The Earth's wettest regions are likely to get wetter while the most arid will get drier due to warming of the atmosphere caused by increased levels of carbon dioxide, according to a new NASA analysis of more than a dozen climate models.
NASA is raising awareness for its upcoming launch of the Mars Atmosphere and Volatile Evolution spacecraft with its Going to Mars project. The MAVEN spacecraft is scheduled for launch this November, to study the Red Planet's upper atmosphere; the craft will examine why Mars lost its atmosphere, and how that catastrophe affected the history of water there.
A new video reveals just how close NASA came last year to losing its $500 million Fermi Gamma-ray Space Telescope in a narrowly averted collision with a defunct, Cold War-era Soviet spy satellite.
On March 29, 2012, Julie McEnery, the project scientist for Fermi, received an automatically generated email warning that the two satellites were due in just a few days to pass within 700 feet of one another as their respective orbits crossed.