A photo taken on January 18, 2024 in Longyearbyen, the largest town in Svalbard, during the long polar night of these ...

Find out what's up in your night sky during November 2025 and how to see it in this Space.com stargazing guide.

When the sun is straight up at noon, you see blue sky because all the other colors in the spectrum up until blue and purple are scattered away. This is known as the Rayleigh effect. We usually don't ...

Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 ...

From intelligence gathering to internet usage to navigation, satellites are used daily across the globe. However, their activity is causing serious issues. In February, a team of researchers from ...

The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a ...

With the aurora at its brightest in years, there’s never been a better time to see the Northern Lights, and a Norway cruise takes you right to the heart of the action ...

"Atmospheric rivers" are large-scale extreme weather systems that are making headlines more frequently. When viewed in satellite images, they appear just as described—like rivers in the sky. Though ...