China claims that the space programme is for peaceful purposes – but the US doesn't entirely agree
Want to learn more about Martian tsunamis or keeping fit in space? Now you can
A US company has gained permission to carry out the first private mission to the moon, so are we nearer to settling on our celestial neighbour?
For years now, scientists have been building a body of evidence that Mars looked very different in its distant past. There are features on the Martian surface that can only form in the presence of large bodies of water. Sarah Kaplan finds out more
The work could solve one of the central problems with the idea that Mars was covered with life-supporting oceans in its past
The move will be the first step on the way to colonising Mars - which Musk has previously said is his insurance plan for human life on Earth
Toilet rolls, chocolate biscuits and orange juice were among the products that have shrunk in size, meaning customers are paying more for less
The Big Question: We have our biggest chance yet of finding proof of living things on the red planet, and some of the world’s most developed technology is going to help us do it
Tomatoes, peas, rye, rocket, radish and cress have grown in soil from Mars
Exomars 2016 is the UK's first mission to the Red Planet since the failed Beagle 2 programme in 2003
As ISS astronauts return to a battery of tests, NASA is gathering data for even longer trips
'Mars was a very different planet to the one we are able to see today'
Customers are advised to contact Mars' customer care team
A full list of products affected was reportedly available at the German Mars website, which was not responding on Tuesday afternoon
Measures affects all Mars and Snickers products, Milky Way Minis and Miniatures as well as certain kinds of Celebrations
Unusual mineral outcrops on Mars look very similar to microbe-created formations here on Earth