National Aeronautics and Space Administration

Astronomers have unveiled what is likely the first picture of a planet around a normal star similar to the Sun.

While browsing through Cassini images of Saturn's moon Titan, astronomer Mike Brown and some colleagues noticed a recurring pattern of clouds appearing over the frigid moon's north pole.

Researchers, students and professionals from around the world gathered in July at the NASA Lunar Science Conference to discuss the future of robotic and human exploration of the moon.

A new study shows that early dinosaurs survived two mass extinctions before they became dominant on Earth. Interestingly, it appears that their survival may have been based on luck alone.

A new study of carbon in seafloor sediments is helping scientists better understand the timing of life's origin on Earth. The findings may also change our assumptions about the history of Earth's carbon cycle.

Greetings, fellow SkyWatchers! It's big… It's bright. It's undeniably the Moon. So what are we going to do this weekend? Why, study of course! We'll take a look at some history, some mystery and even some cool variability that can be studied without any special equipment. Are you ready to journey into the night?

A warning from the National Weather Service is never to be taken lightly, and the residents along Galveston Bay in Texas heard a "leave or perish" warning as Hurricane Ike approaches the Texas coast. About 3.5 million people live in Ike's path.

A team working high in the Peruvian Andes has discovered how microbes swiftly colonize barren soils uncovered by melting glaciers. The study shows how microbes are able to establish themselves in one of Earth's most extreme environments, and how these unique organisms are adapting to climate change.

To improve hurricane forecasting, NASA engineers are spending time in a spooky room where 'no one can hear you scream.'

The burning of fossil fuels -- notably coal, oil and gas -- has accounted for about 80 percent of the rise of atmospheric carbon dioxide since the pre-industrial era. Now, NASA researchers have identified feasible emission scenarios that could keep carbon dioxide below levels that some scientists have called dangerous for climate.