Bottom line: Chiricahua National Monument in the southeastern corner of Arizona is poised to become the U.S.’s 64th national ...

Southern Hemisphere, watch for Mercury after sunset! The planet will be both farthest from the sun, with the moon nearby, on October 12. Can you still see Venus? It’ll drop close to horizon by ...

| Artist’s concept of the ancient lake in Gale crater. A new study from researchers in Japan suggests that ancient rains on ...

And, spookily, this shower comes from the ghost of a comet. Biela’s Comet was a regular visitor to skies in the late 1700s ...

Could black holes have planets? New research says yes, they could. New simulations suggest massive planets could form in the ...

The changes in temperature and vertical structure of the atmosphere are the two main processes that affect the weather on ...

LHS 1140b is a potentially rocky exoplanet in its star’s habitable zone. It’s an intriguing target in the search for worlds ...

What are smart scopes? And why are they great for astrophotography? EarthSky’s Marcy Curran tells you why she loves them.

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

Sun news for October 11, 2026. An all-sky camera at the Geophysical Institute in Fairbanks, Alaska, caught the northern lights through clouds early earlier today (2:08 to 2:27 a.m. local time on ...

The Komodo dragon ( Varanus komodoensis) is the largest living lizard on Earth. The biggest males can exceed 10 feet (3 ...