So many of the forces in space depend on equilibrium, that point where forces perfectly balance out. It defines the…
Even the ancient astronomers knew there was something different about the planets. Unlike the rest of the stars, the planets…
Sometimes a trilogy needs four parts! The Astronomy Cast team of Fraser Cain and Pamela Gay have taken a look…
Spring, Summer, Autumn and Winter. These are the seasons we experience here on Earth as our planet completes an orbit…
We’ve all seen the classic science fiction space explosions, full of flames and loud sounds. Beautiful on the screen but,…
In order to allow for a static Universe, Albert Einstein introduced the concept of the Cosmological Constant Lambda to make…
When Edwin Hubble observed that distant galaxies are speeding away from us in all directions, he discovered the reality that…
Last week we talked about energy, and this week we’ll talk about mass. And here’s the crazy thing. Mass, matter,…
Our entire civilization depends on energy: getting it, converting it, burning it, and conserving it. But how do physicists think…
Are you listening to Astronomy.FM? If not, you should join the audience of over 25,000 listeners in 85 countries who…