Galaxies - NASA Science
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Description
Overview Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years. Most large galaxies have supermassive black holes […]
Galaxies HubbleSite
Seeing Triple
Hubble's Galaxies - NASA Science
See Pic: NASA Shares Beautiful Image Of A Sparkling Dwarf Irregular Galaxy - Science
Galaxies' missing matter may be found – but now there's too much of it
When Hubble Stared at Nothing for 100 Hours
Galaxy - Wikipedia
Hubble Reveals Observable Universe Contains 10 Times More Galaxies Than Previously Thought - NASA Science
Basics Galaxies – NASA Universe Exploration
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