The faraway moon has 'a slushy high-pressure ice layer' similar to the melting Arctic that could hide extraterrestrial life.

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

When a thunderstorm recently lit up the night sky, cameras captured towering red shapes that looked uncannily like glowing jellyfish hanging above the clouds. The images raced across social media, and ...

As this celestial nomad, dubbed 3I/ATLAS, makes its closest approach to Earth this week — reaching its minimum distance at 1 ...

On Friday, December 19, 2025, comet 3I/ATLAS will make its closest approach to Earth. 3I/ATLAS can be found near the ...

On Dec. 18, just 24 hours before its closest approach, the Green Bank Telescope scanned frequencies from 1 to 12 GHz. Their ...

A rock no bigger than a golf ball could have caused the recent lunar impact, according to the observatory. At an ultra-high ...

The sudden silence of a veteran Mars spacecraft has turned a routine comet flyby into one of the most intriguing space ...

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space ...

Firefly plans to launch its lander toward the moon’s South Pole by the end of 2026. Assuming it arrives in one piece, the receiver will attempt to capture a signal from an orbiting satellite to test ...

Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

On Dec. 19, 3I/ATLAS will be about 1.8 astronomical units away (170 million miles), almost twice as far as the average ...