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).
Either Earth would career out of its orbit, spinning out of the solar system, or in the opposite direction, toward the sun, and we'd suffer a deadly warming. In either scenario, a black hole closing on Earth would cause our home planet to be literally ripped apart and swallowed whole. In a contest between a black hole and the Earth, Tyson says, Earth would lose.t would be a bad day for the solar system if we got visited by a black hole, says Neil deGrasse Tyson, director of New York's Hayden Planetarium at the American Museum of Natural History. In our vast galaxy there are billions upon billions of stars, each of which is at a different point in its life cycle.