Something astoundingly huge in a distant region of space is attracting whole galaxies towards it. Known as “The Great Attractor”, it must be monumental in size to generate such a gravitational pull; in fact, many physicists argue that it is physically impossible for such a massive object to exist at all.
Hydrogen is a light, odorless gas, which, given enough…
Hydrogen is a light, odorless gas, which, given enough time, turns into people. First hydrogen has to turn into helium (in a star), then the helium has to turn into even heavier elements (also in a star), then the heavier elements need to turn into a planet (after the star explodes), then that planet has to produce life (through abiogenesis(we’re actually not quite sure how this specifically happened on earth), and then that life has to turn into people (through evolution).
If you could fold a piece of paper in half 103 times it would be as…
If you could fold a piece of paper in half 103 times it would be as thick as the observable universe.
The largest known star is 4,982,686,912 times bigger…
The largest known star is 4,982,686,912 times bigger than the sun, and is only 9,500 light-years away. If placed at the center of the Solar System, its photosphere would engulf the orbit of Jupiter, although the radius is not known for certain and may be larger than the orbit of Saturn.