Is a major California earthquake overdue?

According to current forecasts, California has a 93% chance of an earthquake of magnitude 7 or greater occurring by 2045.

Asteroid to buzz by Super Bowl Sunday

How to watch online as asteroid 2002 AJ129 - a relatively massive, fast-moving asteroid - passes at about 10 times the moon's distance on February 4, 2018.

Misty sunrise, happy dog

Misty and golden sunrise in England, with a man walking his very happy dog!

Mount Sharp photobombs Mars rover selfie

Mars' Mount Sharp - whose flanks are the focus of the Curiosity rover's studies on Mars - photobombed this January 2018 selfie of the rover.

View of Mars rover’s journey so far

Check out this sweeping vista on the planet Mars, taken by the Curiosity rover from a mountainside ridge. It provides a look back at key sites visited by the rover since its 2012 landing.

Moon and Regulus on February 1

Enjoy the pairing of the moon and Regulus - brightest star in Leo the Lion - on February 1, 2018! From some places the moon will pass in front of (occult) Regulus.

See it! Super Blue Moon eclipse photos

It was a Blue Moon, a supermoon and a moon in total eclipse. EarthSky community members around the world came through as always with awesome photos.

January 31 is 1st of 2 Blue Moons in 2018

According to modern folklore, the second of 2 full moons in a month is called a Blue Moon. In 2018, we have 2 of those! How often it happens, here.

Why space radiation won’t stop human space exploration

Videos and links related to potential health effects to astronauts from space radiation, plus solutions and countermeasures.

Close-up on a giant star

Astronomers have created the first-ever detailed image of the surface of a giant star, about 530 light-years away and 350 times larger than our sun.