Caption: Animation of a nuclear interaction in the Sun's core. The Sun produces most of its energy through a nuclear reaction called the proton-proton chain, which forms helium from hydrogen. This begins when one of the protons (red) in its core collides and fuses with another, binding together to form a diproton (helium-2). In the vast majority of cases, this nucleus falls apart very soon after it is created. For the fusion reaction to continue, one proton must undergo beta decay to a neutron, forming deuterium (hydrogen-2). To see the complete fusion reaction, see clip K003/3971.

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Keywords: animated, animation, astronomical, astronomy, astrophysical, astrophysics, atom, atomic, atoms, binding, decay, decaying, demonstration, dense, diproton, education, educational, emission, energy, fuel, fuelling, heat, helium-2, hot, hydrogen, interaction, ion, ions, nuclear, nuclei, nucleus, particle, power, proton, protons, solar, space, star, stars, stellar, sun

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Fusion reactions in the Sun

K003/3972 Rights Managed

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Duration: 00:00:20

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 493.1M


Capture format: QuickTime Animation

Codec: None

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