Mosaics of Pluto and Charon, created from your photos sent to NASA during this summer's #PlutoTime campaign.

Your brain scans are quintessentially you, says a new Yale study.

Physicist John Beacom explains the mystery of neutrinos, the almost massless and almost noninteracting elementary particle.

Touching juxtaposition of a classic John Lennon song with a magnificent video of whales. Video by Jaimen Hudson.

Time will be 7 p.m. EDT this evening. People in a wide swath of U.S. mid-Atlantic states can see it, if skies are clear.

There's now a target date of 2030 for a manned mission to Mars. But how close are we, really, to becoming Martians?

Despite climate change, sea ice will continue to make the Northwest Passage too treacherous to be a regular Arctic shipping route for decades, says study.

U.S. landfall looks increasingly unlikely. "Historical" flooding possible in parts of the U.S. Southeast and Mid-Atlantic.

Sunday's supermoon, combined with an 18.6-year lunar cycle, caused high tides on both sides of the Atlantic this week. There were many flood warnings and alerts in effect in the UK on Tuesday night. In eastern North America, Tropical Storm Joaquin might combine with high tides to cause flooding.

Worst recorded years for U.S. wildfires are 2005, 2006, 2007, 2011 and 2012. This year has already joined that list, and wildfire season is still going strong.