BBC Horizon: Is Everything We Know About The Universe Wrong?
2010 · 60 MIN · IMDB 7.4 · 52 VOTES · DIR. Rob Liddell
Overview
There’s something very odd going on in space – something that shouldn’t be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial vacuum cleaner. Sasha Kaslinsky, the scientist who discovered the phenomenon, is understandably nervous: ‘It left us quite unsettled and jittery’ he says, ‘because this is not something we planned to find’. The accidental discovery of what is ominously being called ‘dark flow’ not only has implications for the destinies of large numbers of galaxies – it also means that large numbers of scientists might have to find a new way of understanding the universe. Dark flow is the latest in a long line of phenomena that have threatened to re-write the textbooks. Does it herald a new era of understanding, or does it simply mean that everything we know about the universe is wrong? .
Dialogue Timeline — 597 lines
A SAMPLE ACROSS THE RUNTIME — EVERY LINE IS SEARCHABLE
00:00:02 14 billion years ago there was nothing.
00:02:29 Gripping not just galaxies but whole clusters of galaxies spanning billions of light years of space.
00:04:41 And maybe we should just take things face value.
00:07:36 these relations in different situations.
00:09:48 If the observations don't fit
00:12:24 ..when everything grinds to a halt.
00:15:23 the universe starts out essentially dawdling with very low expansion rate
00:18:35 you know, one end of the sky to the other.
00:21:01 something that any of us working on it would say we know for sure.
00:23:58 a galaxy should move more slowly than those closer to the centre.
00:26:29 Dark matter explained the flat rotation curves and meant that the laws of physics still made sense.
00:28:52 The idea of finding a new particles isn't as strange as it seems.
00:31:27 Instead he's buried his equipment Ð’Ð… mile under the frozen plains of Minnesota.
00:33:27 If we're very lucky then we will have detected a particle that makes up dark matter.
00:36:05 The universe continues to expand.
00:38:53 Inflation theory had already established the big bang was no ordinary explosion.
00:41:17 Or something entirely new.
00:43:22 Well, that new stretched-out space has to have the same properties as the old space
00:45:35 it's the best model that we have, the most complete description of creation there's ever been.
00:48:12 His office is at NASA's Goddard Space Flight Center.
00:50:31 Like dark matter and dark energy, these galactic movements were another mystery.
00:53:24 we don't want to be, jump on fly-by-night theories, um, we want to make sure that if theory
00:55:56 one experiment but by many different groups.
00:58:44 Subtitles by Red Bee Media Ltd