SpaceX is quietly reshaping its Mars strategy around a new kind of astronaut: a Tesla-built humanoid that can work where humans cannot yet safely live. The company wants Optimus, Tesla’s bipedal robot ...

Before the first human boot sinks into Martian dust, an army of machines will have already been at work for years, testing the air, carving out shelter and assembling the hardware that keeps people ...

Scientists have discovered traces of organic molecules on the Red Planet and are not ruling out the possibility that they were produced by living organisms.