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

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

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

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

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

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 ...

Curiosity rover has now spent 5,000 sols — the equivalent to 5,000 Martian days, or more than 14 years — on Mars. Here's a look at some of its discoveries. The September equinox is almost here! Autumn ...

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 ...

Hurricane Nolo, which threatened Hawaii in late September, has become Typhoon Nolo. It made the transition from a hurricane directly to a typhoon after crossing the International Date Line on October ...

What is that flashing star in autumn? We nominate these 3 candidates. Image via Igor Cibulsky/ Pexels. Capella is bright. It shines at magnitude 0.24, making it the 6th-brightest star in Earth’s sky, ...