As Virgin Galactic nears christening the first of its next-generation spaceship designed to launch customers on suborbital flights, it still is missing a key component—a name.

The self-described "commercial spaceline," which was founded by British tycoon Richard Branson, has turned to the public to vote on what to call the new vehicle. The spaceplane will be a member of Virgin Galactic's Delta-class fleet, succeeding SpaceShipTwo, which carried Branson and 31 others on 12 short hops above the US-defined boundary between Earth and space.

"You can vote for one of four finalist names for a spaceship that will join Virgin Galactic's growing fleet and the next chapter in our journey to expand access to space," the company announced on its website on August 11. "Name a Virgin Galactic spaceship, shape a piece of spaceflight history."

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Solar storms, like the one in August 1972 that hit during the gap between the Apollo 16 and Apollo 17 missions, throw bursts of protons intense enough to raise an astronaut's cancer risk or even cause radiation sickness. Earth's atmosphere and magnetic field absorb this radiation, but crews heading to the Moon or Mars won't have that protection, and no spacecraft built so far has enough shielding to stop it.

A team led by Jordan Houri and Oren Milstein of StemRad, an Israeli-American startup developing personal protective equipment against radiation, proposed that we could solve this by shielding the astronauts instead of shielding the spacecraft.

To test this idea, StemRad’s team flew a wearable radiation-shielding vest called AstroRad to the Moon and back aboard NASA's uncrewed Artemis I mission, then used the flight data to calculate how it would perform during an actual solar storm. It turns out the vest would perform roughly as well as the Orion’s heavily shielded onboard shelter the crew was supposed to hide in to wait out a storm.

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