Tag: galaxy

55 Does the Milky Way move through space? 2017-09-12T17:51:45.460

41 Why do Black Holes in the middle of galaxies not suck up the whole galaxy? 2017-12-19T15:41:02.040

35 How do we have photos of galaxies so far away? 2017-09-10T15:53:07.167

30 Why is our solar system "tipped" about 63° with respect to the plane of our galaxy? 2013-10-09T01:12:39.320

24 Milky Way Galaxy from Earth 2013-09-25T17:22:09.057

22 Why can't we see distant galaxies with the naked eye? 2015-01-15T11:21:33.647

21 What will happen to life on Earth when the Andromeda and Milky Way galaxies collide? 2014-03-04T07:44:29.917

19 How far is the Earth/Sun above/below the galactic plane, and is it heading toward/away from it? 2013-10-30T13:20:40.497

19 Was the Milky Way ever a quasar? 2014-02-06T17:30:24.577

18 Why are galaxies disk shaped? 2013-12-12T20:41:46.693

17 How many planetary systems exist in our galaxy? 2013-10-09T01:05:29.667

17 Questions about spiral galaxy arms 2014-09-01T13:06:59.670

17 Why do we believe that the super massive black holes at the centers of two merging galaxies would themselves merge? 2015-12-29T01:15:28.083

16 How many stars and galaxies can be seen by the naked eye? 2013-11-26T13:55:43.463

16 Our galaxy, the Milky Way, forms part of a galaxy group called The Local Group. What are the parameters that dictate what a galaxy group is? 2013-12-30T19:21:27.407

15 How many galaxies have been discovered? 2013-09-25T06:24:51.817

15 How do we know Milky Way is a 'barred' spiral galaxy? 2013-12-29T00:20:11.773

15 Where is Voyager 1 (or 2) going? In which direction? 2014-01-04T18:37:20.490

15 Explaining Dark Matter and Dark Energy to layman 2014-01-28T16:59:01.850

15 Do we get any benefit from being in a galaxy? 2014-10-21T14:12:30.187

14 What do we know about the lifecycle of the Milky Way (or any other spiral galaxy)? 2013-11-21T10:14:43.240

14 Where does the Milky Way end? 2014-07-30T08:25:47.310

13 What is the evidence that galaxies rotate? 2013-09-27T10:07:08.227

13 Statistically, what would the average distance of the closest black hole be? 2014-06-21T21:42:46.977

13 Supermassive black holes at the center of galaxies 2014-06-26T18:10:35.157

13 How much overlap will the Andromeda galaxy and the Milky Way have when they collide? 2015-05-31T20:51:38.063

13 Conventional matter to dark matter ratio, outside of galaxies (Bounty!) 2016-06-11T00:51:07.483

13 Is it "weird" that all disc galaxies rotate once every billion years? 2018-03-15T18:17:17.473

12 How fast do we travel through space? 2013-09-27T11:23:54.283

12 How are Galaxy Super Clusters Generated 2013-11-27T20:49:04.123

12 How do we calculate the escape velocity of galaxies? 2013-12-13T18:10:31.763

12 Metallicity of Celestial Objects: Why "Metal = Non-metal"? 2014-05-22T18:32:41.560

12 Boötes Void numbers, 2016 2016-05-03T15:44:27.260

12 Can the difference between a star and a galaxy which are point sources be detected? 2016-09-15T07:47:48.810

12 Do we know if we are overtaking or falling behind our arm? 2016-11-25T14:46:51.617

12 Does the rotation of galaxies precess? 2018-11-08T01:15:45.567

11 How often does Earth cross the galaxy regions with higher supernovae activity? 2013-10-08T20:39:08.893

11 Dark Flow: statistical limits on existence 2014-05-26T20:41:09.910

11 Does CIBER Experiment from Caltech suggest that there can be lots of stars which are not in any galaxy? 2015-01-06T19:07:04.600

11 Has the great Andromeda Galaxy ever collided with any galaxies? 2015-06-25T07:25:56.793

11 What will happen to the shape of a galaxy when a super massive black hole lying in its center dies(evaporates out)? 2018-05-29T16:17:32.960

10 Have we observed any rogue/wandering stars? 2013-10-15T18:58:15.320

10 How long until we cannot see any stars from other galaxies? 2013-10-21T13:18:01.660

10 Are Gamma Ray Bursts of galactic or extragalactic origin? 2014-01-15T02:10:00.010

10 How do we know that our galaxy is a spiral galaxy? 2015-11-11T04:14:21.823

10 What percentage of galaxies rotate with trailing arms? 2016-01-14T13:39:00.057

10 Are there any galaxies which fell out of sight horizon due to cosmic expansion? 2016-03-28T13:23:57.063

10 Why do galaxies have arms? 2016-10-06T20:03:57.530

9 Do stars of a galaxy change their positions relatively to each other? 2014-02-05T15:16:09.867

9 Are there a lot of collisions between stars in the core of the galaxy? 2014-06-29T17:32:11.923

9 Could light be dark matter? 2014-07-02T11:56:05.587

9 Do we expect life to develop only in certain regions of the galaxy? 2014-08-11T19:10:13.213

9 Fate of the Spiral Arms of the Milky Way and Andromeda 2014-08-31T14:13:42.363

9 Are there equal number of planets, stars, galaxies etc in observable universe spinning in both directions? 2015-11-04T07:54:56.693

9 How does the concept of a universe with no center work? 2016-03-04T02:17:26.683

9 Do galaxies change shape and size over time? 2016-07-27T18:45:42.813

9 face-on galaxy and edge-on galaxy 2016-11-16T10:03:18.770

9 Is it possible to figure out your location in the Milky Way if you are suddenly wormholed to a random, distant location in the galaxy? 2017-01-30T02:51:55.260

9 What are the chances of a star colliding with another during a galactic collision? 2017-09-06T21:22:37.243

9 Why is M87's relativistic jet bent? 2018-09-01T19:23:52.440

8 How do scientists know there are about 300 billion stars in a galaxy and there are about 100 billion galaxies? 2013-12-06T21:26:36.937

8 Computing the Sérsic profile of a galaxy from jpg images 2014-01-25T07:23:05.990

8 If galaxies are moving away from each other then why are the Milky Way and Andromeda galaxy coming towards each other? 2014-02-07T14:35:23.690

8 Is there a fundamental difference between a small galaxy, and a large star cluster? 2014-03-18T18:55:58.697

8 What is the scale of things you can see with gravitational lensing? 2015-11-27T18:28:25.153

8 Why is there a supermassive black hole at the center of every galaxy? 2016-07-10T16:28:27.677

8 What (actually) is the " deprojected half-light radius" of this almost-all-dark-matter Galaxy? 2016-08-26T04:17:56.870

8 How accurate and complete is the Hubble sequence diagram? 2016-12-31T13:32:39.050

8 What is this bright "glow" in the center of galaxies? 2017-06-28T21:53:17.250

8 Can "rogue" supermassive black holes be made this way? 2018-06-27T17:05:20.090

7 Is the Hubble Ultra-Deep Field image representative of the entire sky? 2014-07-31T07:23:21.643

7 Is there a paper on galaxy mergers in clusters of galaxies? 2014-08-26T09:51:34.103

7 Are those noise or stars? 2015-08-12T14:36:55.790

7 Are the stars outside of the galactic plane in the galactic halo? 2016-11-11T23:50:55.290

7 Do Stars in Galaxies also move in elliptical orbits? 2016-12-31T17:13:33.913

7 Has the Milky Way collided with another galaxy? 2017-12-14T06:22:51.137

7 How far would EGSY8p7 be away now? 2018-06-26T16:49:03.783

7 Do all galaxies have a black hole in the center? 2018-10-14T20:53:58.677

7 How much greater is the star density in our galactic bar? 2018-10-31T04:00:08.033

6 Which galaxy is receding from the Milky Way the fastest? What is known of the mechanism behind its recession? 2013-10-06T11:35:07.050

6 Do solar systems have to evolve in a galaxy? 2014-02-11T17:16:54.663

6 Is there a strong galactic magnetic field? 2015-01-12T14:35:11.907

6 Can the Milky Way be seen with the naked eye? Does this apply to any galaxy? If yes, then how and when? 2015-05-22T19:00:59.140

6 What's in the center of a Galaxy? 2015-06-03T02:53:22.400

6 Do constellations change? 2016-07-16T08:50:27.130

6 How did the Milky Way and Andromeda Galaxy separate before they began their collision course? 2016-09-07T03:12:40.307

6 Why are galaxies distributed as walls and voids, or spider webs? 2016-10-12T20:59:28.260

6 What is the ugriz magnitude system? 2016-11-07T22:32:50.660

6 Star density in- versus out- of the arms of the galactic pattern? 2016-11-28T14:39:28.777

6 Would our galaxy appear as a spiral when seen from the Andromeda galaxy? 2017-07-24T21:51:35.100

6 Rule of Exception in All Nearest Objects 2017-07-30T01:14:30.173

6 What can the total stellar mass of galaxies tell us? 2017-10-09T16:42:35.000

6 How was the galactic plane established? 2017-12-12T01:04:40.783

6 How many stars are between Milky way and Andromeda? 2018-01-04T06:43:31.117

6 Gravitational eddies across the galaxy? 2018-02-15T22:07:08.507

5 Age of the universe 2014-02-23T13:50:24.707

5 What is the relative time difference between us and a star system in outer layer of our galaxy? 2014-08-29T03:37:51.337

5 Can we see individual stars in other galaxies? 2014-10-03T21:12:01.313

5 What is supposedly in the center of the Milky Way? 2015-01-17T12:41:39.367