How to watch tonight’s eclipse online

On the wrong part of Earth for tonight's eclipse? Clouded out? Here are links to online viewing.

Rosetta’s comet has daily water-ice cycle

"We found a mechanism that replenishes the surface of the comet with fresh ice at every rotation. This keeps the comet 'alive'," said a researcher.

Milky Way’s black hole is more active!

The black hole at the Milky Way's heart recently blasted out 10 times its normal rate of X-ray flares. Is it due to the close passage of a mysterious, dusty object?

Supersonic stars reveal Milky Way’s heart

Harvard astronomers want to examine the radio waves from supersonic stars at the Milky Way's core, to learn more about this hidden region of space.

This date in science: India and Mars

Mars Orbiter Mission (MOM) is India's first interplanetary mission. It began orbiting Mars a year ago today. Mission goals - and spectacular images - here.

Watch an exoplanet orbit its star

A series of images has been made into a video, showing Beta Pictoris b moving through 18 months of its 22-year orbit around its star. Very cool!

Fact and fiction of Martian dust storms

Andy Weir’s book The Martian - soon to be released as a movie - begins with a huge dust storm that strands a fictional astronaut on Mars. Could it happen?

Mercury rotates faster than expected

Analysis of data from the MESSENGER spacecraft reveals that, along with the sun, distant Jupiter may be influencing Mercury's orbit and spin.

Global ocean on Saturn moon Enceladus

Active water and ice geysers on Enceladus now are believed to spew from a planet-wide, liquid ocean beneath this moon's icy crust.

New Pluto images wow scientists

These latest Pluto images from New Horizons have scientists stunned, says NASA. It’s not just the breathtaking views, but the strangely familiar, arctic look.