EarthSky 90-Second Podcast

That glow over the unlit part of a crescent moon - called earthshine - is light reflected from Earth.

On the night of March 28, 2013, see the moon, the star Spica and the planet Saturn in the east by early to mid-evening.

The March 2013 full moon will be out all night on March 26-27, shining in front of the constellation Virgo the Maiden.

The March equinox signals the beginning of spring in the Northern Hemisphere and autumn in the Southern Hemisphere.

This Sunday night, use the moon to find Jupiter, Aldebaran and the Pleaides star cluster!

Researchers working near him thought another person was talking and were surprised to find the voice was coming from the whale.

It's no longer possible to think of time as ticking along at a constant rate since the universe was born, separate from our own human perceptions.

Moonless February and March evenings are the best time to see zodiacal light, that glowing pyramid of light in the west after dusk.

Depending on the temperature and humidity of the air where the snowflakes form, the resulting ice crystals will grow into a myriad of different shapes.

We in the Northern Hemisphere call tonight's February 25 full moon the Wolf Moon, Snow Moon or Hunger Moon.

Comet PANSTARRS is expected to become visible to Northern Hemisphere viewers with the unaided eye in March, 2013. Comet PANSTARRS viewing guide here.

Artist's impression of 50,000 Quaoar, a small rocky world with its own moon, a billion kilometers beyond Pluto.

The asteroid appeared from Earth to be moving quickly in front of the stars as it passed safely within the moon's distance from Earth on Friday, February 15.

That dazzling star-like object near the February 17 moon is actually the planet Jupiter, fifth planet outward from the sun.

Sun pillars, or light pillars, are shafts of light extending from the sun or other bright light source. They're caused by ice crystals drifting in Earth's air.