It's very rare but a star can be created outside a galaxy. I don't have any examples but they exist and it's rare.
1 Answers 1 viewsI assume that your 1010 means $10^10$. Then the number of stars is simply $10^10*10^10=10^20$.
1 Answers 1 viewsIt has been estimated that in our Milky Way galaxy there is a supernova explosion every 50 years. Given that the Hubble telescope has detected some 150 billion galaxies, this...
1 Answers 1 viewsAndromeda is being pulled apart by the expanding universe. But the gravity between the Milky Way and Andromeda is strong enough to overcome this expansive force. Gravity is pretty...
1 Answers 1 viewsThere is a different story for each type of dwarf star that we cannot see. if you are considering Proxima-Centauri, Proxima-Centauri though is the closest Star to but at the...
1 Answers 1 viewsIn a binary star system the larger star evolves in to a red giant and then collapses into a white dwarf. Some time later the second star will become a...
1 Answers 1 viewsStars are formed when pools of gases come together through gravity. You can see these pools of gases on the NASA website by looking at pictures from the Hubble telescope....
1 Answers 1 viewsFusion reactions in stars only takes place in the core or the layers around the core where temperatures and pressures are high enough. When a large star comes to the...
1 Answers 1 viewsOnly few stars are in real groups like Pleiades . Only from our vantage point we see them in groups.Such groups we constellations...
1 Answers 1 viewsSee the drawing showing how our sky changes with different position of earth. Picrture from atropos as arizona.EDu.
1 Answers 1 views