UNSW scientists - led by Professor Martin van Kranendonk - have shown a group of Mars specialists the secrets of the remote Pilbara's ancient rocks - all in preparation for NASA's and ESA's Mars 2020 missions.
If there ever was life on Mars it may still be there, writes Malcolm Walter. And if we can demonstrate an independent origin of life, the consequences will be profound.
India's mission to Mars will search for methane and could reveal an important aspect about the history of water on the red planet, writes Malcolm Walter.