On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 ...

Dazzling 'dawn storms' that illuminate Jupiter's poles are 10x more intense than the gas giant's regular auroras.

The month brings a strong lineup of celestial sights, including a supermoon, meteor activity, and several close moon-planet ...

Jupiter is a massive, terrifying planet. Despite being studied for centuries and even visited by nine space probes in the ...

The auroras are one of the most mesmerising naturally occurring phenomenon in the sky. These wonders are like those pots of ...

NASA’s Hubble Space Telescope reobserved interstellar comet 3I/ATLAS on Nov. 30, with its Wide Field Camera 3 instrument. At the time, the comet was about 178 million miles (286 million kilometers) ...

The northern and southern lights, especially active lately, have been treating sky watchers to spectacular shows. But what causes the colors — and why shouldn't you whistle at the aurora?

Three supermoons will lighten up the night skies in 2026, the stunning result when a full moon inches closer to Earth than ...

If you’ve been waiting for a good year to start paying attention to the night sky, 2026 makes a strong case. There’s a supermoon in early January, plus a six-planet alignment and total lunar eclipse, ...

From bioluminescence tours to northern lights excursions, nighttime tourism is on the rise—and I understand the allure well.

The final night of 2025 is the perfect time to watch the moon close to the Pleiades, find the brightest star in the night sky ...