See Mars’ Grand Canyon in stunning new photos

ESA's Mars Express orbiter has taken some stunning new images of Mars' Grand Canyon, Valles Marineris. It is the largest canyon system in the solar system.

Webb reveals more record-breaking galaxies

Scientists are finding record-breaking galaxies in Webb images that may have existed when the universe was less than 200 million years old.

Freya the walrus is having the summer we all want

Freya the walrus has been relaxing in Norway since mid-July 2022 and has made a splash on social media.

Summer meteors 2022: Moon-free in late July and early August

Summer meteors 2022: full moon falls at the peak of the Perseids. Try watching for meteors in late July and early August.

Why aren’t Jupiter’s rings glorious, like Saturn’s?

Jupiter's rings are not nearly as dramatic as Saturn's. Why? A new study says that the planet's 4 largest moons are to blame.

Brilliant fireball over Texas on July 24

A brilliant fireball lit up the skies over Texas on the evening of July 24, 2022. If you witnessed it, click here for a reporting link.

Launches and spaceflight updates: Week of July 25, 2022

China launched an unknown payload on Friday (July 29, 2022). An uncontrolled re-entry was planned, for the 2nd time this month.

Moon near Venus on July 25 and 26 mornings

Watch for the waning crescent moon near Venus on the mornings of July 25 and 26, 2022. Beautiful! Red Aldebaran and the Pleiades show up, too.

Japan’s Sakurajima volcano erupts, prompts alert

Japan's Sakurajima volcano erupted at about 8:05 p.m. local time today (11:05 UTC; 6:05 a.m. CDT on Sunday, July 24, 2022). So far, 51 people have evacuated.

Why do corals glow? To lure their prey

Why do corals glow? Researchers in Israel and the U.S. say they use fluorescent colors to attract prey like plankton, solving a long-standing aquatic mystery.