An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025.

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

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.

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

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 ...

This holiday season, the night sky turns into a stage for a weeklong celestial performance. The evenings around Christmas ...

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

The moon and sun share top billing in 2026. Kicking off the year's cosmic wonders is the moon, drawing the first astronauts ...

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 ...