Why does a telescope need an equatorial mount, and what makes it different from simpler fixed or altitude–azimuth designs? This beginner-friendly talk starts with the basic problem of following objects […]
We continue our revisiting of The Cosmos Series. Episode 3: Subject: History of astronomy from astrology to Kepler’s laws; Ptolemy, Copernicus, Brahe, Galileo; scientific method triumph. 45 Years Later: […]
Titan: Earth’s Frozen Twin Guest speaker: Jonathan Park In many ways, Saturn’s moon Titan looks uncannily familiar: dunes like those in Earth’s deserts, mountains, branching river channels, rain, lakes, and […]
We've changed our minds about that several times. In the 1950s we pictured a warm jungle world. Then multiple spacecraft found a surface at ~400°C that destroyed every lander we […]
Carnegie Science Observatories postdoc Andrew Robertson focuses on one of the key mysteries in contemporary astronomy: the nature of dark matter. We know that this mysterious form of matter makes […]