Roger! We Have a Liftoff! January 28, 2013Posted by jtintle in Planets.
Tags: AIA science team, EVE science team, HMI science Team, NASA, Solar Dynamics Observatory, Sun
A solar prominence arched up and then erupted out from near the Sun’s surface (Jan. 23, 2013). SDO observed the event, also associated with a coronal mass ejection, in extreme ultraviolet light as it evolved over seven hours. The strand of solar plasma appeared to perform a somersault as it expanded and disappeared into space. The disruption to the magnetic fields in the area generated the coiling and spreading wave-like action below the site of the event. Solar prominences are unstable clouds of cooler gases suspended above the Sun’s surface by magnetic forces
Solar Dynamics Observatory, NASA, the AIA, EVE, and HMI science teams
From Night to Day to Night Again January 26, 2013Posted by jtintle in Space Fotos.
Tags: "The Gateway to Astronaut Photography of Earth.", Earth, Image Science and Analysis Laboratory, International Space Station, Johnson Space Center, NASA
This video was taken by the crew of Expedition 34 on board the International Space Station. The sequence of shots was taken on January 3, 2013 from 11:43:46 to 15:49:31 GMT, on a pass from northwestern Australia, making two complete orbits to eastern Quebec, near the Gulf of St. Lawrence. This fast-paced video features the ISS completing two and a half orbits around the Earth, crossing the terminator line several times in the process. The video begins as the ISS is in darkness, and as the moon rises on the left side of the video, the ISS begins to pass over into daylight. Clouds mostly obscure the view during this first daylight pass with the exception of the Caucasus and Elburz Mountains just before the terminator. The ISS slips back into night as the moon again rises in the left side of the video. As the Station flies back into daylight, the ISS flies over Central America, the Caribbean Sea, and Cuba and Florida before flying over the northern Atlantic Ocean. Most of Western Europe is under cloud, and the first land that can be seen is the Alps Mountains and Croatia. The ISS then passes over the terminator line again into darkness as the moon rises in the left side of the video. As the ISS passes back over into daylight, clouds obscure most of the Earth until near the end of the video, when it passes over the Baja Peninsula and the southwestern United States.
Image Science and Analysis Laboratory, NASA-Johnson Space Center. “The Gateway to Astronaut Photography of Earth.”