Comet Lemmon, which gave us a great show in October, is slowly fading and dropping lower in the southwestern sky. When the ...

As November begins, two of the solar system's rocky planets form a nice pair low in the western sky during twilight. They add a sparkle to our view of the constellation Scorpius the Scorpion as it ...

Comprehensive guide to November 2025 night sky events, including visible planets Saturn, Jupiter, Venus and Mercury, the year’s brightest supermoon and peak meteor showers.

The interstellar comet 3I/ATLAS has a thick irradiated crust that no longer resembles its home star system, simulations and ...

Here's where Comet 3I/ATLAS, Lemmon and SWAN are in the Halloween sky.

Interstellar comet 3I/ATLAS on Wednesday reached its closest point to the Sun, a point known as perihelion. Although this ...

"No low-frequency radio image of the entire Southern Galactic Plane has been published before, making this an exciting ...

Find out what's up in your night sky during November 2025 and how to see it in this Space.com stargazing guide.

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is hiding it from Earth ...

Comet C/2025 A6 (Lemmon) will pass through the neck of the great celestial serpent represented by the constellation Serpens ...

Abstract: The star sensor is generally affected by the atmospheric background light and the aerodynamic environment when working in near-space, which results in missing stars or false stars. Moreover, ...

About 10,000 U.S. troops and dozens of military aircraft and ships are in the region as the Trump administration increases pressure on Venezuela. Small combat ship U.S.S. Wichita Six Reaper drones ...