Gizmodo : Environment

A new experimental mission by NASA is now flying in orbit, aiming to use photons from the Sun to propel its way to higher altitudes.

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Gizmodo

Stratolaunch flew its Talon-A hypersonic vehicle for the first time after dropping it out of the belly of Roc, an utterly massive aircraft with a 385-foot wingspan. Meanwhile, SpaceX flew its Starship for the third time in a test that pushed the limits of the megarocket. Catch up on these and other top science stories…

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Gizmodo

California startup Stratolaunch completed the first powered flight of its Talon-A hypersonic vehicle as it works to develop a reusable version that’s capable of carrying science payloads and flying them at five times the speed of sound.