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Our Star
The sun is a star, a hot ball of glowing gases at the heart of our solar system. Its influence extends far beyond the orbits of distant Neptune and Pluto. Without the sun's intense energy and heat, there would be no life on Earth. And though it is special to us, there are billions of stars like our sun scattered across the Milky Way galaxy.

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Just the Facts
Just the Facts
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Dig Deeper
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Create Your Report
Even More Stuff...
Even More Stuff...
Even More Stuff...
  Explore the sun in 3D Videos Activities

The Sun's Magnetic Field is About to Flip
The Sun's Magnetic Field is About to Flip
SDO: Three Years of Sun in Three Minutes
SDO: Three Years of Sun in Three Minutes
NASA EDGE: Sun-Earth Days 2013, Part 3
NASA EDGE: Sun-Earth Days 2013, Part 3
NASA EDGE: Sun-Earth Days 2013, Part 2
NASA EDGE: Sun-Earth Days 2013, Part 2
NASA EDGE: Sun-Earth Days 2013, Part I
NASA EDGE: Sun-Earth Days 2013, Part I
Previously Undetected Radiation Belt Revealed
Previously Undetected Radiation Belt Revealed
ScienceCasts: Solar Eclipse in the USA
ScienceCasts: Solar Eclipse in the USA
Comet Death
Comet Death
NASA ScienceCast: ZombieSat
NASA ScienceCast: ZombieSat
NASA ScienceCast: Solar Activity Heats Up
NASA ScienceCast: Solar Activity Heats Up
The Sun's Magnetic Field is About to Flip
The Sun's Magnetic Field is About to Flip
SDO: Three Years of Sun in Three Minutes
SDO: Three Years of Sun in Three Minutes
NASA EDGE: Sun-Earth Days 2013, Part 3
NASA EDGE: Sun-Earth Days 2013, Part 3
NASA EDGE: Sun-Earth Days 2013, Part 2
NASA EDGE: Sun-Earth Days 2013, Part 2
NASA EDGE: Sun-Earth Days 2013, Part I
NASA EDGE: Sun-Earth Days 2013, Part I
Previously Undetected Radiation Belt Revealed
Previously Undetected Radiation Belt Revealed
ScienceCasts: Solar Eclipse in the USA
ScienceCasts: Solar Eclipse in the USA
Comet Death
Comet Death
NASA ScienceCast: ZombieSat
NASA ScienceCast: ZombieSat
NASA ScienceCast: Solar Activity Heats Up
NASA ScienceCast: Solar Activity Heats Up