The sun sends two CME’s towards Mercury

The joint ESA and NASA mission the Solar Heliospheric Observatory (SOHO) captured a series of four images of a coronal mass ejection (CME) escaping the sun on the morning of April 25, 2013.

Einstein was right – so far

Record-breaking pulsar takes tests of general relativity into new territory.

Video: Three years of the sun in three minutes

This video includes two eclipses by the moon, the largest flare of our current cycle, the Comet Lovejoy and the transit of Venus.

Video: Wringing out a washcloth on the ISS

Here's another way cool video of astronaut Chris Hadfield doing an everyday thing in zero gravity aboard the ISS. This time he's wringing out a wet washcloth.

Three CMEs in two days

On April 20th and 21st of 2013, NASA was able to capture three coronal mass ejections (CMEs) in two days!

See it! Lyrid meteor shower photos

For the past few days, our friends around the world have been out at night looking for meteors. Here are some of the great pics they've shared them with us!

Awesome! New image of Horsehead Nebula in infrared

Astronomers have used NASA's Hubble Space Telescope to photograph the iconic Horsehead Nebula in a new, infrared light to mark the 23rd anniversary of the famous observatory's launch aboard the space shuttle Discovery on April 24, 1990.

Are you ready for the Lyrid meteor shower?

Tips from an EarthSky community member on how to find a good location for the Lyrid meteor shower - and useful things to take with you if you decide to go out.

SN 1006: A colossal star explosion, 10 centuries later

SN 1006 is a supernova remnant, a cloud of star debris initiated by a colossal stellar explosion in the year 1006. The debris has been expanding outward that year.

Ultra-long gamma ray bursts from supergiant star explosions?

Astronomers meeting this week in Nashville hear a new theory about the longest gamma rays bursts.