Brown Dwarf
An artist's impression of a Brown Dwarf
Credit: NASA/JPL-Caltech
Credit: NASA/JPL-Caltech
Stars
Life Cycle of a Star
All stars form in nebulae, which are huge clouds of gas and dust. Though they shine for many thousands, and even millions of years, stars do not last forever. The changes that occur in a star over time and the final stage of its life depend on a star's size.
Star Formation Demonstration
Star Formation
Credit: T.A. Rector/University of Alaska Anchorage,
T. Abbott and NOAO/AURA/NSF
Stars form in huge clouds of gas and dust called nebulae. These areas of space are sometimes known as 'stellar nurseries' or 'star forming regions'.
Constellations
Credit: Torsten Bronger
Nuclear Fusion
Credit: ESA/NASA/SOHO
The light and heat from stars is made by a process called nuclear fusion.
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