So molecules like this ended up on Earth. In fact, what we call meteorites are pieces broken away from comets and asteroids that came in our atmosphere and left their extra-terrestrial organic matter on the surface of primitive Earth.这样的分子最终来到了地球上。事实上，我们所说的陨石是来自彗星...
Its atmosphere is composed of hydrogen, helium and methane, yet pressure causes about a third of this distant planet to behave as a liquid. Larger telescopes may be able to discern a few of Uranus’ moons, for Titania (the brightest) is around magnitude 14. Let’s begin our lunar ...
Meteors are classified into three major types known as iron, stony-iron and stony. Iron meteors are comprised of 100 percent iron and nickel. Stony-iron meteors are made up of 50 percent iron and 50 percent silicates. Stony meteors are composed of 10 to 15 percent iron and nickel with 85...
A dwarf galaxy, as the name implies, is a small galaxy, usually composed of around 100 million to a few billion stars. For comparison, the Milky Way...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
Comets are primarily made of dust, rock, and ice, and as they approach the sun they warm up and give off water and dust particles (which form comets’ distinctive tails). We are used to observing average-sized comets which eject gases, giving the comet a tiny kick and changing its traje...
What shape are the orbits of most comets? What is the shape of Halley's Comet? What is the orbital cavity? What is orbital plane in astronomy? What shape is Earth? What is the shape of the Kuiper belt? What is the orbital eccentricity for 'Oumuamua?
Comets are distinguished from asteroid-ds by the existence of an extended, gravitationally unbound atmosphere nearby their central core. This atmosphere has parts named as the coma which is surrounded by its nuclei (the central part immediately surrounding the core) and the tail (a usually linear ...
At magnitude +1, it's one of the brightest stars in the night sky. It's also one of the four Royal Stars of the Persian culture, and called the Watcher of the South. The other stars are Aldebaran (Watcher of the East), Regulus (Watcher of the North) and Antares (Watcher of the...
What is an Oort cloud made of? What is Uranus made of? What are the inner planets made of? How was Ceres formed? What does the name Eris mean? The Earth's atmosphere is mostly composed of which two gases? Is Eris an extrasolar planet?
Organic compounds are carbon compounds and are composed of carbon atoms. Different functional groups present in the organic compounds belong to a different class or family of organic compounds. Answer and Explanation:1 Become a Study.com member to unlock this answer!Create your account ...