Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly ...

An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

Look to the southern sky after dark on Dec. 26 to spot the waxing crescent moon shining near the gas giant Saturn among the stars of the constellation Pisces.

A satellite photo from July shows intricate snowy stripes painted across the Atacama Desert in Chile. The icy weather temporarily put the Atacama Large Millimeter/submillimeter Array (ALMA) ...

Scientists are constantly pushing the boundaries of knowledge and possibility. Over the last year, research teams around the ...

The year’s most memorable moments from astronomy and space exploration include a double-detonating supernova, a private moon ...

By tracking tiny stellar wobbles, astronomers have detected planets forming around young stars for the first time.

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

NASA’s SPHEREx space telescope has mapped the entire sky in 102 infrared colors for the first time, revealing cosmic secrets ...

Euclid launched in 2023 on a six-year mission to map the cosmos at scale, observing billions of galaxies stretching as far ...