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Recent Articles
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Topic: UV RadiationWritten by Elizabeth Zubritsky
“The MAVEN mission tells us that Mars lost substantial amounts of its atmosphere over time, changing the planet’s habitability,” said David Brain, a MAVEN co-investigator and a professor at the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder. “We can use Mars, a planet that we know a lot about, as a laboratory for studying rocky planets outside our solar system, which we don’t know much about yet.” ![]() This illustration depicts charged particles from a solar storm stripping away charged particles of Mars’ atmosphere, one of the processes of Martian atmosphere loss studied by NASA’s MAVEN mission, beginning in 2014. Unlike Earth, Mars lacks a global magnetic field that could deflect charged particles emanating from the Sun. (NASA/GSFC) «Read the rest of this article» Sections: Technology | No Comments
NASA looks at the Mystery of Jupiter’s Red SpotWritten by Roberto Molar Candanosa
With tumultuous winds peaking at about 400 mph, the Great Red Spot has been swirling wildly over Jupiter’s skies for the past 150 years—maybe even much longer than that. ![]() Trapped between two jet streams, the Great Red Spot is an anticyclone swirling around a center of high atmospheric pressure that makes it rotate in the opposite sense of hurricanes on Earth. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA looks back at the July 2012 Solar Superstorm that just missed EarthWritten by Tony Phillips
Two years ago, Earth experienced a close shave just as perilous, but most newspapers didn’t mention it. The “impactor” was an extreme solar storm, the most powerful in as much as 150+ years. “If it had hit, we would still be picking up the pieces,” says Daniel Baker of the University of Colorado. «Read the rest of this article» Sections: Technology | No Comments
NASA to launch Lunar Atmosphere and Dust Environment Explorer (LADEE) to study Twilight Rays on the Moon
Back on Earth, we see twilight rays all the time as shafts of sunlight penetrate evening clouds and haze. The “airless Moon” shouldn’t have such rays, yet the men of Apollo clearly saw them. «Read the rest of this article» Sections: Technology | No Comments
Tennessee Department of Health says Stay Safe in the Summer SunEasy Steps Help Prevent Skin Cancer
The Tennessee Department of Health is reminding Tennesseans of easy steps to follow to protect your skin this summer and all through the year. «Read the rest of this article» Sections: News | No Comments
The Secret Lives of Solar FlaresWritten by Dr. Tony Phillips
It happened at 11:18am on the cloudless morning of Thursday, September 1st, 1859. Just as usual on every sunny day, the 33-year-old solar astronomer was busy in his private observatory, projecting an image of the sun onto a screen and sketching what he saw. On that particular morning, he traced the outlines of an enormous group of sunspots. Suddenly, before his eyes, two brilliant beads of white light appeared over the sunspots; they were so bright he could barely stand to look at the screen. «Read the rest of this article» Sections: News | No Comments
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