Solar Impulse 2: Around the world on solar power

Bertrand Piccard takes a selfie during the last leg of the round the World trip.

Solar Impulse 2, piloted by Swiss pioneer Bertrand Piccardis lands in Abu Dhabi, with Sheikh Zayed mosque in the background, to complete its world tour flight July 26, 2016 in the United Arab Emirates.

The Solar Impulse 2 piloted by Swiss adventurer Bertrand Piccard, flies over the Golden Gate bridge in San Francisco, after a flight from Hawaii before landing at Moffett Airfield in Mountain View, Calif., on April 23, 2016.

The Solar Impulse 2 lands at Moffett Field in Mountain View, Calif., on April 23, 2016.

The Solar Impulse 2 flies over the Golden Gate Bridge in San Francisco at the end of its journey from Hawaii, part of its attempt to circumnavigate the globe on April 23, 2016.

The Solar Impulse 2 flies over San Francisco at the end of its journey from Hawaii on April 23, 2016.

Solar Impulse 2 pilots Bertrand Piccard and Andre Borschberg, celebrate after landing at the Kalaeloa Airport, Hawaii. The pilots landed in California on April 23, 2016, completing their round-the-world trip on the solar-powered aircraft.

Solar Impulse 2 approaches Kalaeloa Airport near Honolulu.

The Solar Impulse 2, piloted by Andre Borschberg is greeted by Federal Customs Agents after, landing at the Kalaeloa Airport, Hawaii.

Solar Impulse 2, approaches Kalaeloa Airport near Honolulu. This 120-hour voyage from Nagoya, Japan broke the record for the world's longest nonstop solo flight.

The Solar Impulse 2 lands at the Kalaeloa Airport.

The Solar Impulse 2 approaches the Kalaeloa Airport,

Yasemine Borschberg waves a Japanese flag as the Solar Impulse 2 takes off from the Nagoya Komaki airport with her husband Andre Borschberg as the pilot. The plane is en route to Hawaii after spending an unscheduled four-week stopover due to bad weather.

Sunrise a little while after Solar Impulse 2 took off from the international airport in Nagoya, Japan, headed for Hawaii.

Andre Borschberg at the controls of Solar Impulse 2 as he prepares to take off from Nagoya, Japan, June 28.

Yasemin and Andre Borschberg prior to the take off of Solar Impulse 2.

The Solar Impulse 2, prepares to take off from the Nagoya Komaki airport.

Bertrand Piccard, pilot of Solar Impulse 2, gestures to the crowd waiting for him outside the hangar at Nanjing Lukou International Airport in Nanjing, China's Jiangsu province. The fuel-free aircraft will stay in Nanjing for about ten days before setting off for a Pacific crossing, the most perilous legs in its global journey.

Team members walk next to the solar powered aircraft Solar Impulse 2 as Swiss pilot Bertrand Piccard taxis the plane after landing in Nanjing Lukou International Airport in Nanjing, China

Swiss pilot Bertrand Piccard takes a photo using a selfie stick, while at the controls of the solar powered aircraft Solar Impulse 2 during the flight from Chongqing to Nianjing, China.

CHONGQING, CHINA - APRIL 21: (CHINA OUT) The solar-powered aircraft Solar Impulse 2 leaves Chongqing Jiangbei International Airport for its sixth flight - Nanjing early Tuesday on April 21, 2015 in Chongqing, China. Solar Impulse 2, the first aircraft completely sustained by solar power, took off from Myanmar's second biggest city of Mandalay early Monday and after a 20-hour flight, the Solar Impulse 2 airplane touched down in south China's Chongqing Jiangbei International Airport and stayed at Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun, for twenty days. The Solar Impulse 2 has took off and headed for its sixth flight of China's Nanjing early on April 21. It was said that the whole flight of Polar Impulse 2 would last for five months in 12 stations. (Photo by ChinaFotoPress/Getty Images) ORG XMIT: 549787673 ORIG FILE ID: 470502262

CHONGQING, CHINA - APRIL 21: (CHINA OUT) The solar-powered aircraft Solar Impulse 2 is released from the hangar by workers at Chongqing Jiangbei International Airport for its sixth flight - Nanjing early Tuesday on April 21, 2015 in Chongqing, China. Solar Impulse 2, the first aircraft completely sustained by solar power, took off from Myanmar's second biggest city of Mandalay early Monday and after a 20-hour flight, the Solar Impulse 2 airplane touched down in south China's Chongqing Jiangbei International Airport and stayed at Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun, for twenty days. The Solar Impulse 2 has took off and headed for its sixth flight of China's Nanjing early on April 21. It was said that the whole flight of Polar Impulse 2 would last for five months in 12 stations. (Photo by ChinaFotoPress/Getty Images) ORG XMIT: 549787673 ORIG FILE ID: 470502280

CHONGQING, CHINA - APRIL 21: (CHINA OUT) The solar-powered aircraft Solar Impulse 2 leaves Chongqing Jiangbei International Airport for its sixth flight - Nanjing early Tuesday on April 21, 2015 in Chongqing, China. Solar Impulse 2, the first aircraft completely sustained by solar power, took off from Myanmar's second biggest city of Mandalay early Monday and after a 20-hour flight, the Solar Impulse 2 airplane touched down in south China's Chongqing Jiangbei International Airport and stayed at Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun, for twenty days. The Solar Impulse 2 has took off and headed for its sixth flight of China's Nanjing early on April 21. It was said that the whole flight of Polar Impulse 2 would last for five months in 12 stations. (Photo by ChinaFotoPress/Getty Images) ORG XMIT: 549787673 ORIG FILE ID: 470502274

CHONGQING, CHINA - APRIL 21: (CHINA OUT) The solar-powered aircraft Solar Impulse 2 is released from the hangar by workers at Chongqing Jiangbei International Airport for its sixth flight - Nanjing early Tuesday on April 21, 2015 in Chongqing, China. Solar Impulse 2, the first aircraft completely sustained by solar power, took off from Myanmar's second biggest city of Mandalay early Monday and after a 20-hour flight, the Solar Impulse 2 airplane touched down in south China's Chongqing Jiangbei International Airport and stayed at Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun, for twenty days. The Solar Impulse 2 has took off and headed for its sixth flight of China's Nanjing early on April 21. It was said that the whole flight of Polar Impulse 2 would last for five months in 12 stations. (Photo by ChinaFotoPress/Getty Images) ORG XMIT: 549787673 ORIG FILE ID: 470502310

CHONGQING, CHINA - APRIL 21: (CHINA OUT) Workers make preparation for the take-off of solar-powered aircraft Solar Impulse 2 at Chongqing Jiangbei International Airport early Tuesday on April 21, 2015 in Chongqing, China. Solar Impulse 2, the first aircraft completely sustained by solar power, took off from Myanmar's second biggest city of Mandalay early Monday and after a 20-hour flight, the Solar Impulse 2 airplane touched down in south China's Chongqing Jiangbei International Airport and stayed at Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun, for twenty days. The Solar Impulse 2 has took off and headed for its sixth flight of China's Nanjing early on April 21. It was said that the whole flight of Polar Impulse 2 would last for five months in 12 stations. (Photo by ChinaFotoPress/Getty Images) ORG XMIT: 549787673 ORIG FILE ID: 470502338

Solar Impulse 2, the world's only solar powered aircraft, flies over the Mandalay International Airport in Myanmar on March 30, 2015. Solar Impulse 2 took off from Myanmar's second biggest city of Mandalay early on March 30 and headed for China's Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. AFP PHOTO / YE AUNG THUYe Aung Thu/AFP/Getty Images ORIG FILE ID: 539317507

epa04686217 Swiss 'Solar Impulse 2' pilot Bertrand Piccard (C) waves before he departs from the Mandalay International airport in Mandalay, Myanmar, 30 March 2015. The Swiss solar-powered aircraft Solar Impulse 2 took off early 30 March from Mandalay, Myanmar, bound for China as it attempts to fly around the world. Before beginning the fifth phase of their journey, the crew made a ten-day layover to await better weather in China. Solar Impulse 2, with Swiss pilot Bertrand Piccard, 57, at the controls, is to make the 19-hour, 1,375-kilometre flight to Chongqing in south-western China. Piccard and Andre Boschberg, 62, are circumnavigating the globe to promote solar power. EPA/PYAE SONE AUNG ORG XMIT: PSAx

Support crew members of Solar Impulse 2, the world's only solar powered aircraft, stand near the plane, before it took off from the Mandalay International Airport in Myanmar on March 30, 2015. Solar Impulse 2 took off from Myanmar's second biggest city of Mandalay early on March 30 and headed for China's Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. AFP PHOTO / YE AUNG THUYe Aung Thu/AFP/Getty Images ORG XMIT: - ORIG FILE ID: 539318601

Support crew members of the Solar Impulse 2, the world's only solar powered aircraft, stand near plane before it takes off from the Mandalay International Airport in Myanmar on March 30, 2015. Solar Impulse 2 took off from Myanmar's second biggest city of Mandalay early on March 30 and headed for China's Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. AFP PHOTO / YE AUNG THUYe Aung Thu/AFP/Getty Images ORIG FILE ID: 539317509

epa04670857 Myanmar police stand guard as staff works near the 'Solar Impulse 2' aircraft inside its inflatable hanger at the Mandalay International airport in Mandalay, Myanmar, 20 March 2015. The attempt for the first circumnavigation of the earth in the solar-powered airplane 'Solar Impulse 2' began in Abu Dhabi 09 March with Swiss pilot Andre Borschberg at the controls. Borschberg and Piccard switch turns on the stages that will take them around the world in a dozen legs until early August. The trip took the 'Solar Impulse 2' to Oman, India and Myanmar so far. The aircraft will continue its flight to China and will then cross the Pacific to Hawaii and on to the US mainland. Following a flight across the Atlanic and over the Mediterranean region, the pilots are planning to return to the capital of the United Arab Emirates. EPA/NYEIN CHAN NAING ORG XMIT: NCN131

epa04670710 Myanmar's president Thein Sein (R) receives present from the pilots of the solar powered 'Solar Impulse 2' plane, Switzerland's Bertrand Piccard (L) and Andre Borschberg (C), at the Mandalay International airport in Mandalay, Myanmar, 20 March 2015. The attempt for the first circumnavigation of the earth in a solar-powered airplane began in Abu Dhabi 09 March with Swiss pilot Andre Borschberg at the controls. Borschberg and Piccard switch turns on the stages that will take them around the world in a dozen legs until early August. The trip took the 'Solar Impulse 2' to Oman, India and Myanmar so far. The aircraft will continue its flight to China and will then cross the Pacific to Hawaii and on to the US mainland. Following a flight across the Atlanic and over the Mediterranean region, the pilots are planning to return to the capital of the United Arab Emirates. EPA/PYAE SONE AUNG ORG XMIT: PSA005

A Myanmar policeman walks past the Solar Impulse 2, the world's only solar-powered aircraft, after it landed at Mandalay international airport on March 19, 2015. Solar Impulse 2 took off from the Indian holy city of Varanasi for Myanmar, its fourth flight after embarking on a landmark journey to circumnavigate the globe powered solely by the sun. AFP PHOTO / YE AUNG THUYe Aung Thu/AFP/Getty Images ORIG FILE ID: 538994006

epa04669863 Solar Impulse 2 arrive to the Mandalay International airport in Mandalay, Myanmar, 19 March 2015. Solar Impulse 2 is the only solar single-seater airplane able to fly day and night without a drop of fuel. An attempt at the first circumnavigation of the earth in a solar-powered airplane began in Abu Dhabi with Swiss pilot Andre Borschberg at the controls, the team said. Borschberg will take turns with fellow Swiss aviator Bertrand Piccard to fly the Solar Impulse 2 in a trip that will take them around the world in a dozen legs until early August. Their aircraft weighs only as much as a large car, but the wings span as wide as a large passenger jet, and are covered with solar panels that power four propellers. Borschberg and Piccard have said they would use self-hypnosis and yoga to endure the long solo flights and the extreme changes in temperature. The trip will take the Solar Impulse 2 to Oman, India, Myanmar and China. The plane will then cross the Pacific to Hawaii and on to the US mainland. Following a flight across the Atlanic and over the Mediterranean region, the pilots are planning to return to the capital of the United Arab Emirates. EPA/NYEIN CHAN NAING ORG XMIT: NCN114

In this handout photograph released by the Solar Impulse project on March 19, 2015, the solar-powered Solar Impulse 2 aircraft takes off from Varanasi Airport in northern Varanasi town. The first attempt to fly around the world in a plane using only solar power launched on March 9, 2015 in Abu Dhabi in a landmark journey aimed at promoting green energy. AFP PHOTO / SOLAR IMPULSE ----RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT - "AFP PHOTO / SOLAR IMPULSE " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----Solar Impulse/AFP/Getty Images ORIG FILE ID: 538986840

In this handout photograph released by the Solar Impulse project on March 19, 2015, the solar-powered Solar Impulse 2 aircraft waits on the runway before taking off at Varanasi Airport in northern Varanasi town. The first attempt to fly around the world in a plane using only solar power launched on March 9, 2015 in Abu Dhabi in a landmark journey aimed at promoting green energy. AFP PHOTO / SOLAR IMPULSE ----RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT - "AFP PHOTO / SOLAR IMPULSE " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----Solar Impulse/AFP/Getty Images ORIG FILE ID: 538986836

In this handout released by Solar Impulse on March 19, 2015, the Solar Impulse 2 aircraft is prepared for take off from the Indian holy city of Varanasi for Myanmar, its fourth flight after embarking on a landmark journey to circumnavigate the globe powered solely by the sun. The single-seater aircraft took off at 5.22 am (2352 GMT) for what is expected to be a 20-hour journey south of the Himalayas to Mandalay, the second-largest city of Myanmar. AFP PHOTO / Solar Impulse / Revillard / Rezo --- EDITORS NOTE ---- RESTRICTED TO EDITORIAL USE MANDATORY CREDIT "AFP PHOTO / Solar Impulse / Revillard / Rezo" NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS - NO ARCHIVESRevillard / Rezo/AFP/Getty Images ORIG FILE ID: 538986432

Members of the groundcrew for solar powered aircraft "Solar Impulse II" surround the aircraft after it landed in Varanasi late on March 18, 2015. The solar powered aircraft Solar Impulse II successfully completed its third leg of the Round-The-World Solar Flight after departing Ahmedabad and arriving in Varanasi in India after a 13 hours and 15 minutes flight. AFP PHOTO/Sanjay KANOJIASanjay Kanojia/AFP/Getty Images ORIG FILE ID: 538962355

epa04667840 A handout picture provided by Solar Impulse on 18 March 2015 shows 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, India, 18 March 2015. Swiss explorers Bertrand Piccard and Andre Borschberg attempt to circumnavigate the world flying with an aircraft, with a 72 metres wingspan, powered only by solar energy without a drop of fuel. EPA/SOLAR IMPULSE / HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES ORG XMIT: LG102

epa04667193 A handout picture provided by Solar Impulse on 18 March 2015 shows 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, India, 18 March 2015. Swiss explorers Bertrand Piccard and Andre Borschberg attempt to circumnavigate the world flying with an aircraft, with a 72 metres wingspan, powered only by solar energy without a drop of fuel. EPA/SOLAR IMPULSE / HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES ORG XMIT: LG101

In this photo released by Solar Impulse "Solar Impulse 2", a solar-powered airplane piloted by Bertrant Piccard, from Switzerland approaches the airport in Ahmedabad, India on Tuesday March 10, 2015, during its historic round-the-world journey finishing the second leg of the journey from Muscat in Oman. With his 15:20 hours flight he set a new world record for solar distance flight with 1,486 kilometers. The trip continues on Sunday with Andre Boschberg, being the pilot. (AP Photo/Solar Impulse, Jean Revillard) ORG XMIT: LON131

The Solar Impulse 2 Plane is stationed after landing at Sardar Vallabhbhai Patel International Air Port in Ahmedabad,, the main city of western India's Gujarat state, late March 10, 2015. The Solar Impulse 2 Plane was flown from Muskat in Oman to Ahmedabad in India in some 15 hours. The aircraft is scheduled to fly from Ahmedabad to Myanmar on March 16th after making a short stop at the Hindu holy city of Varanasi in northern India. AFP PHOTO / Sam PANTHAKYSAM PANTHAKY/AFP/Getty Images ORIG FILE ID: 538725631

A handout picture released by the Solar Impulse project shows the solar-powered plane Solar Impulse 2 flying over the Omani capital Muscat after taking off on March 10, 2015, for Ahmedabad in India on the second leg of its epic bid to become the first plane to fly around the world powered solely by the sun. The aircraft took off at 6.35 am (0235 GMT) for what is expected to be a 16-hour, 1,465 kilometre (910 mile) journey over the Arabian Sea. AFP PHOTO / SOLAR IMPULSE / JEAN REVILLARD == RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / SOLAR IMPULSE / JEAN REVILLARD" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==JEAN REVILLARD/AFP/Getty Images ORIG FILE ID: 538703571

The solar-powered plane Solar Impulse 2 takes off from Muscat airport in Oman early on March 10, 2015, as it heads to Ahmedabad in India on the second leg of its epic bid to become the first plane to fly around the world powered solely by the sun. AFP PHOTO / MOHAMMED MAHJOUBMOHAMMED MAHJOUB/AFP/Getty Images ORIG FILE ID: 538700540

Members of the Solar Impulse 2 team stand next to the solar-powered plane before its take off from Muscat airport in Oman early on March 10, 2015, to head to Ahmedabad in India on the second leg of its epic bid to become the first plane to fly around the world powered solely by the sun. AFP PHOTO / MOHAMMED MAHJOUBMOHAMMED MAHJOUB/AFP/Getty Images ORIG FILE ID: 538700824

epa04654570 A handout photo made available by Jean Revillard of "Solar Impulse 2", a solar-powered airplane as it begins its historic round-the-world journey on March 09 2015 from Abu Dhabi, taking off at a speed of just 20 knots (36 kilometers per hour) from the tarmac of the Al Bateen Airport in the UAE capital city on the first leg of its 40,000-kilometer trip to Muscat, Oman -- some 500 kilometers to the east. EPA/JEAN REVILLARD HANDOUT EDITORIAL USE ONLY/NO SALES ORG XMIT: GN02

People watch as the Solar Impulse 2 takes off from Al Bateen airport in Abu Dhabi.

epa04654507 The Solar Impulse Two plane is prepared for takeoff for a trip around the world from Al Bateen Executive Airport in Abu Dhabi, UAE, 09 March 2015. Solar Impulse 2 is the only solar single-seater airplane able to fly day and night without a drop of fuel. An attempt at the first circumnavigation of the earth in a solar-powered airplane began in Abu Dhabi with Swiss pilot Andre Borschberg at the controls, the team said. Borschberg will take turns with fellow Swiss aviator Bertrand Piccard to fly the Solar Impulse 2 in a trip that will take them around the world in a dozen legs until early August. Their aircraft weighs only as much as a large car, but the wings span as wide as a large passenger jet, and are covered with solar panels that power four propellers. Borschberg and Piccard have said they would use self-hypnosis and yoga to endure the long solo flights and the extreme changes in temperature. The trip will take the Solar Impulse 2 to Oman, India, Myanmar and China. The plane will then cross the Pacific to Hawaii and on to the US mainland. Following a flight across the Atlanic and over the Mediterranean region, the pilots are planning to return to the capital of the United Arab Emirates. EPA/ALI HAIDER ORG XMIT: XAH

epa04654464 The Solar Impulse 2 plane leaves the hangar before taking off from Al Bateen Executive Airport in Abu Dhabi, UAE, 09 March 2015. Solar Impulse 2, is the only solar single-seater airplane able to fly day and night without a drop of fuel. Borschberg will take turns with fellow Swiss aviator Bertrand Piccard to fly the Solar Impulse 2 in a trip that will take them around the world in a dozen legs until early August. Their aircraft weighs only as much as a large car, but the wings span as wide as a large passenger jet, and are covered with solar panels that power four propellers. Borschberg and Piccard have said they would use self-hypnosis and yoga to endure the long solo flights and the extreme changes in temperature. The trip will take the Solar Impulse 2 to Oman, India, Myanmar and China. The plane will then cross the Pacific to Hawaii and on to the US mainland. Following a flight across the Atlanic and over the Mediterranean region, the pilots are planning to return to the capital of the United Arab Emirates. EPA/ALI HAIDER ORG XMIT: XAH

The solar-powered aircraft Solar Impulse 2 is prepared for a test on April 14 in Payerne, Switzerland.

Technicians prepare the Solar Impulse 2. A previous aircraft with the same name completed a trip across the United States without using fuel in 2013.

Sun-powered plane Solar Impulse 2 HB-SIB is seen during its first exit for test on April 14, 2014 in Payerne, a year ahead of their planned round-the-world flight. Solar Impulse 2 is the successor of the original plane of the same name, which last year completed a trip across the United States without using a drop of fuel. AFP PHOTO / FABRICE COFFRINIFABRICE COFFRINI/AFP/Getty Images ORIG FILE ID: 528961601

People stand around he new experimental aircraft "Solar Impulse 2" during the first exit for solar generator tests at the airbase in Payerne, Switzerland, Monday, April 14, 2014. The aircraft is the second solar plane of the Solar Impulse project. The main goal of the project is to circumnavigate the world with an aircraft, with a 72 metres wingspan, powered only by solar energy. (AP Photo/Keystone, Laurent Gillieron) ORG XMIT: LG111

epa04166818 Experimental aircraft 'Solar Impulse 2', HB-SIB, is pictured during solar generator tests at the airbase in Payerne, Switzerland, 14 April 2014. The aircraft HB-SIB is the second solar plane of the Solar Impulse project. The main goal of the project is to circumnavigate the world with an aircraft, with a 72 metre wingspan, powered only by solar energy. EPA/LAURENT GILLIERON ORG XMIT: LG197 SOL

Sun-powered plane Solar Impulse 2 HB-SIB is seen during its first exit for test on April 14, 2014 in Payerne, a year ahead of their planned round-the-world flight. Solar Impulse 2 is the successor of the original plane of the same name, which last year completed a trip across the United States without using a drop of fuel. AFP PHOTO / FABRICE COFFRINIFABRICE COFFRINI/AFP/Getty Images ORIG FILE ID: 528964413