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Archive for February, 2012

Astronomers using ESA’s Herschel and NASA’s Spitzer space telescopes have detected surprisingly rapid changes in the brightness of embryonic stars within the well-known Orion Nebula.

Saturn’s largest moon, Titan, looks small here, pictured to the right of the gas giant in this Cassini spacecraft view. Titan (3,200 miles, or 5,150 kilometers across) is in the upper right. Saturn’s rings appear across the top of the image, and they cast a series of shadows onto the planet across the middle of the image. The moon Prometheus (53 miles, or 86 kilometers across) appears as a tiny white speck above the rings in the far upper right of the image. The shadow cast by Prometheus can be seen as a small black speck on the planet on the far left of the image, between the shadows cast by the main rings and the thin F ring. The shadow of the moon Pandora also can be seen on the planet south of the shadows of all the rings, below the center of the image towards the right side of the planet. Pandora is not shown here. This view looks toward the southern, unilluminated side of the rings from about 1 degree below the ringplane. The image was taken with the Cassini spacecraft wide-angle camera on Jan. 5, 2012 using a spectral filter sensitive to wavelengths of near-infrared light centered at 752 nanometers. The view was acquired at a distance of approximately 426,000 miles (685,000 kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 20 degrees. Image scale is 23 miles (37 kilometers) per pixel on Saturn. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA’s Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo. Image credit: NASA/JPL-Caltech/Space Science Institute

Discover more about our planet with the Earth from Space video programme. In this special edition, Henri Laur, Envisat Mission Manager, joins the show ahead of the satellite’s tenth birthday.

Watch the replay

An Expedition 30 crew member aboard the International Space Station took this nighttime photograph of much of the Atlantic coast of the United States. Large metropolitan areas and other easily recognizable sites from the Virginia/Maryland/Washington, D.C. area are visible in the image that spans almost to Rhode Island. Boston is just out of frame at right. Long Island and the New York City area are visible in the lower right quadrant. Philadelphia and Pittsburgh are near the center. Parts of two Russian vehicles parked at the orbital outpost are seen in left foreground. This image was taken on Feb. 6, 2012. Image Credit: NASA

NASA has signed a one-year contract option with Jacobs Technology, Inc., of New Orleans to continue manufacturing support and facilities operations at the Michoud Assembly Facility in eastern New Orleans.

A worldwide chain of Galileo ground stations on some of the remotest sites on Earth is nearing completion ahead of this year’s launch of two more satellites.

NASA’s Hubble Telescope captured an image of Eta Carinae. This image consists of ultraviolet and visible light images from the High Resolution Channel of Hubble’s Advanced Camera for Surveys. The field of view is approximately 30 arcseconds across. The larger of the two stars in the Eta Carinae system is a huge and unstable star that is nearing the end of its life, and the event that the 19th century astronomers observed was a stellar near-death experience. Scientists call these outbursts supernova impostor events, because they appear similar to supernovae but stop just short of destroying their star. Although 19th century astronomers did not have telescopes powerful enough to see the 1843 outburst in detail, its effects can be studied today. The huge clouds of matter thrown out a century and a half ago, known as the Homunculus Nebula, have been a regular target for Hubble since its launch in 1990. This image, taken with the Advanced Camera for Surveys High Resolution Channel, is the most detailed yet, and shows how the material from the star was not thrown out in a uniform manner, but forms a huge dumbbell shape. Eta Carinae is one of the closest stars to Earth that is likely to explode in a supernova in the relatively near future (though in astronomical timescales the “near future” could still be a million years away). When it does, expect an impressive view from Earth, far brighter still than its last outburst: SN 2006gy, the brightest supernova ever observed, came from a star of the same type, though from a galaxy over 200 million light-years away. Image Credit: ESA/NASA

NASA’s Office of Education will join the Association of Public and Land-grant Universities and the American Association for the Advancement of Science in hosting a Minority Males in STEM Symposium on Feb. 28.

Students from Texas A&M University visited the Orion Medium Fidelity Mockup as part of the SSANS, or Students Shaping America?s Next Spacecraft, program. The students, who are Industrial Engineering majors at Texas A&M, partnered with the Orion Program on two senior design projects: Orion Lighting System hardware for the Orion Full-scale Mockup and the Orion Budget and Planning Project. During their visit on Feb. 22, 2012, the students presented their work as part of the Preliminary Design Review at the Johnson Space Center in Houston. While at the center, they had an opportunity to see the Orion mockups and tour center facilities. Image Credit: NASA

NASA has presented its premier honor for quality and performance, the George M. Low Award, to two companies that share a commitment to teamwork, technical and managerial excellence, safety, and customer service.