To celebrate the 40th anniversary of the United States’ Landsat Earth-observing program, NASA and the U.S. Geological Survey (USGS) are holding a contest that will offer winners customized satellite views of changing local landscapes.
Mississippi River Delta Basin (2011)
All U.S. citizens are eligible to enter the “My American Landscape: A Space Chronicle of Change” contest. Winners will … Read the rest of this article
Just weeks after celebrating its tenth year in orbit, communication with the Envisat satellite was suddenly lost on 8 April. Following rigorous attempts to re-establish contact and the investigation of failure scenarios, the end of the mission is being declared.
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Just weeks after celebrating its tenth year in orbit, communication with the Envisat satellite was suddenly lost on 8 April …
Research by NASA and international scientists concludes giant asteroids, similar or larger than the one believed to have killed the dinosaurs, hit Earth billions of years ago with more frequency than previously thought.
To cause the dinosaur extinction, the killer asteroid that impacted Earth 65 million years ago would have been almost 6 miles (10 kilometers) in diameter. By studying … Read the rest of this article
Optical, radar and laser observations of the Envisat satellite show that it is still in a stable orbit. Efforts to regain contact with the satellite have been under way since 8 April, when it unexpectedly stopped sending data to Earth.
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On 15 April, the French space agency CNES rotated the Pleiades Earth observation satellite to capture this image of Envisat. …
Last month, when the sun unleashed the most intense radiation storm since 2003, peppering satellites with charged particles and igniting strong auroras around both poles, a group of high school students in Bishop, California, knew just what to do. They launched a rubber chicken.
Camilla at ~124,800 feet on March 3, 2012.
The students inflated a helium balloon and used … Read the rest of this article
NASA will celebrate the 42nd anniversary of Earth Day this week with several live and online activities to engage the public about the agency’s mission to use space to explore and better understand our planet.
NASA will host three days of displays and presentations open to the public on the National Mall in Washington from Friday, April 20, through Earth … Read the rest of this article
ESA astronaut André Kuipers has installed ‘NightPod’ on the International Space Station, an aid for taking night-time pictures of Earth. The first batch of pictures offer stunning images of cities at night.
Melbourne, Australia, at night taken by ESA astronaut André Kuipers from the International Space Station with the NightPod camera aid. Credits: ESA/NASA
Any amateur photographer knows the problems … Read the rest of this article
As ESA’s Envisat satellite marks ten years in orbit, it continues to observe the rapid retreat of one of Antarctica’s ice shelves due to climate warming.
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This animation shows radar images from the Envisat satellite from 2002 to 2012 of the Larsen B ice shelf in Antarctica. Over the last decade, the ice shelf has disintegrated by 1790 sq km. …
A chance alignment of planets during a passing gust of the solar wind has allowed scientists to compare the protective effects of Earth’s magnetic field with that of Mars’ naked atmosphere. The result is clear: Earth’s magnetic field is vital for keeping our atmosphere in place.
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This animation shows how a particular stream of the solar wind sweeps through space, …
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
(Northern Hemisphere) |
Aurora Oval
(Southern Hemisphere) |
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