In A Nutshell. Hemp and marijuana both come from the same species of plantâcannabis. However, hemp is generally harvested from a subspecies of the Cannabis genus, which, unlike marijuana, has virtually no psychoactive properties. Hemp varieties are grown for their seed, oil, and fiber, whereas marijuana is grown for medicinal, recreational, and spiritual purposes.
Theyâre the correct shape, theyâre coming in at just the right angle, and theyâre covered in an appropriate skinâ¦. Space may be the final frontier, but coming back to Earth after a visit to a planetary neighbor, or even a high orbit, can be perilous. As anyone whoâs seen the movies The Right Stuff and Apollo 13 knows, a spacecraft must reenter Earthâs atmosphere at a precise angle to avoid burning up or skipping back out into space. Well before the space program, astronomers were aware that meteorites burned up when they fell into our atmosphere. The reason, notes Allie Anderson, a graduate student in Aeronautics and Astronautics, is friction with air molecules (remember, thereâs no air in outer space).
What happens? Basically you are sucked irresistibily into the black hole's accretion disc, a whirlpoollike mass of gas and dust surrounding the hole. As you get closer and closer to ground zero, the temperature gets higher and higher. At 100 miles away you're heated up to 2,000,000 degrees Kelvin.hatever's left over then collapses into a very small, very dense core. If by the time you get down to neutron-star stage (very very dense) you find your mass is still three times that of the sun, then you continue to collapse into a black hole, where the pull of gravity is so great that even light cannot escape.