Pluto-bound New Horizons crosses Neptune’s orbit

NASA says this is New Horizons' last major crossing en route to becoming the first probe to make a close encounter with distant Pluto on July 14, 2015.

Five finalists for Philae landing site on Rosetta’s comet

Five finalists named as potential landing sites this November for Philae lander in ESA's fabulous Rosetta comet mission. Comet 67P/Churyumov–Gerasimenko, here we come.

Back to the future with Neptune’s fascinating moon Triton

On the anniversary of Voyager 2's encounter with Neptune and Triton ... an awesome collection of restored Voyager 2 images, plus the link between Triton and Pluto.

Are tornado outbreaks on the rise?

A new study has found that dangerous tornado outbreaks in the U.S. are on the rise.

Longest lunar month of 2014 starts on August 25

The longest lunar month of 2014 starts with the August 25 new moon and ends September 24. All you need to know about the varying lengths of the lunar months, here.

Moon, Jupiter, Venus over Hong Kong

It was a glorious weekend for planet-watching. The moon waned and appeared lower in the east before dawn each day, sweeping past Venus and Jupiter.

Strong 6.0-magnitude earthquake rocks San Francisco Bay area

Strong earthquake struck San Francisco Bay area early on August 24, 2014. Power outages, moderate damage across region, closed highways, serious injuries, no deaths.

Aurora and reflection

In honor of the return of aurora season to Earth's northerly latitudes, here's the aurora borealis - northern lights - above Norway's Lyngen Alps.

Your toothpaste’s fluorine was formed in a star

Next time you're brushing you teeth, think on this: New research suggests that the fluorine in your toothpaste originates from the sun’s dead ancestors.

A trip down Canada’s Iceberg Alley

It's been a banner year for iceberg sighting in Iceberg Alley, the area off northeastern Newfoundland where the Titanic struck an iceberg and went down in April, 1912.