Dinosaur-killing asteroid came from beyond Jupiter

View larger. | Artist’s concept of the massive asteroid impact that wiped out the dinosaurs some…

Oceans of water on Mars deep underground?

Mars in late 2023, via the Mars Express spacecraft/ ESA. New analysis of data from NASA’s…

LIVE on Monday: Super Blue Moon

The Super Blue Moon is coming! Join the EarthSky team LIVE beginning at 12:15 p.m. (17:15…

A solitary star speeding across the Milky Way

Artist’s concept showing a hypothetical white dwarf, left, that might have exploded as a supernova, expelling…

Does a supermoon have a super effect on us?

View at EarthSky Community Photos. | Jean-Baptiste Feldmann in Gleizé, France, captured this image on August…

Asaph Hall finds Mars moon Phobos 147 years ago

Asaph Hall discovered Phobos on August 17, 1877. This image of the large crater Stickney on…

‘Continents’ on Venus similar to those of early Earth?

View larger. | Topographic radar map of Venus, the world next-inward from Earth. Ishtar Terra, the…

Did meteorites create the moon’s atmosphere?

View larger. | NASA’s Galileo spacecraft captured this detailed view of the moon on December 7,…

Gaia spots over 350 asteroids with possible moons

Here are the orbits of the more than 150,000 asteroids. Among these, Gaia data identified hundreds…

What’s Phil thinking of NOW? GAIA

What’s Phil thinking? He’s thinking about the wealth of knowledge about our home galaxy, the Milky…