Earth, Moon and other planets in the solar system are alive! Not only planets, but other deep space stuff in the galaxy like stars, moons, comets and nebulas... Everyone in the universe are in a good mood today. Let's have some fun stargazing together! Are you proud of your cosmic knowledge? Is astronomy the science you love the most? If so, this tee is just for you! Next time you go stargazing, you could wear this awesome t-shirt! Other cosmos sky-watchers & astrophysics hobbyists will be me amazed!
Tags: asteroids, rings, scifi, science, stars
"A great t-shirt gift idea for any fan of science, physics, astoronoy anything to do with the stars. The Drake Equation, is used to estimate the number of communicating civilizations in the universe, or more simply put, the odds of finding intelligent life in the universe. N = the number of civilizations in our galaxy with which communication might be possible (i.e. which are on our current past light cone); and R* = the average rate of star formation in our galaxy fp = the fraction of those stars that have planets ne = the average number of planets that can potentially support life per star that has planets fl = the fraction of planets that could support life that actually develop life at some point fi = the fraction of planets with life that actually go on to develop intelligent life (civilizations) fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space L = the length of time for which such civilizations release detectable signals into space"
Tags: space, probe, voyager, pluto, spac