This is due to the fact that when an object aproaches the speed of light, light itself must always be able to pass them at the full speed of light in any which direction. This is relativity, if you look at the equation
(Detlta t)’ = (Delta t)/(1-v^2/c^2)^(1/2)
v cannot ever = c
but as v aproaches c the change in time gets closer and closer to infinity. This meaning that time would go by faster and faster as they aproached the speed of light. So what seems to them to be 1 minute off falling to the ground, is millions of years to us. Meaning millions of years would go by on earth before they actually crashed into the ground.

From our point of view. They would sit there in that spot forever. This is because we cannot watch them for million years to see them move.

So, no black holes, no going back in time, no destruction of the universe, just 7 people forever stuck in the sky. (for a million years or so.)

Cheers!

Reading comprehension FAIL.
Me: Life FAIL. I’m a third year physics student. WTF am I doing at 5:30 in the morning correcting failblog posters physics?

Basically for an object with mass, you need infinite energy to achieve lightspeed.

Which can be more properly expressed as 1 Gram traveling at the speed of light having 21.5 kilotons of TNT-equivalent energy.

It says nothing of infinity, True these are ridiculus amounts of energy, but not infinite. and strictly speaking an item that does not have Mass, does not have energy. Ergo Light has Mass. since it gives heat and light

And there is no proof of anything moving fast to create a blackhole. or even make the universe end. in fact anything that ever made a black hole was standing relativly still.

Oh and MASS never change. WEIGHT will be diffrent on Earth an on the Moon. but MASS will be the same as long as DENSITY is equal.

Form Wikipedia, on time travel via time dilation:

Time dilation is permitted by Albert Einstein’s special and general theories of relativity. These theories state that, relative to a given observer, time passes more slowly for bodies moving quickly relative to that observer, or bodies that are deeper within a gravity well.[42] For example, a clock which is moving relative to the observer will be measured to run slow in that observer’s rest frame; as a clock approaches the speed of light it will almost slow to a stop, although it can never quite reach light speed so it will never completely stop. For two clocks moving inertially (not accelerating) relative to one another, this effect is reciprocal, with each clock measuring the other to be ticking slower. However, the symmetry is broken if one clock accelerates, as in the twin paradox where one twin stays on Earth while the other travels into space, turns around (which involves acceleration), and returns—in this case both agree the traveling twin has aged less. General relativity states that time dilation effects also occur if one clock is deeper in a gravity well than the other, with the clock deeper in the well ticking more slowly; this effect must be taken into account when calibrating the clocks on the satellites of the Global Positioning System, and it could lead to significant differences in rates of aging for observers at different distances from a black hole.
It has been calculated that, under general relativity, a person could travel forward in time at a rate four times that of distant observers by residing inside a spherical shell with a diameter of 5 meters and the mass of Jupiter.[15] For such a person, every one second of their “personal” time would correspond to four seconds for distant observers. Of course, squeezing the mass of a large planet into such a structure is not expected to be within our technological capabilities in the near future.

Time dilation also is in effect near Black holes, but slightly different.
The clock that is near the event horizon would seem to “tick” slower for all observers.

(in the shuttle’s frame of reference, the time is slower comparing to the time in our frame of reference)

First, FORWARD time travel is possible and proven.

What you are referring to is BACKWARD time travel, which was up until recently theoretically impossible.. Until the madness of string theory.

Mass changes with velocity
Energy = Mass
Time changes with velocity
Time changes with gravitational strength
Gravity is a warp in spacetime, not a force
Length changes with velocity

Once you understand those, you may return to being an idiot.