ESA has selected five launch vehicle startups to proceed to the next phase of a competition for launches and launch vehicle ...

Elon Musk wants to land humans on Mars in the next decade. NASA also dreams of colonising the red planet. Earth is getting too hot, and to ensure the survival of the human species, experts are looking ...

This puzzle didn’t play fair — hidden moves, fake-outs, and traps at every turn. It’s one of those challenges that tricks you when you least expect it. Let’s see if we can outsmart it.