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The 2017 Total Solar Eclipse Poster
Sun, Sky Watching, Eclipses
Aug 18, 2017
On August 21, 2017, a continent-spanning wave of instruments from home-made pinhole cameras to the most sophisticated telescopes in operation today will be trained on the Eclipse Across America.
Sun, Our Sun, Earth’s Space Environment
Jun 27, 2017
Intense solar activity such as sunspots and solar flares subsides during solar minimum, but that doesn’t mean the sun becomes dull. Solar activity simply changes form.
Solar Minimum is Coming Poster
Sun, Earth’s Space Environment
May 16, 2017
Sounding rocket missions can often be the key to getting a quick answer to a tightly focused science question.
NASA's Sounding Rockets Poster
Universe, Earth, Sun, Solar System
Apr 13, 2017
We once thought oceans made our planet unique, but we’re now coming to realize that ‘ocean worlds’ are all around us.
Ocean Worlds Poster
Earth, Sun
Mar 20, 2017
NASA is embracing small satellite designs, from tiny CubeSats to micro-satellites. These miniature marvels are providing many ways to collect science data and to demonstrate new technologies.
NASA Embraces Small Satellites Poster
Sun, Sky Watching, Eclipses
Feb 24, 2017
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.
Southern Hemisphere Solar Eclipse Poster
Sun
Nov 30, 2016
Observations by NASA's IRIS spacecraft suggest that "heat bombs" are going off in the sun's outer atmosphere, helping to explain why the solar corona is so mysteriously hot.
The Mystery of Coronal Heating Poster 1
Sun, Earth’s Space Environment
Sep 21, 2016
Four NASA spacecraft have performed a thrilling maneuver to understand the physics of explosive reconnection in Earth's magnetosphere.
NASA Spacecraft Fly in Record-setting Formation Poster
Sun, Earth’s Space Environment
Aug 16, 2016
Summer is the season for electric-blue noctilucent clouds. NASA's AIM spacecraft is finding that these clouds continue to reveal details about how the atmosphere works.
Earth, Sun, Earth’s Space Environment
Jun 14, 2016
Dynamic bubbles of ionization in Earth's upper atmosphere can cause GPS signals to "twinkle" like stars, affecting the quality of navigation on Earth below. NASA recently conducted a mission called CINDI to investigate this phenomenon.
Twinkle Twinkle GPS Poster 1
Sun, Sky Watching
May 3, 2016
On May 9th, Mercury will move across the face of the sun, offering a rare viewing opportunity for professional astronomers and backyard sky watchers alike.
2016 Transit of Mercury Poster
Sun, Sky Watching, Eclipses
Mar 8, 2016
During the early hours of March 9, 2016 the new moon will pass directly in front of the sun, producing a total eclipse of the sun over South East Asia. A partial eclipse will be viewable the evening of March 8, 2016 in western-most parts of the USA including Alaska and Hawai'i.
Indonesian Solar Eclipse Poster
Exoplanets, Sun
Feb 18, 2016
Deep in the heart of California's Owens Valley, a strange-looking telescope stands in the desert landscape listening for echos of distant stars.  
Listening to the Stars Poster
Sun, Earth’s Space Environment
Dec 14, 2015
Earth is surrounded by electrons that can be disruptive to our technology. NASA is using high-altitude balloons and spacecraft to monitor and understand these particles in the radiation belts surrounding our planet.
Escape of the Destructive Electrons Poster
Sun
Oct 20, 2015
The ESA/NASA Solar and Heliospheric Observatory has discovered more than 3000 doomed comets that have passed close to the sun. 
Thousands of Doomed Comets Poster