Cosmic distance ladder,conceptual image. Computer illustration representing the cosmic distance ladder - the method used to measure the expansion rate of the universe,as well as its size and age. The ladder is a series of stars and other objects within galaxies that have known distances. By combining these distance measurements with the speeds at which objects are moving away from us,scientists can calculate the expansion rate of the universe,also known as Hubble's constant | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JPL-Caltech / NASA |
Bildgröße: | 4340 px × 2441 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |