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With commercial spacewalk, Polaris Dawn makes history

Polaris Dawn astronauts exit their SpaceX capsule on Sept. 12. Credit: Polaris Program

September’s five-day Polaris Dawn mission included an altitude record and the first spacewalk by private citizens, showing a vision for the future for commercial human spaceflight.

New missions, better warnings aim to mitigate solar storms

Solar flares peaking during the May 10 solar storm. Credit: NASA

The strongest solar storm in two decades struck the planet in May, disrupting satellites and spreading a brilliant array of northern lights across the skies.

Commercial space stations trekking new paths to orbit

A rendering of the fully built-out Orbital Reef station, designed by Blue Origin and Sierra Space. The first segment of the station is planned for launch in 2027. Credit: Blue Origin

As NASA prepares to deorbit the International Space Station, four commercial space stations are planned to succeed it.