Looking for a sky event this week? Check out our full Sky This Week column. October 14: Look south for Pluto and M75 Comet ...

Comet Lemmon, discovered earlier this year, will make a close approach to Earth later this month, giving skywatchers the ...

Comet C/2025 A6 Lemmon is getting brighter and whether you have a telescope, binoculars or just your eyes, here’s how you can ...

Comet Lemon will be in the heart of the constellation Boötes, the Herdsman, as it makes its closest approach to Earth on Oct.

Conditions are near-perfect to spot this celestial visitor, which won't appear again in our night sky for another millennium.

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some ...

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the ...

Harvard professor Avi Loeb discusses the first new images of 3I/ATLAS after it passed Mars. Early photos from international ...