Roberto Trotta

Astronomers build maps of galaxies and listen to the radio whisper of neutral hydrogen. The signal is so faint that even a working TV would drown it out, but sensitive antennas pick it up from the depths of the Universe.

Type Ia supernovae are the final, blinding chords in the symphony of stellar evolution: when a white dwarf crosses the limit predicted by Chandrasekhar, it explodes so brightly that for a moment it outshines an entire galaxy.