Explore the mystery of why stars are often not visible during rocket launches, moon landings, or in videos from the ...

If you look eastward at the same hour for two nights in a row, you’ll find that the stars seem to be in the same place. But they're not, and this movement becomes apparent if you continue observing at ...

Some stars and constellations are ever-present in the night sky; Polaris, for example, has served as a steady guiding light for millennia in the Northern Hemisphere. But if you look closely at the sky ...

As a space scientist, every time I go outside with my family, I tell my children to look up at the sky. The front door of our home looks southeast, and on winter nights the constellation Orion hangs ...