Kauai is balmy year-round, with a constant light breeze that means it never feels unbearably hot

As our flight took off from San Francisco International Airport and headed west over the Pacific, leaving the great landmass that is North America (...)

Solar Impulse 2 pilots Bertrand Piccard and Andre Borschberg, celebrate after Borschberg landed at Kalaeloa Airport, Hawaii. Photograph: Eugene Tanner/AFP/Getty Images

A Swiss man attempting to circumnavigate the globe with an aircraft powered only by the sun’s energy landed in Hawaii on Friday, after a record-breaki(...)

The Solar Impulse 2 flies over Nagoya Airport after taking off in Toyoyama, near Nagoya in Japan. Photograph: AP

A solar-powered plane took off from Japan on Monday on the seventh leg of its journey round the world, a trans-Pacific crossing expected to be the tou(...)

People taking pictures as the solar-powered plane Solar Impulse 2 takes off for Hawaii from Nanjing Lukou International Airport in China. Photograph: Johannes Eisele/AFP/Getty Images

A solar plane attempting to fly around the world without a drop of fuel is making an unscheduled stop in Japan due to bad weather. The Swiss pilot of (...)

A young woman hikes along a hanging bridge near Arenal Volcano National Park in Costa Rica.

My husband is really interested in the tropical forest and wildlife. What destination would you recommend which would give him some experience of t(...)

Vietnamese female soldiers of Liberation Force march during a military parade as part of the 40th anniversary of the fall of Saigon in Ho Chi Minh City. Photograph: Kham/Reuters

Ho Chi Minh City, formerly known as Saigon, was decked out in hammer-and-sickle banners as soldiers marched through the nation’s financial center, 40 (...)

Japanese prime minister Shinzo Abe addresses a joint meeting of the US Congress on Capitol Hill in Washington. Photograph: Gary Cameron/Reuters.

Prime minister Shinzo Abe expressed “deep repentance” over Japan’s role in the second World War in a speech to the US Congress on Wednesday, even as h(...)

The Japanese attack on Pearl Harbor, December 7th, 1941 Photograph: Reuters

The remains of as many as 388 “unknown” US military members who died when the USS Oklahoma was sunk during the Japanese attack on Pearl Harbor will be(...)

Greenpeace activists on the Polar Pioneer drill rig in the Pacific Ocean.  Photograph: Reuters/Vincenzo Florama/Greenpeace

Six Greenpeace activists have rappelled down from an oil rig in the Pacific Ocean after spending six days living on the structure to protest against d(...)

A handout picture released by the US National Oceanic and Atmospheric Administration (NOAA) shows a map of the region (white cross) in Papua New Guinea where a 7.5 to 7.6 magnitude earthquake occured on Monday. Photograph: EPA

A major earthquake with a magnitude 7.7 struck off Papua New Guinea on Monday, official monitors said, and a tsunami warning was issued soon after.The(...)