Earth's moon is both the brightest and the largest object in the night sky, in terms of apparent size, making it a ...

Some galaxies eject powerful streams of charged particles—jets—from their centers into space. The prominent jet of Messier 87 ...

February's full "Snow Moon" will be at its fullest on Sunday, Feb. 1, and will be best seen at moonrise. It will appear just ...

Today, an estimated 2.2 billion people still have either limited or no access to the internet, largely because they live in ...

After sitting dormant for more than a decade, a $1B gas-fired power plant near Moundsville, W.Va., is moving forward again.

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

Already recognized for its excellence and even adopted for operational weather forecasting, the European Space Agency's Arctic Weather Satellite has now fulfilled its most important role. This small ...

Learn how to find Sirius and Procyon in the evening sky this week. Step-by-step guide includes constellation positions, companion stars and observing times.