NASA’s oldest active astronaut just gave Earth a jaw-dropping look at one of the planet’s rarest and most beautiful phenomena ...

Soviet Union’s cosmonaut Yuri Gagarin became the first human in history to travel to space. Lasting there for just 108 ...

Six decades after Yuri Gagarin became the first person to travel into outer space, the human race recorded another milestone ...

The project aims to investigate the 'Cosmic Dark Ages,' the period from the Big Bang until the formation of the first stars.