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EarthSky

EarthSky

The EarthSky team has a blast bringing you daily updates on your cosmos and world. We love your photos and welcome your news tips. Earth, Space, Human World, Tonight.

Crew Dragon spacecraft docked with ISS.

SpaceX Crew Dragon is docked with ISS

Posted by in Human World | Space | 1 day ago
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History was made again Sunday, with the successful docking of SpaceX Crew Dragon with the International Space Station. Astronauts Bob Behnken and Doug Hurley are aboard. There are more activities to come, which you can watch online. Links here.

AIM spots season’s 1st Arctic noctilucent clouds

Posted by in Earth | Today's Image | 2 days ago
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NASA’s AIM spacecraft spotted wisps of the 2020 season’s 1st noctilucent, or night-shining, clouds over the Arctic on May 17.
A wavering line of dots, in 2 colors.

ALMA spots the twinkling heart of our Milky Way

Posted by in Space | 6 days ago
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Astronomers used the ALMA telescope in Chile to observe irregular flickers in millimeter-waves from the center of our Milky Way galaxy: the twinkling heart of the galaxy.

Deneb, tail of Cygnus the Swan

Posted by in Tonight | 2 weeks ago
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Deneb marks the Tail of Cynus the Swan. At the same time, it marks the head of a crosslike pattern – an asterism – known as the Northern Cross.

Seen from space: Covid-19 and the environment

Posted by in Earth | Human World | 2 weeks ago
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Satellites see environmental changes during the coronavirus lockdown, including reduced pollution.

Satellite data show 30% drop in air pollution over northeast U.S.

Posted by in Earth | Human World | 2 months ago
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Satellite data show drop in air pollution over the major metropolitan areas of the U. S. Northeast.

Use Big Dipper to find North Star.

Use the Big Dipper to find the Little Dipper

Posted by in Tonight | 2 months ago
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Polaris – aka the North Star – marks the end of the Little Dipper’s handle. The 2 outer stars in the bowl of the Big Dipper always point to Polaris.
Sky chart of the Big Dipper, Arcturus and Spica

Follow the arc to Arcturus, drive a spike to Spica

Posted by in Tonight | 2 months ago
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If you only ever learn one star mnemonic, make it this one!

April 3 is John Burroughs’ birthday

Posted by in Human World | 2 months ago
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John Burroughs – born in 1837 – was one of the 1st nature writers. He said: “I go to nature to be soothed and healed, and to have my senses put in order.”
Side view of a large diamond.

April’s birthstone is the diamond

Posted by in Earth | Human World | 2 months ago
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Happy birthday, April babies! Your birthstone, the diamond, is the rich cousin of graphite.