The Deep Space Network. Today we’re going to talk about how this system works and how it communicates with all the spacecraft out there in the Solar System

The movement of the planets didn’t really match any theory; not until Johannes Kepler came along with his ellipses, and everything finally worked. #365DaysOfAstro @astronomyCast

In last week’s episode we talked about the things that change here in our own solar system. Now we’ll talk about everything else in the Milky Way and beyond.

Astronomers have found that sometimes the Universe changes. Things move, things explode, things get brighter or dimmer. In fact, knowing this has helped astronomers discover some very important aspects of the Universe. Today we begin a two part series on Transients and their role in astronomy.

The day when the Universe tried to Declare War. #365daysOfAstro @astronomyCast

Fritz Zwicky discovered dark matter, gravitational lensing, supernovae and neutron stars. And he also worked on a few more controversial ideas like, uh, tired light. Let’s learn more about Zwicky.

What are polar vertices, how do they form, and where else to we find them in the Solar System?

When astronauts go to the outer space, what are the various kinds of radiation they’ll encounter? Is there anything we’ll be able to do about it? #365daysofastro