Astronomy (wikipedia)/Quiz02

{What is this? - the magnetic field of Venus - colliding galaxies - a supernovae remnant - the magnetic field of Saturn + a dying star { Wihlem Conrad Rontgen, a pioneer in X-rays is famous for his photo of - a double star + his wife - Barnard's star - The Sun - a supernovae {Earth based infrared observatories tend to be located in - underground - where the air is cold + where the air is dry - near the equator - near the north and south poles {The shortest wavelength of electromagnetic radiation is associated with - X-rays - blue light - infrared + gamma rays - ultra violet {What are the blue things in this figure? - a globular cluster - an open cluster of stars - a cluster of galaxy + one galaxy - none of these is correct {most of the ______ that astronomers observe from Earth is seen in the form of synchrotron radiation, which is produced when electrons oscillate around magnetic fields. - meteors - photons + radio waves - energy - meteorites {Most gamma rays are + bursts - from cold stars - from the Sun - the Andromeda galaxy - from hot stars {Studies in the infrared are useful for objects that are - associated with supernovae - in our own galaxy + cold - inside the solar system - in other galaxies {The best place to observe neutrinos is + underground - near the north and south poles - near the equator - where the air is dry - where the air is cold {An active galaxy is emitting a significant amount of its energy from _____ - magnetism + gravity - nuclear fusion - nuclear fission - exploding stars
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