Seen from around the world on the nights of March 7 and 8, the moon is moving through the constellation Leo the Lion, past the bright star Regulus, the Lion's Heart.

Standing wave clouds form when wind blows over a mountain.

Juno arrived at Jupiter in 2016. It's in a 53-day orbit around the planet. Close sweeps past the planet are called "perijoves" (peri means "near"). Here are some spectacular images from the most recent sweep, Perijove 25, in February.

It's OK to feed wild birds. Here are some tips for doing it the right way from a wildlife ecologist.

This just in ... a new super-cool composite from Curiosity on Mars. The panorama contains more than 1,000 images taken last Thanksgiving and assembled over the past few months ... 1.8 billion new pixels of Martian landscape!

Let tonight's moon show you the Gemini twins, Castor and Pollux, as well as Procyon, aka the Little Dog Star.

Circumzenithal arcs have been described as upside-down rainbows or "a grin in the sky." They're wonderful! See photos here.

Physicists at MIT analyzed data from earlier experiments in particle accelerators, in order to probe the workings of the strong nuclear force that operates inside atoms. Their work sheds light on this force - one of the 4 fundamental forces of nature - and also illuminates the structure of a neutron star’s core.

Were dinosaurs warm-blooded or cold-blooded? According to a new study that analyzed the chemistry of dinosaur eggshells, the answer is "warm."

A new study by researchers at Cambridge University suggests that the giant exoplanet K2-18b - a mini-Neptune - may be more potentially habitable than previously thought.