Watch out for the Super Harvest Moon

For the first time in almost 20 years, northern autumn is beginning on the night of a full Moon. The coincidence sets the stage for a "Super Harvest Moon" and a must-see sky show to mark the change of seasons.

Solar Storms can Change Directions, Surprising Forecasters

Researchers using data from NASA's STEREO spacecraft have found that solar storms don't always travel in a straight line. This adds a surprising new twist to the science of space weather forecasting...

Mars Methane Lasts Less than a Year

A new study indicates that methane in the atmosphere of Mars lasts less than a year. Methane is replenished from localized sources that show seasonal and annual variations. This pattern of methane production raises questions as to whether the methane comes from geological activity - or biological processes...

College Students Help Develop Small Satellite with Big Plans

Firefly will focus on the mystery of near Earth gamma ray flashes, a little understood phenomenon linked to lightning, which scientists hope to answer with this pint-sized satellite...

NASA Study Shows Desert Dust Cuts Colorado River Flow

Snowmelt in the Colorado River basin is occurring earlier, reducing runoff and the amount of crucial water available downstream. A new study shows this is due to increased dust caused by humans in the region during the past 150 years...

Earth to Have Closest Encounter With Jupiter until 2022

Been outside at midnight lately? There's something you really need to see. Jupiter is approaching Earth for the closest encounter between the two planets in more than a decade--and it is dazzling...

NASA's Mars Reconnaissance Orbiter Resumes Observations

NASA's Mars Reconnaissance Orbiter put itself into a precautionary standby mode after experiencing a spontaneous computer reboot on Sept. 15...

Antarctic Ozone Hole 2010

The hole in the ozone layer typically reaches its largest area in late September or early October, though atmospheric scientists must wait a few weeks longer to pinpoint the actual maximum...