BBC Click: Up close with NASA's Mars Curiosity Rover - Video

Nasa's Curiosity rover landed on the surface of Mars in August 2012 after a nine month journey in space.

Its mission is to continue the space agency's exploration of the Red Planet, analyse its rocks, look for water and prepare for human exploration.

BBC Click's Spencer Kelly has been given rare access to its earthbound twin at Nasa's Jet Propulsion Laboratory where scientists are using the machine to help them solve problems its Mars counterpart might experience.

NASA Mars: Up close and personal March 25 2010

On Thursday night, March 25, many people may look up at the sky and ask the question, "What's that bright star next to the moon?"

The answer for Thursday night is Mars, but that answer changes night by night as the moon travels along the ecliptic, the path the sun, moon and planets follow across the sky. If you ask the question again on Monday night, March 29, the answer will be the ringed planet Saturn.

Such conjunctions of the moon and planets are regular reminders of how rapidly the moon moves across the sky.

Mars was in opposition to the Sun on Jan. 29, when it appeared 14 arcseconds in diameter, 1/120 of the diameter of the moon. Two months later, it is much farther away, and has shrunk to only 10 arcseconds in diameter.

This will be your last chance to get a good look at Mars until it approaches the Earth again in 2012

A handout image from the US Geological Survey in 2008 shows a mosaic of the Schiaparelli hemisphere of the planet Mars projected into point perspective, a view similar to that which one would see from a spacecraft.

A journey from Earth to Mars could eventually take just 39 days, according to a rocket scientist who has the ear of the US space agency.
(AFP/USGS/File)