Riccardo Giacconi, the “Father of X-ray Astronomy,” Nobel Prize winner and one of the most influential figures of modern astrophysics, died in December at the age of 87. Over a career spanning more than five decades in time and 10 orders of magnitude in wavelength, Riccardo opened up new windows for observing the universe, and revolutionized the way "big astronomy" is done at major observatories, from the Hubble Space Telescope to the Atacama Large Millimeter/submillimeter Array (ALMA).
