When can you see a daytime moon?

I saw the moon in a blue sky. Why? How can this happen? I thought the moon was visible only at night!

Video: Lunar halo seen over Israel on January 27, 2013

Time-sequence video showing a lunar halo form. The moon with its halo appears to drift as Earth turns beneath the sky. From our friends at Bareket Observatory.

Video: Record-setting asteroid flyby in February, 2013

2012 DA14 is about half the size of an American football field. It'll fly closer to Earth than some artificial satellites on February 15, 2013.

Ride along with ISS, from night to day to night again

Beautiful astronaut video from aboard the International Space Station, showing day and night on Earth, as ISS passes between the two twice.

Death Valley Dreamlapse during peak of 2012 Geminid meteor shower

Gorgeous video made at the peak of the 2012 Geminid meteor shower over Death Valley. Bonus points for identifying the visible planets.

Photos from friends: First full moon of 2013

Beautiful photos of January 2013 full moon, as captured by EarthSky Facebook friends. Thank you all.

Deep Space Industries joins the asteroid gold rush

Deep Space is the second company in less than a year to say it will join the rush to the rich fields of water and precious metals in near-Earth asteroids.

Awesome photos of January 21 Jupiter-moon conjunction, and more

The best moon and Jupiter photos from late last year, plus the wonderful sight of these two brilliant worlds on January 21, 2013. Wow!

How Titan’s weather has changed its surface

Members of Cassini spacecraft radar team have made the first quantitative estimate of how much the weather on Titan has modified its surface.

Space images of the week

A compilation of the best space photos and images from earthsky.org for the week of January 14-18.