Nasa's Maven spacecraft enters into the orbit of Mars after a 10-month, 442 million-mile journey.
The spacecraft will explore the "mystery" of climate change on Red Planet.
Scientists confirmed that the Maven science vessel will now be able to beam back data after the mission successfully placed it into orbit.
Scientist have confirmed an unmanned Falcon 9 rocket blasted off from Cape Canaveral Air Force Station in Florida deliver a cargo ship to the International Space Station for NASA.
The 208-foot tall booster, built and launched by privately owned Space Exploration Technologies, bolted off its seaside launch pad at 5.52am GMT, slicing the night-time sky with a bright plume of light as it headed into orbit.
Ten minutes later, the Dragon cargo capsule perched on top of the rocket was released to begin a two-day journey to the space station, a $100 billion research complex that flies about 260 miles above Earth.
Later tonight, a Nasa spacecraft is expected to reach Mars.
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.