Antarctic sea ice for July 2022 lowest on record
Antarctic sea ice for July 2022 was lowest in the 44-year satellite record. Arctic sea ice extent for July 2022 was 12th-lowest on record.
Astronomy Essentials
Meteors in moonlight: 6 tips for 2022’s Perseids
Meteors in moonlight. It's not optimal, but it happens! Here's how to minimize the moon and optimize the Perseid meteor shower in 2022.

Sun activity: Hello again, STEVE

Sun activity is currently low. But Monday’s surprise geomagnetic storm brought us many sightings of STEVE. See a video here.
Human World

Don Machholz, 1952-2022

We are heartbroken to announce the passing of Don Machholz, discoverer of 12 comets. He was also a writer for EarthSky ... and our friend.

See the moon approach Saturn on August 9 and 10

Watch a bright waxing gibbous moon approach Saturn on the evenings of August 9 and 10, 2022. Saturn is then in the faint constellation Capricornus.

SpaceX Starlink launches for August

SpaceX has seven Starlink launches scheduled for the month of August 2022. Watch the second one taking place at 21:40 UTC on August 12, 2022.

Venus, Castor and Pollux line up on August 10

On the morning of August 10, 2022, notice our brightest planet, Venus, forming a line with the two bright Gemini stars, Castor and Pollux.

See Mars and Pleiades on August 10, morning

On the morning of August 10, 2022, look for Mars in the sunrise direction near the beautiful Pleiades star cluster. Nearby is reddish Aldebaran.
Human World

August birthstone: peridot or sardonyx

The August birthstone can be green, crystalline peridot or colorful, banded sardonyx. Both have long histories. Take your pick, August babies!

Can meteors make a sound? Scientists say yes

Is it possible to hear a meteor? Some people report hearing meteors make a sizzling sound. Scientists explain how you can hear a meteor.