In Search of the Ultimate Ruler: The Grand Challenge of Distances in Astronomy
GUEST SPEAKER: John O’Meara, W. M. Keck Observatory Chief Scientist ASTRONOMY TALK | Even with the most powerful telescopes and instrumentation, astronomy faces a fundamental problem: the ability to determine the distance to objects in the cosmos. From the solar system to the cosmic microwave background, the history of astronomy is intertwined with the hunt […]