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X-flare of Saturday, March 29
Solar flares are short-lived but powerful bursts of radiation. They are our solar system’s largest explosive events, lasting minutes to hours on the sun’s surface.
March 30, 2014
Early morning moon and Venus
GregDiesel Landscape Photography captured the moon and Venus yesterday morning.
March 28, 2014
MoonDay
The waning crescent moon on the morning of March 26, by VegaStar Carpentier Photography.
March 27, 2014
When the moon sweeps past Venus
This image is from a year ago. But if you look in the eastern, predawn sky around now, you'll see the moon near Venus again.
March 26, 2014
Vortex star trails
Our friend Sergio Garcia Rill captured a photo in Arches National Park in eastern Utah, then processed it in a way he'll explain to you.
March 25, 2014
Saturn’s largest and second-largest moons
The Cassini spacecraft captured this image on June 16, 2011. These are two of Saturn's moons - the largest moon Titan and second-largest moon Rhea.
March 23, 2014
Night scene from Kvænangsfjellet in Norway
A spring color palette, and yet ... so chilly.
March 21, 2014
Death of a snowflake
On the first day of spring for us in the Northern Hemisphere, check out this series taken yesterday of a snowflake, melting. Happy spring, everyone!
March 20, 2014
Amazing green flash atop sun pyramid
The green flash is an optical phenomenon you can see shortly after sunset or before sunrise. For a second or two, the upper rim of the sun flashes green.
March 19, 2014
Last night’s moon, planet Mars, star Spica
Cath Cooper - and others in EarthSky's community - caught last night's beautiful waning gibbous moon, red planet Mars and blue-white Spica, brightest star in Virgo.
March 18, 2014
