We could be one step closer to finding out if there is in fact life on Mars after a spacecraft successfully entered the orbit around the planet.
After almost a year of travelling the universe to get there, Nasa's Maven probe is beginning its one year mission to study the Red Planet's atmosphere.
ITV News reporter Sally Biddulph has the details:
Nasa's Maven spacecraft enters into the orbit of Mars after a 10-month, 442 million-mile journey.
Scientists at Nasa say that a ship they blasted into space 10 months ago is expected to reach the red planet on Sunday.