News tagged with sun

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Why plants don't get sunburn

Plants rely on sunlight to make their food, but they also need protection from its harmful rays, just like humans do. Recently, scientists discovered a group of molecules in plants that shields them from ...

22 hours ago
5 / 5 (11) 1

Hot explosions on the cool sun

(Phys.org) —The Sun is more spirited than previously thought. Apart from the solar eruptions, huge bursts of particles and radiation from the outer atmosphere of our star, also the cooler layer right below ...

Oct 20, 2014
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Partial solar eclipse over the U.S. on Thursday, Oct. 23

People in most of the continental United States will be in the shadow of the Moon on Thursday afternoon, Oct. 23, as a partial solar eclipse sweeps across the Earth. For people looking through sun-safe filters, from Los Angeles, ...

Oct 17, 2014
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Tiny "nanoflares" might heat the Sun's corona

Why is the Sun's million-degree corona, or outermost atmosphere, so much hotter than the Sun's surface? This question has baffled astronomers for decades. Today, a team led by Paola Testa of the Harvard-Smithsonian ...

Oct 16, 2014
4.9 / 5 (10) 41

SDO watches giant filament on the Sun

A snaking, extended filament of solar material currently lies on the front of the sun— some 1 million miles across from end to end. Filaments are clouds of solar material suspended above the sun by powerful ...

Oct 03, 2014
4.5 / 5 (19) 0

Is the sun at solar minimum?

We generally think of the Sun as a constant in our lives. It rises and sets regularly, and seems to be an unchanging sphere of brilliant light. In fact the Sun has a turbulent surface with prominences that ...

Oct 03, 2014
4.7 / 5 (22) 4