"On Sunday, July 31, 2011, when Expedition 28 astronaut Ron Garan aboard the International Space Station looked out his window, this is what he saw: the moon. And, he saw it 16 times. Said Garan, "We had simultaneous sunsets and moonsets." For Garan and the rest of the station crew, this extraordinary event is a daily occurrence. Since the station orbits the Earth every 90 minutes, each day the crew experiences this about 16 times a day."
Last week, Light Years wrote about NASA Visualization Explorer , a new, free Earth science app developed by the Goddard Space Flight Center. Currently, NASA Viz is only available for iPad.
Here’s a look at 5 other must-have NASA apps for iPhone, iPad, and Android that are all available for free:
A spot on the face of the sun cut loose with an impressive eruption Tuesday, but observers don't think it will amount to much on Earth.
Tuesday's coronal mass ejection spewed tons of gas and radioactive material into space in the general direction of Earth. (You can watch a video of it here.) The solar material is expected to reach Earth sometime Friday, when it may trigger spectacular polar light shows, said Dr. Tony Phillips of Spaceweather.com. Ejections of this size can also cause minor radio interruptions in polar regions, according to the site.
Light Years strives to tell the stories of science research, discovery, space and education. This is your go-to place on CNN.com for today’s stories, but also for a scientific perspective on the news and everyday wonders. Come indulge your curiosity in all things space and science related, brought to you by the entire CNN family.
July 19thAtlas V launch of US DOD MUOS-2 satellite, notable for large "551" config of Atlas
Aug 3rdJapanese HTV-4 flight to ISS on cargo supply mission
Aug 14thSpaceX launch of Canadian satellite in the first launch from their new Vandenberg facility, and first launch of upgraded Falcon 9 v1.1 launch vehicle
Aug 28thDelta IV Heavy launch of NROL-65 spy satellite
SeptemberSoyuz TMA-08M flight returning Expedition 36 crew from ISS to Earth (Kazakhstan)
Sept 12thOrbital Sciences maiden flight of Cygnus cargo vehicle on Antares rocket to ISS
Sept 25thSoyuz TMA-10M flight launching Expedition 38 crew to ISS
Dec 9thSpaceX Dragon launch by Falcon 9 v1.1 on CRS-3 cargo supply mission to ISS
recurringfirst powered test flights of Scaled Composites' SpaceShipTwo commercial vehicle, to be used by Virgin Galactic for sub-orbital tourism