The observation was described on March 26 in the Astronomical Journal. Nine years ago, comet 41P/Tuttle-Giacobini-Kresák—41P ...

A new analysis of archival Hubble Space Telescope photos reveals that a peculiar comet slowed its spin before fully reversing ...

The comet originated in the outer solar system and visits the inner solar system every 5.4 years.

The first crewed mission of NASA's Artemis moon program may take off in a matter of days, with a launch window that opens on ...

New evidence suggests that the famous interstellar traveler may be so old that its home system no longer exists.

In 2017 NASA’s Hubble Space Telescope zoomed in on a comet as it passed around the sun. And then things took a more unusual ...

In an incredibly lucky cosmic accident, NASA’s Hubble Space Telescope captured a comet breaking apart in real time—something ...

NASA advises looking toward the eastern sky before sunrise, particularly in mid to late April, when the comet will pass ...

They include an early full moon, a meteor shower known for generating unexpected spectacles, and a lovely conjunction of the ...

NASA’s Hubble telescope captured an “extraordinarily” rare moment of a comet exploding into fragments, the space agency said.

In a happy twist of fate, NASA's Hubble Space Telescope witnessed a comet in the act of breaking apart. The chance of that happening while Hubble watched is extraordinarily minuscule. The findings are ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the northern hemisphere).