Just as it does with food, the body tries to chemically break down medicines as soon as they enter the body. Most drugs taken by mouth enter the stomach or small intestine and then are sent to the liver. The liver contains protein molecules called enzymes that chemically modify drugs and other non-food substances.
Pluto: The Farthest Planet (Usually) Pluto, the ninth planet in our solar system, was not discovered until 1930 and remains a very difficult world to observe because it's so far away. At an average distance of 2.7 billion miles from the Earth, Pluto is a dim speck of light in even the largest of our telescopes. It takes almost 249 years to make one swing around the Sun, in a long looping orbit that takes it above and below the path of the other planets.
Right now the farthest that we have sent a spaceship that has people onboard has been to the moon. That's only 250,000 miles away. That seems far, but the sun is 93,000,000 miles away! The furthest unmanned spaceships are the Pioneer and Voyager probes that visited Jupiter, Saturn, Neptune, and Uranus.e have put telescopes in space, like the Hubble Space Telescope. A telescope in space is above Earth's atmosphere. This lets us see more clearly and also lets us see kinds of light, like ultraviolet and X-rays, that don't go through the atmosphere.