with frozen debris on the outer edge of our solar system. Initial observations suggest that the comet may orbit the sun once every 80,000 years.