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NASA’s Curiosity rover captured this image showing Earth as a tiny dot of light seen from the surface of Mars. Our planet Earth shines more brightly than any star in

View larger. | Artist’s concept of exoplanet K2-18b. How do astronomers plan to detect the signatures of alien life in the atmospheres of distant planets? Find out below! Image via

The inset image shows dead star RXJ0528+2838 creating a shock wave as it moves through space. A strong outflow expelled from a star is usually the cause of such a

Artist’s concept of the ancient lake in Gale crater on Mars. A new study says the former lake – and other icy lakes on Mars – could have remained liquid

Artist’s concept of the fast-spinning asteroid 2025 MN45. It’s the fastest-rotating asteroid with a diameter greater than 500 meters (0.3 miles) that scientists have yet found. It’s 710 meters (0.44

Artist’s impression of a galaxy cluster forming in the early universe. These are active galaxies, with radio jets spewing abundant hot gas into the space between the cluster members. This

The asteroid 2005 UK1 will make a close – but safe – pass by Earth on January 12, 2026. Though it is considered a potentially hazardous asteroid, it will not

This artist’s concept shows Betelgeuse’s companion star orbiting the red supergiant. The companion, which is orbiting clockwise from this point of view, generates a dense wake of gas that expands

View larger. | Artist’s concept of a rogue planet in the process of microlensing a more distant star. The foreground object bends the light from the distant star (peach-colored arcs),

This image shows the location of Cloud-9, which is 14 million light-years from Earth. The diffuse magenta is radio data from the ground-based Very Large Array (VLA), showing the presence