Commander Chris Hadfield discovered the leaking ammonia on Thursday.
Credit Maxim Shipenkov / Associated Press
Astronauts aboard the International Space Station will undertake a spacewalk Saturday morning to try to repair a leak in their cooling system.
The leak appears to be ammonia used in a power supply. It was spotted midmorning on Thursday. Commander Chris Hadfield reported seeing "a very steady stream of flakes or bits" floating away from the station. On the ground, mission control noticed a steady drop in ammonia levels on one of the station's eight power channels. The same channel had problems back in November of 2012.
Flash floods followed heavy rains in northern India in September.
Credit AFP/Getty Images
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's Hubble Space Telescope took this close-up of the red planet Mars in 2007, when it was just 55 million miles away.
Credit NASA / UPI/Landov
Here's how to become famous.
Send your work to Mars!
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.