NASA Successfully Tests Revolutionary Rocket That Could Get Us to Mars Faster
Hypx@kbin.social to 
sciencealert.com
After setting foot on the Moon, the next destination for humankind is Mars, which presents a whole new set of challenges in speedy, long-distance space travel.
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NASA invented a space ship powered by a rotary engine? Noice, at least until the apex seals give out, but they should be good for 80k at least.
Wankel and Mazda shine blessings upon you and your RX family
The wankel and rdre aren't really related, but they're similar in that they're both oddball engines with surprising performance.
Of all of my near future rocket engine predictions, a working aerospike rdre was not on my list... I'm honestly very impressed!