Double rainbow and autumn colors

Double rainbow, autumn colors, from our friend Juri Voit in Estonia.

Typhoon Usagi batters Philippines and Taiwan

Categorized on Thursday as a "super typhoon" at its peak, Usagi is the strongest cyclone so far in 2013. It's expected to weaken before striking Hong Kong on Sunday.

View from space: Greeley, Colorado before and after the flood

On September 20, Colorado's Office of Emergency Management reported the floods had impacted 17 counties, leaving 7 dead with 104 missing and more than 16,000 damaged homes.

Wired microbes turn sewage into electricity

A new way to generate electricity from sewage uses naturally occurring “wired microbes” as mini power plants to produce electricity as they digest plant and animal waste.

New rat genus discovered in the birthplace of the theory of evolution

A prominent tuft of spiny hair on the back, a white tail tip and three pairs of teats represent the unique set of characteristics describing a new genus of rat which has been discovered in the Moluccan province of Indonesia.

Best photos of Venus and Saturn after sunset

Venus and Saturn are in the same field of view of your binoculars from September 15 to 21. Look west after sunset. Plus ... check out these photos.

Best photos of past Harvest Moons

Gallery of favorite photos of the Harvest Moon from friends on Facebook and Google+. Thank you all for posting. Shine on, Harvest Moon!

Video: Queen meets string theory

String theory and Bohemian Rhapsody ... two great tastes that taste great together?

That awesome moment when you can kiss the moon

We saw many photos of full moons this week, but this one touched our hearts.

As ocean warms, Antarctica’s Pine Island Glacier thaws

“I think it is fair to say that the largest potential sea level rise signal in the next century is going to come from this area.” - Martin Truffer