Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an ...

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside ...

I/ATLAS is set to reach its closest point to the Sun on Wednesday (October 29), at around 11:47 Universal Time (UT). The ...

Harvard scientist Avi Loeb has revealed that if comet 3I/ATLAS were an 'alien spaceship', it could change course for Earth ...

It's a weekend double cosmic treat! Comets Lemmon and SWAN are making a close approach to Earth. Can you see it in NJ? Timing ...

Comet Lemmon can be seen in the northwestern sky near the bright star Arcturus. Skywatchers should use the Big Dipper to ...

Comet Lemmon was first spotted on January 3, 2025, by the Mount Lemmon Survey near Tucson, Arizona. Its previous journey ...

If you own a pair binoculars or a telescope, you might be able to spot Comet Lemmon in the sky! Here's what you need to know.

Comet Lemmon’s nucleus is believed to be just a couple of miles in diameter. This is relatively small compared to other previously visible comets, such as the giant Hale-Bopp, which was visible in the ...