Abstract illustration of dark matter
Bildnummer 11887119
| Dark matter. Abstract illustration of dark matter showing a spiral galaxy as a jigsaw puzzle with many of the pieces missing. Dark matter is a theoretical concept used by cosmologists to explain why the stars in a galaxy stay together. The gravitational force within a galaxy can be determined by its rotational period. The mass of the stars can be calculated by measuring their luminosity. Cosmologists estimate that only about 10% of the gravitational force holding galaxies together comes from visible mass. Theoreticians have suggested that the other 90% comes from dark matter made of subatomic particles or compact,non-luminous material such as asteroids | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Cook, Lynette |
| Bildgröße: | 5687 px × 3140 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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