The NASA Psyche mission is on its way to orbit a small but immensely ancient world in our asteroid belt: A metallic object, the first humans will ever have visited. […]
One Voice in the Cosmic Fugue Subject: Evolution by natural selection; Heike crab story; origin of life; DNA and the unity of life. 45 Years Later: Genomic sequencing revolution (Human […]
In 2006, the International Astronomical Union adopted a definition of a planet that demoted Pluto to just one of what is likely hundreds of dwarf planets in our Solar System. […]
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 […]