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

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

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 ...

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

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

Artist’s concept of a future moon base. A new study suggests there would be enough water on the moon for smaller bases, villages or towns, but not larger cities. Image via ESA. Elvis and fellow ...

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, ...

Visible planets and night sky guide. Tomorrow morning, look for the moon near bright Jupiter and the star Regulus before they are too far away! The solar system’s most bizarre moons reveal active, ...

Flare activity: Solar activity jumped to moderate levels with 3 M flares. Flare production also soared, from just 6 B-class (weak) flares the previous day to 22 flares this period: 3 M-class, 9 ...

Saturn is putting on one of its best shows of the year. The ringed planet is bright, visible all night and perfectly placed for observing. Saturn reached opposition on October 4, when Earth passed ...

Saturn at opposition. Earth flies between the sun and Saturn on October 4, 2026. Our motion brings Saturn to its brightest and closest for the year. EarthSky’s Deborah Byrd wants to tell you how to ...

Happy World Space Week! It runs October 4 through 10. The dates were chosen in honor of the October 4, 1957, launch of Sputnik 1 — world’s first Earth-orbiting satellite — whose unassuming beep beep ...