Resumen de Mocking up the universe
The photons unleashed from supernova explosion will travel for billions of years through vacuum, dust and Earth's atmosphere before being focused onto a telescope. From faint specks in blurred pictures, astronomers will use that supernova and many others to gauge the strength of dark energy, the mysterious force stretching the universe apart. The telescope that will benefit from this cosmic charade is the Large Synoptic Survey Telescope, which will look for dark energy and more for real atop a Chilean mountain from 2022. But such experiments are finding uses in all areas of astronomy.
