NASA’s OSIRIS-APEX spacecraft captured this view of Earth as it soared some 2,100 miles (3,400 kilometers)…
Category: Earth Sky
Are water-carved caves on Mars hiding alien life?
View larger. | The 8 potential water-carved caves on Mars – called karst caves – are…
What if a small black hole devoured you?
View larger. | Artist’s concept of a black hole system containing a dormant black hole orbiting…
Colorful life on exoplanets might be lurking in clouds
View larger. | Artist’s concept of a rocky planet like Earth with colorful microbes in its…
These weird aurora blobs are rare proton auroras
View at EarthSky Community Photos. | These green aurora blobs in front of the more distant…
A fast-growing supermassive black hole in the early universe
The James Webb Space Telescope captured this image of galaxies floating through space. At top is…
Exoplanet atmospheres are a key to habitability
Artist’s concept of exoplanet GJ 9827 d. It might be a steam world, with lots of…
Lost sisters of the Pleiades are scattered across the sky
The Pleiades star cluster, a favorite of stargazers, is actually part of a group that has…
Was NASA’s ‘no life on Mars’ conclusion in the 70s wrong?
View larger. | NASA’s Viking 1 lander took this photo of surrounding rocks and sand dunes…
Shape of a supernova detected 1 day after explosion
This artist’s impression shows a star going supernova. About 22 million light-years away, the supernova –…