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

Fossilized shells and bones uncovered at two sites in Colombia. Scientists date this ancient sea turtle's remains at 120 million years old.

A satellite view from Monday shows wildfires still burning in Oregon, Idaho, and Montana. The fires started in August.

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.

Scientists are studying the increasingly fast rate of summertime ice melt in Greenland. See a new NASA video, plus illustrations of the 2015 melt season.

India has reached for the stars with a successful launch of its first astronomy satellite. ASTROSAT carries India's version of the Hubble Space Telescope.

Mars is a desert world, but it's not completely dry. Scientists have found liquid water flowing on Mars.

Hadrosaur was a truly polar dinosaur that endured months of winter darkness and probably experienced snow.

This post explains lunar perigee - the moon's closest point to Earth - and includes dates of all closest and farthest moons for each month of 2015.

On the wrong part of Earth for tonight's eclipse? Clouded out? Here are links to online viewing.