M66 is a galaxy 36 million light-years away in the direction to our constellation Leo. A star exploded there 36 million years ago … and came into view in Earth’s sky this weekend.
A monstrous vortex sits at Saturn’s south pole. It’s not just beautiful. It also lets astronomers peer deep into Saturn’s dense atmosphere.
The European Space Agency used 7,000 satellite images – acquired from late 2015 through early 2016 – to make this mosaic of Africa.
Maybe you’ve seen Saturn and Mars close together in the sky recently? NASA’s Stereo-A probe caught Saturn and Mars … with Earth in between.
Crepuscular rays, sometimes called sunrays, above the famous volcano Licancabur on the border between Chile and Bolivia.
In March, Comet 252P/LINEAR passed exceedingly near the Earth. These images show the closest celestial object Hubble has observed, other than Earth’s moon.
These past weeks have been a fabulous time to view Mars, which swept closest to Earth on Mars 30. Best photos from the EarthSky community!
Here’s why 2016 is an awesome year for Mars, and why 2018 will be even better.
New Hubble Space Telescope image of Mars, in honor of the planet’s May 22 opposition, when our planet Earth will sweep between the Red Planet and the sun.
Proxima Centauri, one of three stars in the Alpha Centauri system, is our sun’s nearest known neighbor among the stars. It’s 4.22 light-years away.
Jeff Berkes captured this image earlier this month, during a night sky photography workshop.
Haloes around the moon happen when moonlight shines through tiny ice crystals in the upper air. Here’s a moon halo, with bright stars and Jupiter nearby.
Tom Wildoner captured this view on May 12 in Maine’s Acadia National Park. See bright Mars on the right.
Most images of Mars show colors homogenized by red dust and regolith. This infrared-red-blue color image shows Mars’ bedrock … and many colors.
Photos from the EarthSky community of the May 9, 2016, transit of Mercury across the face of the sun. Thanks to all who posted!
While preparing on Sunday to watch today’s transit – an event Mercury crosses the face of our sun – Helio C. Vital caught an airplane doing the same.
Meteor showers happen when Earth passes through a stream of icy debris left behind by a comet. The famous Comet Halley spawned last week’s Eta Aquarids.
First light of the morning and a perfectly still lake, just north of the Arctic Circle.
On May 2, 2016, Walter E. Elliot took this shot of clouds rolling over the channel that connects Michigan’s White Lake to Lake Michigan. Doesn’t it look like an oil painting?
Vast dust clouds stretch across a rich starfield in near the northern boundary of the southern constellation Corona Australis, the Southern Crown.
“Since three years ago, we have planned to shoot this photo. We went to the zone repeatedly but every time we got nothing … until now.” – Sergio Vindas