Passionate about Mars, the professor at Arizona State University has been part of the missions of the legendary robots that NASA has sent to the red planet since the 90s, such as 'Curiosity,' 'Spirit, ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

HERE’S a question: do you know what happens to pee in space? If yes, urine with a chance of nailing this quiz. If not, you ...