Aug. 11, 2015
This week, Earth passes through a stream of debris from Comet Swift-Tuttle, source of the annual Perseid meteor shower. Forecasters say the show could be especially good this year because the Moon is nearly new when the shower peaks on Aug. 12-13.
July 27, 2015
The second full Moon of July is just around the corner. According to modern folklore, it is a "Blue Moon."
July 21, 2015
Predicting floods is notoriously tricky. Sponsored by NASA, a new computer tool known as the "Global Flood Monitoring System" is improving forecasts.
July 10, 2015
Advances in the understanding of how fluids behave in low gravity is a key to an excellent cup of coffee in space.
June 26, 2015
With support from NASA, the EPA has developed an app to track algae that can threaten fresh water supplies.
June 26, 2015
As the Hubble Space Telescope celebrates its 25th anniversary, scientists are reflecting on the key role astronauts played in allowing the telescope to continue making great discoveries.
June 11, 2015
Venus and Jupiter are converging for a must-see close encounter at the end of June. It could be the best backyard sky show of 2015.
May 23, 2015
The common roundworm shares a surprising amount of genetic material with humans - enough, in fact, to make them good substitutes for astronauts in low-gravity medical studies.
May 15, 2015
On Earth, a fast runner takes a few hours to complete a marathon. On Mars, it's taken 11 years. NASA's Opportunity rover crossed that finish line in 2015.
May 11, 2015
NASA's MAVEN spacecraft has detected widespread auroras on Mars.