Cut taxes, cut red tape and encourage the spirit of enterprise.

BBC: Republicans ready for Europe crisis?

Opportunity landed on the Red Planet in January 2004, about three weeks after its "twin", the Spirit rover.

BBC: Opportunity and Curiosity find similar rocks on Mars

Visitors can also purchase red noses, car badges and Spirit in the Sky CDs, the official single from Gareth Gates and the Kumars.

BBC: Red Nose site proves popular

NASA's Spirit and Opportunity rovers, which landed on the Red Planet in 2004, have found plenty of evidence that Mars was far warmer and wetter billions of years ago than it is today.

MSN: Scientists say parts of Mars interior are as wet as Earth's

In the spirit of of the fundraising event she posed for pictures wearing a red Comic Relief wig.

BBC: Samantha Cameron bakes for Red Nose Day