NASA will celebrate Earth Day on April 22 to engage the public in the Agency’s mission to better understand and protect our home planet. Download a high resolution of our Earth Day poster.
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NASA has selected ten studies under the Planetary Science Deep Space SmallSat Studies (PSDS3) program, to develop mission concepts using small satellites to investigate Venus, Earth’s moon, asteroids, Mars and the outer planets.
The earliest satellites of the Space Age were small. Sputnik, for instance, weighed just 184.3 lbs. America’s first satellite, Explorer 1, was even smaller at only about 30 lbs.
Over time, satellites grew to accommodate more sensors with greater capabilities, but thanks to miniaturization and new technology capabilities, small is back in vogue.
NASA’s Goddard Space Flight Center lost four of its greatest minds in the past several months. Phil Sabelhaus, Marty Davis, Neil Gehrels and Piers Sellers made indelible contributions to space exploration during their decades of service to NASA. This video honors the legacies of these individuals and their lasting impact on the spaceflight community.
About 30 years ago, researchers announced that ozone concentrations high in the atmosphere over the South Pole had hit an all-time low. This critical layer of the atmosphere that shields us from the Sun’s harmful UV rays had a ‘hole’ in it. And that hole was rapidly expanding. This discovery led to the Montreal Protocol, an international treaty that regulates production of ozone-destroying chemicals like chlorofluorocarbons, or CFCs. As a result, the ozone layer is now on the mend.
Something strange is about to happen to sunbeams in the southern hemisphere.
On Sunday, February 26th, the moon will pass in front of the sun, transforming rays of sunlight across parts of South America, southern Africa and Antarctica into fat crescents and thin rings of light.
Major experiments that will look into a range of scientific disciplines from human health to atmospheric conditions on Earth are on their way to the International Space Station.
2017 is beginning with fireworks.
No, not those fireworks…
We’re talking about a lightshow from shattered comet 2003 EH1.
According to the International Meteor Organization and other forecasters, Earth will pass through a stream of debris from the comet on January 3, 2017, producing a shower of meteors known as the Quadrantids.