Radiation matter equality — Free Astrophysics Illustration

Astrophysics

Radiation matter equality

A symbolic balance-style cosmology icon showing radiation–matter equality, split into two equal-sized or equal-height halves by a central vertical divider. One half is bright orange-red to golden-yellow and filled with tiny light-like particles representing radiation; the other half is muted blue-gray to gray-blue with small dot-like particles representing matter. The composition should clearly emphasize that the two contributions are equal. Use clean vector linework, flat colors, minimal shading, and a muted scientific palette consistent with the set.

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