Life Cycle of Stars
The night sky is full of stars, and our own Sun is the nearest star to us. Stars seem to last forever, the patterns they make in the sky don’t seem to change, and the Sun seems to have been there for an extraordinary length of time. They don’t last forever; they have a life […]
Rebuilding the Universe: Discovering Matter, Space, and Radiation
The Universe does not arrive at us as facts. It arrives as light in our eyes, pressure on our skin, and motion through space. From these experiences, we begin to build understanding. What’s the first thing you remember about the night sky? For me, it was the brightness of the full Moon. In this activity, […]
Light Speed
The distances in space are enormous, and the time that it takes to travel, even within our Solar System, between celestial objects is huge. Science fiction gives us warp drives and hyperspace to leap around the galaxy, and maybe one day we’ll figure out how to fold space and teleport ourselves around the universe. Until […]
