Itokawa

It took the Japanese spacecraft Hayabusa five years to return them to Earth, along with hundreds of other particles from Itokawa, and scientists have been analysing them for clues ever since.

Earth looks incredible when seen from space, thanks to its blue cover of water bodies. Astronomers have captured the breathtaking beauty of our planet in countless photographs and videos. But has this planet always been like what it is today? How did 70 percent of Earth's surface get covered with water? Scientists have long argued the possibilities...

It took the Japanese spacecraft Hayabusa five years to return them to Earth, along with hundreds of other particles from Itokawa, and scientists have been analysing them for clues ever since.

Earth looks incredible when seen from space, thanks to its blue cover of water bodies. Astronomers have captured the breathtaking beauty of our planet in countless photographs and videos. But has this planet always been like what it is today? How did 70 percent of Earth's surface get covered with water? Scientists have long argued the possibilities...