Space Travel and Technology of Interstellar Exploration – New Documentary

Space Travel and Technology of Interstellar Exploration – Documentary 2016
To one day, reach the stars.

When discussing the possibility of interstellar travel, there is something called “the giggle factor.” Some scientists tend to scoff at the idea of interstellar travel because of the enormous distances that separate the stars. According to Special Relativity (1905), no usable information can travel faster than light locally, and hence it would take centuries to millennia for an extra-terrestrial civilization to travel between the stars. Even the familiar stars we see at night are about 50 to 100 light years from us, and our galaxy is 100,000 light years across. The nearest galaxy is 2 million light years from us. The critics say that the universe is simply too big for interstellar travel to be practical.

Similarly, investigations into UFO’s that may originate from another planet are sometimes the “third rail” of someone’s scientific career. There is no funding for anyone seriously looking at unidentified objects in space, and one’s reputation may suffer if one pursues an interest in these unorthodox matters. In addition, perhaps 99% of all sightings of UFO’s can be dismissed as being caused by familiar phenomena, such as the planet Venus, swamp gas (which can glow in the dark under certain conditions), meteors, satellites, weather balloons, even radar echoes that bounce off mountains. (What is disturbing, to a physicist however, is the remaining 1% of these sightings, which are multiple sightings made by multiple methods of observations. Some of the most intriguing sightings have been made by seasoned pilots and passengers aboard air line flights which have also been tracked by radar and have been videotaped. Sightings like this are harder to dismiss.)

But to an astronomer, the existence of intelligent life in the universe is a compelling idea by itself, in which extra-terrestrial beings may exist on other stars who are centuries to millennia more advanced than ours. Within the Milky Way galaxy alone, there are over 100 billion stars, and there are an uncountable number of galaxies in the universe. About half of the stars we see in the heavens are double stars, probably making them unsuitable for intelligent life, but the remaining half probably have solar systems somewhat similar to ours. Although none of the over 100 extra-solar planets so far discovered in deep space resemble ours, it is inevitable, many scientists believe, that one day we will discover small, earth-like planets which have liquid water (the “universal solvent” which made possible the first DNA perhaps 3.5 billion years ago in the oceans). The discovery of earth-like planets may take place within 20 years, when NASA intends to launch the space interferometry satellite into orbit which may be sensitive enough to detect small planets orbiting other stars.


Comments 23

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  1. 24:59 It's Einstein's cock on the block. ….WHAAAAT??? I thought the first time I watched this lol. It's like an analogy if Einstein was wrong about his theory he put forward. It was a bit noisy in the background when I watched it lol

  2. this is for everyone out there who absolutely HATES commercials every 5 seconds.Download ad blocker for free and then watch yt won't have to deal with this chit again.

  3. That Is Why You Need Shields & Warp Drive With Out That You Ain't Going Anywhere Not With Slower Than Snail Pace Rocket Engines. Rocket's Might Seem Fast To You In Your Back Yard But Out There In Space They Are Slower Than A Snail.

  4. When public channels start click baiting, that's when people start boycotting. Way to go the moronic route and alienate a quarter of your audience…

    … Discovery Channel was never that much to my liking anyway. Personally, I won't miss it.

  5. This is just a old documentary but Cost is just a word… How do you place a value with a"currency" system that has no real value itself being it is made up to begin with…There are resources and nothing more..Money has no real value and trying to use the word "cost" as a excuse its does not even make sense. We will end up consuming the limited resources making the same crap over and over to define a useless measuring system called wealth…The fact is you have a certain amount of things , you get to use and consume them ….Its what you do with them that matters…Making and remaking the same crap over and over out of greed is pure stupidity. The words "cost" should be changed to "WASTE"….seems greed is what humans value most!

Space Travel and Technology of Interstellar Exploration – New Documentary

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