OrlonKronsteen
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All Things Space
- Thread starter Antimatter
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Nice video. I only disagree that the best way to destroy a civilization is to bombard a planet with relativistic weapons. You target the stars, not the planets or you risk off world colonies surviving.
m7600
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Here's another lecture by Kipping in which he argues (contrary to what he says in his other lecture, shared by @OrlonKronsteen) why we might be surrounded by alien civilizations.
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Another possibility is we are the most advanced civilization in this corner of the Galaxy and that's why we are not seeing anyone... or the others use technologies to communicate we have not developed yet. There are many better ways to communicate in long interstellar distances than radio, that mostly becomes noise after around 1 light year. Gravimetric wave, tachyon beans (if tachyons even exist.), etc.
In other words, everyone may be chatting around us. We are just deaf.
Of course, we should be seeing something but in some ways it's like trying to locate a needle 10km away with a pair of cheap binoculars... we MAY be able to see star sized structures if they are out there somewhere....
alice_ashpool
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Just fold their local area of space down to 2 dimensions. EZ kill.
alice_ashpool
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Read both Sagan's Contact and Stanislaw Lem's His master's Voice recently, cool books about "contact" which are nicely far away from "space fantasy" or even "low imagination" sci-fi.
alice_ashpool
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Also it's mid-term holidays at the moment so I am brushing way up on my undergrad level physics despite only teaching child vape addicts. Got Feynman's lectures on lock and a 1920s book on calculus, a discipline which for me is entirely pointless but which I am steadily attempting to (re) master.
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I see what you did there...
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m7600
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From the creators of the Eye of Sauron, we now bring you: the Anus of Sauron.
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Of course, telescopes don’t see the past, but they detect the light that was emitted billions of years ago. This is because light can only travel 300.000 km/s in a vacuum. So, it takes significant time for even the light to travel across the vastness of the universe.
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I learned about this only today. Wow.
This hits home especially because I like the original David Bowie song as well.
This hits home especially because I like the original David Bowie song as well.
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NASA finally opens capsule to potentially hazardous asteroid 'Bennu' that may contain seeds of life
Two tight fasteners kept the majority of the Bennu asteroid sample from scientists since it returned to Earth in September. Now they've finally prised it open.
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'We do not understand how it can exist': Astronomers baffled by 'almost invisible' dwarf galaxy that upends a dark matter theory
Astronomers have discovered a super diffuse dwarf galaxy, named Nube, which gives off barely any visible light and seemingly defies explanation.
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Japan’s moon landing picture might be the space photo of the decade
It's really hard to touch down on the lunar surface.
