Physics

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Explain the reasoning that leads astronomers to believe that our galaxy is surrounded by a cloud of ... Started by laurencescou	1 Replies 58 Views	Jul 27, 2018 by asdfghjkl;
Explain how giant molecular clouds give rise to spiral tracers as they move through a disk with ... Started by Davideckstein7	3 Replies 98 Views	Jul 27, 2018 by lucas dlamini
Discuss the evidence that supports the theory that there is a supermassive black hole at the center ... Started by Alainaaa8	1 Replies 74 Views	Jul 27, 2018 by meganlapinski
Describe the general features of the monolithic collapse hypothesis, with an explanation of how the ... Started by jon_i	1 Replies 135 Views	Jul 27, 2018 by Natalie4ever
Elliptical galaxies contain a mix of old and young stars. a. True b. False Indicate whether the ... Started by soccerdreamer_17	1 Replies 64 Views	Jul 27, 2018 by iman
When spiral nebulae were first discovered, astronomers quickly identified them as distant groupings ... Started by lindiwe	3 Replies 81 Views	Jul 27, 2018 by bpool94
Spiral and irregular galaxies have active star formation. a. True b. False Indicate whether the ... Started by Caiter2013	1 Replies 82 Views	Jul 27, 2018 by zhanghao
The diameter and luminosity of a galaxy do not determine its type. a. True b. False Indicate ... Started by serike	1 Replies 67 Views	Jul 27, 2018 by Christopher
A standard candle is an object with a known luminosity. a. True b. False Indicate whether the ... Started by Yi-Chen	1 Replies 90 Views	Jul 27, 2018 by ong527
Globular clusters can be used to measure the distance of nearby galaxies. a. True b. False ... Started by Kikoku	3 Replies 84 Views	Jul 27, 2018 by yasmina
Hubble's Law is only effective in measuring the distance to nearby galaxies. a. True b. False ... Started by ENagel	1 Replies 68 Views	Jul 27, 2018 by Pariscourtney
All elliptical galaxies are more massive than the largest spiral galaxies. a. True b. False ... Started by wenmo	1 Replies 77 Views	Jul 27, 2018 by jsm54321
Galaxies contain 10 times as much dark matter as visible matter. a. True b. False Indicate ... Started by iveyjurea	1 Replies 80 Views	Jul 27, 2018 by emilymalinowski12
Giant spirals are the largest galaxies in the Universe. a. True b. False Indicate whether the ... Started by Kthamas	3 Replies 66 Views	Jul 27, 2018 by Eazy416
Gravitational lensing can be used to detect the presence of dark matter. a. True b. False ... Started by pragya sharda	1 Replies 65 Views	Jul 27, 2018 by kingfahad97
Starburst events are a common outcome of galactic collisions. a. True b. False Indicate whether ... Started by Yi-Chen	1 Replies 73 Views	Jul 27, 2018 by iceage
The Milky Way galaxy has collided with several other large galaxies in its lifetime. a. True b. ... Started by skymedlock	1 Replies 63 Views	Jul 27, 2018 by anoriega3
Gentle gravitational tidal forces appear to be necessary to create spiral arms. a. True b. False ... Started by ssal	3 Replies 81 Views	Jul 27, 2018 by randomguy133
The farthest galaxies that astronomers have seen are all elliptical galaxies. a. True b. False ... Started by dejastew	1 Replies 79 Views	Jul 27, 2018 by Eazy416
The identification of spiral nebulae as large groupings of stars outside of our own galaxy was ... Started by jeatrice	1 Replies 68 Views	Jul 27, 2018 by lorealeza77
In which of the following types of galaxies would you expect to find active star formation? a. ... Started by anshika	1 Replies 111 Views	Jul 27, 2018 by leeeep
Which types of galaxies lack an ordered structure of stellar orbits? a. elliptical galaxies only ... Started by cmoore54	3 Replies 99 Views	Jul 27, 2018 by Leostella20
Which types of galaxies would contain very little gas and dust? a. elliptical galaxies only b. ... Started by plus1	1 Replies 94 Views	Jul 27, 2018 by jsm54321
NASA's Hubble Deep Field images and GOODS program observations have shown that ____. a. there are ... Started by Wadzanai	1 Replies 70 Views	Jul 27, 2018 by manuelcastillo
The structure of most galaxies is most apparent using near-infrared images that show the locations ... Started by Kthamas	1 Replies 93 Views	Jul 27, 2018 by owenfalvey