Unique spine found in 240-million-year-old fish fossil

A newly-discovered backbone structure in a well-preserved 240-million-year-old fossil fish reveals an inflexible and slow swimmer, an evolutionary dead end.

New idea for how Earth’s core formed

An iron melt network helped grow Earth's core, a Stanford study suggests

Signs of water detected in exoplanet’s debris

The remains of a water-rich rocky exoplanet have been discovered outside our solar system orbiting a white dwarf star 170 light years away.

Star trails, moon trail, over Monument Valley

The bright light in this 25-minute exposure by Victor Goodpasture is the moon.

Juno craft, headed for Jupiter, resumes full flight operations

After a temporary glitch that occurred after Juno's flyby of Earth on Wednesday - and after a short period in safe mode - the Jupiter-bound craft is fully functioning again.

Thousands flee as Cyclone Phailin approaches India’s east coast

Cyclone Phailin is now officially the strongest storm ever measured in the Indian Ocean. It is striking India's east coast today.

Comet-chasing mission Rosetta: 100 days to wake-up

Rosetta will wake up soon from deep-space hibernation to reach the comet it has been cruising towards for a decade.

Video: Thermal images of lava spewing from an erupting volcano

A thermal camera standing 250 meters away from an active volcanic vent captured this video of molten lava spewing from Italy's Stromboli volcano.

New device harnesses sun and sewage to produce hydrogen fuel

A novel device that uses only sunlight and wastewater to produce hydrogen gas could provide a sustainable energy source.

Seljalandsfoss waterfall in south Iceland

The rock outcropping behind the Seljalandsfoss waterfall lets you walk all the way around the fall. But ... you'll get wet.