Stellar Evolution
All stars form in nebulae, huge clouds of gas and dust.
Though they shine for thousands of years, stars do not last forever. The changes that occur in a star over time and the final stage of its life depends on a star's size.
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This work
by The Schools' Observatory
is licensed under All rights reserved
Galaxies
A galaxy is a large collection of stars, dust and gas. They are surrounded by dark matter, and are held together by gravity.
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by NASA/The Hubble Heritage Team (AURA/STScI)
is licensed under Creative Commons Zero v1.0 Universal
Blackholes
Black holes are very strange objects. They are made during supernova explosions. These take place when very massive stars come to the end of their lives.
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by EHT Collaboration/ESO
is licensed under Creative Commons Zero v1.0 Universal