Six amazing birds

Crows, falcons. gannets, hummingbirds, macaws .... and turkeys. Here's what makes these six birds so cool

Video: Which is healthier, fresh or frozen?

You assume that fresh vegetables are more nutritious than frozen, right? Maybe not ...

Comet ISON, post-perihelion

Has a remnant of Comet ISON survived the close brush with the sun?

Experience Comet ISON’s encounter with the sun online

ISON's moment of truth is here - its closest approach to the sun - today. Here are some ways to experience it online.

Comet ISON on November 28

The field of view of the SOHO mission's LASCO C3 now fully shows Comet ISON.

Why scientists trained locusts to recognize odors

To learn more about how the brain can process multiple odors all at once, scientists trained locusts to respond to a specific smell.

Fiery drama of star birth and death in Large Magellanic Cloud

Places where hot new stars are born and die - and sculpt their surroundings into odd shapes - in the dwarf galaxy orbiting our own Milky Way.

Best photos, images, videos of Comet ISON

Now ISON cannot be seen from Earth, but it's coming into the field of view of a whole fleet of ESA and NASA space-based observatories.

Even if emissions stop, carbon dioxide could warm Earth for centuries

Even if carbon dioxide emissions came to a sudden halt, the carbon dioxide already in Earth's atmosphere could continue to warm our planet for hundreds of years, says a new study.

Google Earth reveals untold fish catches

Large fish traps in the Persian Gulf could be catching up to six times more fish than what’s being officially reported.