Sun

Vehicles are seen on a highway as the sun sets near the city of Stara Zagora...Vehicles are seen on a highway as the sun sets near the city of Stara Zagora, Bulgaria, February 3, 2016. REUTERS/Stoyan Nenov

Stoyan Nenov/Reuters

Vehicles are seen on a motorway as the sun sets near the city of Stara Zagora, Bulgaria 

A man enjoys the sun, as the shadow of a street light is cast on the wall behind him, at the Sant Jaume Square in Barcelona, Spain, Tuesday, Jan. 5, 2016.

Manu Fernandez/AP

A man enjoys the sun, as the shadow of a street light is cast on the wall behind him, at the Sant Jaume Square in Barcelona, Spain, Tuesday

The skyline of downtown Pittsburgh is reflected in the Allegheny River as it is silhouetted by the sun rising on a foggy morning, Sunday, Dec. 6, 2015. (AP Photo/Gene J. Puskar)

Gene J. Puskar/AP

The skyline of downtown Pittsburgh is reflected in the Allegheny River as it is silhouetted by the sun rising on a foggy morning

Autumn weather Nov 11th 2015...The sun rises over the North Sea off Whitley Bay, Tyne and Wear as a ship passes on the horizon. PRESS ASSOCIATION Photo. Picture date: Wednesday November 11, 2015. Photo credit should read: Owen Humphreys/PA Wire

Owen Humphreys/PA

The sun rises over the North Sea off Whitley Bay, Tyne and Wear as a ship passes on the horizon 

The sun rises over St Mary's Lighthouse in Whitley Bay on the Northumberland coast as a flock of Lapwing seabirds fly past. PRESS ASSOCIATION Photo. Picture date: Wednesday September 30, 2015

Owen Humphreys/PA

The sun rises over St Mary’s Lighthouse in Whitley Bay on the Northumberland coast as a flock of Lapwing seabirds fly past on Wednesday

The sun rises over Whitley Bay with the top of St Mary's lighthouse visible, as hot and humid air is expected to be pushed into northern Europe this weekend, including Britain, creating a "Spanish Plume"

Owen Humphreys/PA

The sun rises over Whitley Bay with the top of St Mary’s lighthouse visible, as hot and humid air is expected to be pushed into northern Europe this weekend, including Britain, creating a “Spanish Plume”

Cyclists reflect in a puddle and silhouette against the sky as sun sets near Guelpe, northeastern Germany

Lukas Schulze/DPA/AFP

Cyclists reflect in a puddle and silhouette against the sky as sun sets near Guelpe, northeastern Germany

People sunbathe at Levante Beach on Wednesday in Benidorm, Spain

David Ramos/Getty Images

People sunbathe at Levante Beach on Wednesday in Benidorm, Spain

Solar Eclipse...Handout photo dated 20/03/15 issued by Chester Zoo of lemurs looking at the eclipse over Chester Zoo. PRESS ASSOCIATION Photo. Issue date: Friday March 20, 2015. See PA story SCIENCE Eclipse. Photo credit should read: Steve Rawlins/Chester Zoo/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.

Steve Rawlins/Chester Zoo/PA

Lemurs at Chester Zoo in Cheshire, England observe the solar eclipse on Friday 

Solar Impulse on round-the-world tour

EPA/Solar Impulse

The Swiss solar-powered plane Solar Impulse 2, HB-SIB, taking off with Swiss explorer Andre Borshberg on board for the third leg Ahmedabad to Varanasi, of the Round-The-World, in Ahmedabad, on Wednesday.

Solar Plane Takes Off In Round The World Attempt

Jean Revillard/Getty

Solar Impulse 2, a solar-powered aircraft, takes flight as it begins its historic round-the-world journey from Al Bateen Airport, Abu Dhabi, on Monday

A gardener is silhouetted against the sun as he trims the grass at the Temple of Olympian Zeus in Athens February 4, 2015. Greek yields rose on Wednesday as a media report that the ECB was unwilling to approve Athens' proposal to raise the ceiling for its treasury bill issuance cooled optimism that a compromise debt deal may be reached

Kostas Tsironis/Reuters

A gardener is silhouetted against the sun as he trims the grass at the Temple of Olympian Zeus in Athens on Wednesday

The rising sun lights smoke in the air as a man crosses the street near Forward Operating Base Fenty in the Nangarhar province of Afghanistan...The rising sun lights smoke in the air as a man crosses the street near Forward Operating Base Fenty in the Nangarhar province of Afghanistan December 19, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT ENVIRONMENT TPX IMAGES OF THE DAY)

Lucas Jackson/Reuters

The rising sun lights smoke in the air as a man crosses the street near Forward Operating Base Fenty in the Nangarhar province of Afghanistan  

Autumn sun rises over the river Leine an...Autumn sun rises over the river Leine and surrounding landscape in Neustadt am R¸benberge, central Germany, on November 11, 2014.      AFP PHOTO / DPA / ALEXANDER K÷RNER / GERMANY OUTALEXANDER K÷RNER/AFP/Getty Images

Alexander Karner/AFP/Getty

Autumn sun rises over the river Leine and surrounding landscape in Neustadt am Rübenberge, Germany 

China's Face-kini Becomes Unlikely Global Fashion Hit...QINGDAO, CHINA - AUGUST 21:  A Chinese girl wears a face-kini as she floats in the water on August 21, 2014 on the Yellow Sea in Qingdao, China. The locally designed mask is worn by many local women to protect them from jellyfish stings, algae and the sun's ultraviolet rays.  (Photo by Kevin Frayer/Getty Images)

Kevin Frayer/Getty

A Chinese girl wears a face-kini as she floats in the water on the Yellow Sea in Qingdao, China. The locally designed mask is worn by many local women to protect them from jellyfish stings, algae and the sun’s ultraviolet rays. 

Children are silhouetted against the setting sun as they play on the outskirts of Lahore January 28, 2014.

Mohsin Raza/Reuters

Children play on the outskirts of Lahore, Pakistan 

An aircraft approaches the airport while the clouds are turned red by the rising sun in Frankfurt Main, Germany, on January 3, 2014.

Frank Rumpenhorst/AFP

An airplane approaches the airport while the clouds are turned red by the rising sun in Frankfurt, Germany

Solar Dynamics Observatory Shows Sun's Rainbow of Wavelengths...epa03995749 An undated handout picture released by NASA on 19 December 2013 shows a still image taken from a NASA movie of the sun based on data from NASA's Solar Dynamics Observatory (SDO), showing the wide range of wavelengths, invisible to the naked eye, that the telescope can view. SDO converts the wavelengths into an image humans can see, and the light is colorized into a rainbow of colors. Yellow light of 5,800 Angstroms, for example, generally emanates from material of about 5,700 degree Celsius, which represents the surface of the sun. Extreme ultraviolet light of 94 Angstroms, which is typically colorized in green in SDO images, comes from atoms that are about 6,300,000 degree Celsius and is a good wavelength for looking at solar flares, which can reach such high temperatures. By examining pictures of the sun in a variety of wavelengths, as it is done not only by SDO, but also by NASA's Interface Region Imaging Spectrograph, NASA's Solar Terrestrial Relations Observatory and the European Space Agency/NASA Solar and Heliospheric Observatory; scientists can track how particles and heat move through the sun's atmosphere.  EPA/NASA GODDARD SPACE FLIGHT CENTER  HANDOUT EDITORIAL USE ONLY

EPA/Nasa

This picture released by Nasa shows a still image taken from a video of the sun taken by Nasa’s Solar Dynamics Observatory – it shows a wide range of wavelengths invisible to the naked eye 

Israeli soldiers gesture as they sit in front of the Mediterranean at Zikim beach, near the southern city of Ashkelon November 27, 2013. Unseasonable temperatures reaching 32 degrees Celsius were recorded in some areas of Israel on Wednesday.

Amir Cohen/Reuters

Israeli soldiers gesture in front of the Mediterranean at Zikim beach, near the southern city of Ashkelon, Israel

Glare from skyscraper...Sun reflects off the Walkie Talkie building at 20 Fenchurch Street in central London.  PRESS ASSOCIATION Photo. Picture date: Wednesday September 4, 2013. Temporary scaffold screens have been erected to prevent further damage after the tower was blamed for starting fires and causing damage by reflecting the sun's rays. See PA story INDUSTRY Skyscraper. Photo credit should read: Lewis Whyld/PA Wire

Lewis Whyld/PA

Sun reflects off the Walkie Talkie building at 20 Fenchurch Street in central London. The tower has been blamed for starting fires and causing damage, including warping the panels of a car, from the heat of the reflected sunlight