Comet PANSTARRS closest to the sun in early March

Whether you've managed to glimpse the comet or not, you'll love this video showing PANSTARRS as seen from space. Bright dot on the right is Earth!

Surprises in Venus’ south pole vortex

Behold the erratic motion of the south pole vortex of Venus. And a word about vortices in the atmosphere of other planets in our solar system, including Earth.

Meteor lit up sky over US east coast on March 22

People from North Carolina to Maine, and as far inland as Ohio, saw a very bright meteor streak across the sky on March 22.

Help name new planet orbiting Alpha Centauri B. Just $4.99.

Uwingu has announced "a contest for the people of Earth" to name the planet recently discovered to be orbiting Alpha Centauri B.

See Jupiter near moon in daytime sky on March 17 or 18

March 2013 offers the best chance for the next 12 years to see Jupiter near the moon in a blue daytime sky.

See a mountain on Mars, as if under Earth-like lighting

NASA's Curiosity rover has acquired images of Mount Sharp on Mars since it set down nearby in August. The latest shows what Mount Sharp would look like on Earth.

Geomagnetic storm and aurora alert this weekend

The March 15 CME will reach Earth in one to two days. High latitude and even middle latitude auroras possible this weekend.

Good NASA video on Comet PANSTARRS

NASA is calling PANSTARRS a sunset comet. This video will answer all your questions about how to see it.

Video: Comet PANSTARRS and a young moon

In this sped-up video from Fred Espanek - aka Mr. Eclipse - Comet PANSTARRS and a young moon set in the west behind some Arizona mountains.

ALMA Telescope officially goes online

When running at maximum observational power, ALMA will see the universe in a resolution 10 times greater than that of Hubble Space Telescope. Its altitude - above 40% of Earth's atmosphere - is part of what makes it so powerful.