Live coverage: International Space Station crew lands in Kazakhstan

Three veteran space fliers rode a Soyuz rocket into orbit Wednesday from the Baikonur Cosmodrome in Kazakhstan, heading to the International Space Station for a five-month stay.

A critical test firing Saturday of the four main engines powering the first stage of NASA’s gargantuan Space Launch System moon rocket is the final major hurdle before the fully assembled booster’s costly, oft-delayed launch late this year on an unpiloted test flight.

The announcement Monday of the discovery of phosphine gas in the clouds of Venus — an indicator of possible life — has raised hopes among scientists for new robotic missions to renew exploration of Earth’s planetary neighbor. If Rocket Lab founder Peter Beck gets his way, a privately-funded mission could get the next crack at probing Venus’s soupy atmosphere.