NASA's Curiosity Rover has discovered long carbon chains on Mars. On Earth, molecules like these are overwhelmingly produced ...

A mosaic of two pictures showing the rover arm after scanning and sampling one of the rocks discussed in the paper. The rock itself is in the lower right and clearly shows the hole where the sample ...

The study, published in the journal Science, said the sample provides insight into the composition of the upper part of the mantle and the chemical processes that take place when this rock ...