Sun

Grab your sunglasses—all of those far-off stars, black holes and celestial bodies contribute to your killer tan.

Part of Your Suntan Comes From Photons That Are Billions of Years Old

Thank bodies from beyond the galaxy for a bit of that golden glow

An solar storm erupts on April 16, 2012, captured by NASA's Solar Dynamics Observatory in the 304 Angstrom wavelength.

The Solar Storm That Nearly Set the Cold War Ablaze

How radio interference from a 1967 solar storm spooked the U.S. military—and launched space weather forecasting

Collector urchins can protect themselves from the sun by covering themselves with bits of algae, coral and other detritus.

Urchin Sunscreen and Other Ways Animals Beat the Burn

Species have come up with a variety of ways to protect themselves from the sun

How sleepy you are may depend on a number of factors, including age and where in the world you live.

Smartphone Study Uncovers Why So Much of the World is Short on Sleep

Age, gender and nationality impact how much we sleep, and social pressures rob many of needed rest

An illustration of the path Mercury will take across the sun on May 9.

For The First Time in a Decade, Watch Mercury Cross the Sun's Face

Next week's transit of Mercury is one of the major astronomical events of the year

A view of the total solar eclipse captured from Donggala, Indonesia.

Check Out These Photos From Last Night’s Solar Eclipse

Parts of the pacific and Indonesia went dark last night as the moon moved directly between Earth and the sun

A satellite photo of an almost-finished solar farm near Walt Disney World in Orlando reveals a familiar face.

The Shifting Shapes of Solar Farms

They're more than just massive fields of black panels

An annular solar eclipse is observed in Yantai, Shandong province, China, January 15, 2010.

A Solar Eclipse Will Darken Pacific Skies This Week

Though the actual eclipse can only be seen from select locations, don't miss the live stream of the event online

NASA Captures Mesmerizing Video of Cascading Magnetic Arches on the Sun

Swirling magnetic waves triggered spectacular explosions on the sun’s surface

An artist's rendition of Juno in orbit around Jupiter. The craft is powered entirely by the sun's rays.

Juno Is Now Humanity’s Furthest-Flung Solar-Powered Craft

Armed with over 18,000 solar cells, the Jupiter orbiter is taking solar-fueled space exploration to new lengths

This Weekend's Southern Lights Were Nothing Short of Spectacular

The Northern Hemisphere hasn't yet cornered the market for glorious aurorae

Watch 30 Minutes of Mesmerizing, Ultra-HD Sun

NASA's Solar Dynamics Observatory stares at the sun so you don't have to

A solar flare erupts from the Sun in 2012.

When Will the Next Solar Superflare Hit Earth?

The year 2209 just got a lot scarier

Here’s What the Sun Looks Like Through an X-Ray Telescope

All of the wonder of Earth’s closest star, none of the retinal damage

The 7-by-6-foot video wall on view at the National Air and Space Museum closes the 93 million mile gap between the Earth and the Sun.

These Two Scientists Turned Data From the Sun Into a Work of Art

After collecting real-time data from the sun, two astrophysicists got to tinkering with video game components and the outcome is breathtaking

A mosaic image shows magnetic activity on the solar disk, which is surrounded by the relatively faint corona.

A "Mangrove Forest" of Magnetism May Help Heat the Sun's Corona

New simulations might explain why the sun's atmosphere is bizarrely millions of degrees hotter than its surface

The sun sets on Mars. From June 7 to 21, Mars will be obscured from Earth by the sun, causing a communications blackout.

NASA Will Lose Contact With Mars for 14 Days This Month

A conjunction with the sun will cause a two-week pause in commands to NASA Mars missions

In the Future, We Might Take Sunscreen in Pill Form

A discovery in some fish suggests that sunblocking chemicals could be ingested rather than slathered on

Watch the Sun Set on Mars

Curiosity takes its first color pictures of a Martian sunset

The Sun Has Seasons

And you thought it was just "hot"

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