Space

Anyone live in the Syracuse area of New York? This was the fireball that crashed into the atmosphere on Wednesday.

Watch the upper-left part of the video.




 
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Pretty informative and interesting video about the Mars helicopter that rode along with Perseverance.




 
Scientists Announce a Physical Warp Drive Is Now Possible. Seriously.

The study is understandably pretty thick (read the whole thing here), but here’s the gist of the model: Where the existing paradigm uses negative energy—exotic matter that doesn’t exist and can’t be generated within our current understanding of the universe—this new concept uses floating bubbles of spacetime rather than floating ships in spacetime.

The physical model uses almost none of the negative energy and capitalizes on the idea that spacetime bubbles can behave almost however they like. And, the APL scientists say, this isn’t even the only other way warp speed could work. Making a model that’s at least physically comprehensible is a big step.
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Of course, there’s one gigantic caveat here: The concept in this paper is still in the “far future” zone of possibility, made of ideas that scientists still don’t know how to construct in any sense.

“While the mass requirements needed for such modifications are still enormous at present,” the APL scientists write, “our work suggests a method of constructing such objects based on fully understood laws of physics.”

But while a physical drive may not be a reality today, tomorrow, or even a century from now—let’s hope it’s not that long—with this exciting new model, warp speed travel is now a lot more likely in a much shorter timespan than we previously thought.
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So the huge problem with the current paradigm is that is uses "negative energy" which isn't known to actually exist.

But our new theory solves that by using "almost none" of that?  Wouldn't it have to actually use *none* of that for that to fix the problem?

"This stuff doesn't exist but  so as long as we only need a little bit of it we should be fine."  :confucius

 
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Some of the social media reaction to this has been gold. One of my favorites (can't find the source):

"Oh but McDonald's ice cream machine still broke"
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