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Apr 21, 2016 06:46 AM ET
"Get more sun!" we're told, when we need to bulk up on our vitamin D. Fair enough, but how does merely walking outdoors turn us into vitamin factories?
Apr 20, 2016 02:40 PM ET // Mike Wall,
A huge, heart-shaped sunspot shot off a strong solar flare Sunday evening (April 17), temporarily disrupting radio communications here on Earth.
Apr 14, 2016 12:32 PM ET // Elizabeth Howell
Was there a so-called 'super-Earth' planet that formed inside the orbit of Mercury? If so, it might have been eaten by our sun.
Apr 13, 2016 07:00 AM ET // Jason Major
Using the modern version of a 150 year-old technique, NASA has photographed an incredible view of an aircraft's sonic boom.
Apr 7, 2016 04:17 PM ET // Ian O'Neill
Although we haven't yet pinpointed the location of a possibly large planet in the outer solar system, we are beginning to paint a picture as to what the mysterious world might look like and what it's made of.
Mar 18, 2016 04:00 PM ET // Geoff Gaherty, Starry Night Education
Half an hour past midnight EDT on Sunday, March 20, the sun will cross the celestial equator moving north, heralding the change of seasons. Continue reading →
Mar 16, 2016 08:37 PM ET // Ian O'Neill
Astronomers have studied a violent young sun-like star, revealing that life on Earth is lucky to have such a strong global magnetic field.
Mar 9, 2016 06:53 AM ET // Mike Wall,
The moon briefly blotted out the sun for observers in a 90-mile-wide strip of land and sea over parts of Indonesia and the Pacific Ocean region.
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