The brief, bright appearance of Comet C/2025 A6 (Lemmon) is rapidly drawing to a close, giving stargazers a final, narrow ...

The icy visitor, which reached its closest point on October 21, is currently situated more than 63.3 million miles from Earth ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...

While the Orionids aren’t the most prolific meteor shower of the year, they are incredibly fast movers. They enter the atmosphere at about 41 miles per second (about 150,000 miles per hour), heating ...

Halloween is upon us and the 2025 spooky season is abuzz with talk of three cosmic visitors — Comet Lemmon, Comet SWAN and the interstellar traveler 3I ATLAS — said to be haunting the night sky. But ...

Several planets, including Mercury, Mars, Venus, Uranus, Neptune, Saturn, and Jupiter, are visible this month. Saturn's moon Titan will cast its shadow on Saturn twice during July. Neptune will be ...

Astronomers have detected a gigantic comet — possibly the largest ever discovered — and it’s spewing gases from its nucleus as it shoots through our cosmic neighborhood. “These measurements give us a ...

Mercury and the star Mebsuta are visible in the west after sunset. Mars will be very close to the star Regulus on June 16th. Comet Schwassmann-Wachmann 1 is visible in Leo with a medium to large ...

The comet Tempel 1 (shown) was also studied this decade, though Wild 2 is the first comet whose particles were analyzed on Earth. Science After a thorough analysis of particles collected from a comet ...