Top 10 astronomy facts Selected as the most interesting among astronomy related questions in Astronomy quiz Which astronomical discovery was nicknamed 'Little Green Man'?Pulsar. In 1967 Jocelyn Bell Burnell and Antony Hewish first observed pulses separated by 1.33 seconds, originated from the same location on the sky. It was not until a second pulsating source was discovered in a different part of the sky that the "LGM hypothesis" was entirely abandoned.Created by: globalquiz.orgdiscoveries facts » This is the aurora of Jupiter. What are the visible bright spots caused by?Jupiter moons. Jupiter's moons, especially Io (spot on the left), are powerful sources of auroras on Jupiter. These arise from electric currents along field lines, generated by a dynamo mechanism due to the relative motion between the rotating planet and the moving moon.Created by: globalquiz.orgplanets facts » This unique line of about 20 stars is known as ...Kemble's cascade. It was named by in honour of Father Lucian Kemble (1922–1999), a Franciscan friar and amateur astronomer who wrote a letter to Houston about the asterism, describing it as "a beautiful cascade of faint stars tumbling from the northwest down to the open cluster NGC 1502" that he had discovered while sweeping the sky with a pair of 7×35 binocularsCreated by: Tschukastars facts » Who first described the heliocentric model of the Sun and planets? ( with the Sun in the center)Aristarchus of Samos was an ancient Greek astronomer and mathematician who presented the first known model that placed the Sun at the center of the known universe with the Earth revolving around it. He was also the first one to deduce the rotation of earth on its axis. His astronomical ideas were often rejected in favor of the incorrect geocentric theories of Aristotle and Ptolemy. Nicolaus Copernicus attributed the heliocentric theory to Aristarchus.Created by: TschukaSolar System facts » What kind of 'natural disasters' happen on the moon?Moonquakes are produced by tidal forces. Moonquakres are much less common and weaker than earthquakes, although they can last for up to an hour - a significantly longer time than terrestrial earthquakes - because of the absence of water to damp out the seismic vibrations.Created by: life-o-holicMoon facts » This is an iron buoy. Where were its atoms formed?In a high-mass star preceding Sun. Radioactive nickel-56 (which decays to the most common isotope of iron) is the last element to be produced before the collapse of a supernova. That is why the iron was abundantly scattered into space after the supernova explosion.Created by: life-o-holicelements facts » Which famous astronomer was also a succesful sportsman?Edwin Hubble. In his younger days he was noted more for his athletic prowess than his intellectual abilities. He won seven first places in a single high school track and field meet in 1906. He also set the state high school record for the high jump in Illinois, and practiced amateur boxing.Created by: globalquiz.orgscientists facts » What are the most luminous objects in the universe?Quasars. A quasar is an extremely energetic source of radiation powered by accretion disc around galaxy's central supermassive black hole. Quasars were much more common in the early universe, as all known quasars are extremely distant.Created by: globalquiz.orgtime facts » What is Brian May, the guitarist and songwriter of Queen, good at?Astrophysics. Brian May studied Mathematics and Physics at Imperial College London, graduating with B.Sc. degree with honours. He earned a PhD in astrophysics from Imperial College in 2007 and is the 4th and current Chancellor of Liverpool John Moores University.Created by: globalquiz.orgQueen facts » Which planet is the brightest seen from Earth?Venus is much brighter than other planets. It is due to its proximity to the Sun (source of light), and bright clouds of sulfuric acid in its atmosphere.Created by: globalquiz.orgtechnology facts » Play astronomy quiz and see all the questions.