Rolling stones on Mars, seen from orbit

Rolling stones on Mars. An image from the ESA/Roscosmos ExoMars Trace Gas Orbiter shows a cliff-face on Mars. Boulders have rolled down the cliff.

After the Boulder fire, a corona around the sun

Corona around the sun, caused by thin clouds in front of the sun, or perhaps pollen, after the devastating Marshall Fire in Boulder County, early January 2022.

Video: Shielded versus unshielded lighting

A new video gives a dramatic demonstration of shielded versus unshielded lighting. Remember to buy outdoor lighting that preserves our night skies.

Crescent moon, crescent Venus

As Venus nears its passage between the Earth and sun on January 8-9, it appears in our sky as a very thin crescent. Photos and insights here.

10 best northern lights photos of 2021

The blog “Capture the Atlas” announced its 2021 Northern Lights Photographer of the Year contest. You can see 10 of the best aurora photos in the world here.

Webb launch photos from the EarthSky community

EarthSky community members captured fabulous images of the James Webb Space Telescope as it rocketed into space on its journey to L2.

Photos: This week’s moon and planets after sunset!

Favorite photos - planets and moon - from the EarthSky community during the week of December 6 to 9, 2021. What a beautiful alignment of worlds!

Photos and video: December 4 total solar eclipse

Photos and video, December 4, 2021, total solar eclipse. It was visible along a narrow path - the path of totality - that crossed Antarctica.

Rare moon halo photo, captured during lunar eclipse

Eliot Herman in Tucson, Arizona, took an incredibly rare moon halo photo during the partial lunar eclipse on November 19, 2021.

Lunar eclipse photos November 18-19, 2021

A selection of lunar eclipse photos from the EarthSky Community. Did you see it? It was a deep partial eclipse ... almost total!

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