There are more planets and stars than there are grains of sand on earth - so why do we think we are the only living beings in this vast universe? View the storys below and make up your own mind.
Crop Circles
On 28 January 1959 ten cross country skiers, eight men and two women, led by Igor Dyatlov, set off on a skiing expedition to Otorten Mountain in the northern Urals. The only surviving member, Yury Yudin, fell ill and had to leave the group.