Comet Leonard, which last passed by Earth 80,000 years ago, has been dazzling the night sky before Christmas, and there's only a few days left to see the celestial object before it disappears forever.

(KTLA) – This time last year, skygazers were treated to the “Christmas Star,” when Jupiter and Saturn aligned and appeared the closest together from Earth’s vantage point in nearly 800 years. Flash ...

The comet was first discovered in January by astronomer Greg Leonard. The celestial object has likely spent the last 35,000 years traveling toward the sun, according to Sky & Telescope, and once it ...

NASA's $10 billion space telescope studied the third interstellar object to enter the solar system, measuring the chemical contents of its halo. The James Webb Space Telescope (JWST) has observed the ...

The interstellar comet 3I/ATLAS (C/2025 N1) is hurtling through the solar system and will be at its closest point to Earth ...

(CNN) — There is a new comet in town, and December is your only chance to see it in the Northern Hemisphere. Astronomers say that comet Leonard is our best and brightest comet to see in 2021. The ...