Leminal Space

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What is Lemmy?

Leminal Space is an instance of the social link aggregation and discussion platform Lemmy. It is completely free and open, and not controlled by any company. This means that there is no advertising, tracking, or secret algorithms. Content is organised into communities, so it is easy to subscribe to topics that you are interested in, and ignore others. Voting is used to bring the most interesting items to the top.

Hint: If you can't find the community you'd like to join in the All Communities section, try searching for it on Lemmyverse or the Feddit.de community browser, then copy and paste the community link in the Search box.

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Code of Conduct

  1. Bigotry will not be tolerated. This includes racism, sexism, ableism, homophobia or transphobia. Please also familiarise yourself with the Lemmy Code of Conduct.
  2. While this is tacitly covered by rule #1, for the sake of clarity: fascist or alt-right discourse is not welcome here.
  3. Be respectful.
  4. No pornography.
  5. No ads or spam.

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founded 1 year ago
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chrisbit
Kenneth
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We’re building nuclear spaceships again—this time for real (arstechnica.com)
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We’re building thermonuclear spaceships again—this time for real (arstechnica.com)
 
 

Phoebus 2A, the most powerful space nuclear reactor ever made, was fired up at Nevada Test Site on June 26, 1968. The test lasted 750 seconds and confirmed it could carry first humans to Mars. But Phoebus 2A did not take anyone to Mars. It was too large, it cost too much, and it didn’t mesh with Nixon’s idea that we had no business going anywhere further than low-Earth orbit.

But it wasn’t NASA that first called for rockets with nuclear engines. It was the military that wanted to use them for intercontinental ballistic missiles. And now, the military wants them again.

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