Portal Space Systems brings its solar thermal propulsion system up to full power during test

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a ...
GeekWire

Portal Space Systems opens its doors for a sneak preview of solar propulsion system

VIPs cut the ribbon at Portal Space Systems’ HQ in Bothell, Wash. From left: U.S. Rep. Suzan DelBene; Portal co-founders Prashaanth Ravindran, Jeff Thornburg and Ian Vorbach; and Bothell Mayor Mason ...

Mysterious object entering solar system much larger than previously thought, could be ‘alien technology’

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

We need a solar sail probe to detect space tornadoes earlier, researchers say

Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to ...
New Atlas

ORNL tackles control challenges of nuclear rocket engines

Historically, getting into space and sending heavy payloads across or out of the Solar System has relied on chemical rockets. They do the job, and very well, but they suffer from the fact that even ...