Link to Earth investigated: Time travel, the truth documentary
Documentary Description
TRAVELING THROUGH TIME
Could this science fiction idea turn into reality? Find out what's behind the case for time travel.
Operated by the 2nd Space Operations Squadron in Colorado, the Global
Positioning System (GPS) is the world's only global utility and the
largest military satellite constellation.
One of the world's largest and most respected centers for scientific
research is CERN, the European Organization for Nuclear Research. Its
goal is fundamental physics, learning what the universe is made of and
how it all works.
In addition to the three-dimensional world we live in, we also live in
the fourth dimension of time. In fact, the 4th dimension of time is so
interwoven with the other three dimensions of space, that physicists now
have one name for the four dimensions altogether: space-time.
Black holes are believed to form from stars or other massive objects if
and when they collapse from their own gravity to form an object whose
density is infinite — in other words, a singularity.
The gravitational pull of a black hole stretches and warps space-time
around it to an incredibly deep cone-shaped hole. Because the gravity of
the black hole is so intense it drastically slows down time.
The speed of light is 186,000 miles per second. Nothing travels faster
than the speed of light, which acts as a cosmic speed limit.
Chandra X-Ray Observatory is located 200 times higher than the Hubble
Telescope and provides scientists with new data on black holes by
observing particles before they fall into a black hole. At 45 feet long,
it is the largest satellite the shuttle has ever launched.
Chandra X-Ray Observatory sends back x-ray images ten times sharper than
the best previous x-ray telescope. That's the equivalent of reading a
stop sign from twelve miles away.
