Polar bears aren't white, strawberries aren't berries and the Earth isn't round—we'll have you rethinking everything you thought you knew! Mind-blowing facts you have to read to believe Did you know ...

A partial solar eclipse. Numerous eye-catching planetary get-togethers. Saturn's rings perform a vanishing act. In the upcoming year, stargazers can anticipate an array of celestial wonders to get ...

The Department of Physics and Astronomy at the University of Delaware is a vibrant hub of scientific inquiry, encompassing a diverse range of research areas that push the boundaries of human ...

Editor’s note: This article was originally published Aug. 13, 2025, and has been updated to include new text and illustrations featured in the January 2026 issue of Astronomy. Using an artificial ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

"Dark matter can be red hot when it is born, but still have time to cool down before galaxies begin to form." ...