Spacecraft spies Saturn, Mars, Earth

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.

Sunrays seen from Chile

Crepuscular rays, sometimes called sunrays, above the famous volcano Licancabur on the border between Chile and Bolivia.

Hubble spies a comet’s rotating jet

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.

Mars oppositions 2010 – 2022

Here's why 2016 is an awesome year for Mars, and why 2018 will be even better.

New Hubble image of Mars

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.

Milky Way over the Outer Banks

Jeff Berkes captured this image earlier this month, during a night sky photography workshop.

Moon halo, stars, planet over Chile

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.

Acadia at 3 a.m.

Tom Wildoner captured this view on May 12 in Maine's Acadia National Park. See bright Mars on the right.

Where red Mars looks blue

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! May 9, 2016 transit of Mercury

Photos from the EarthSky community of the May 9, 2016, transit of Mercury across the face of the sun. Thanks to all who posted!