Roberto Trotta

Thanks to the discoveries of Edwin Hubble and Vera Rubin, we know that the Universe is expanding and contains invisible mass—dark matter. Astronomers have developed a new method: they create computer simulations to guess the Universe's properties without complex formulas. Combining maps of galaxies

An international team led by Marco Giunto analyzed nearly a thousand Type Ia supernovae from the ZTF survey and showed that the differences in their color and brightness are almost entirely caused by dust in their host galaxies, not by the physics of the explosions themselves. This settles a long-st