Walkabout the Galaxy Posts

July 28, 2021 / Episodes

They have to be out there, and now we have a first direct glimpse of what is likely to be the birthplace of an exomoon – a moon forming in a disk around a planet…

July 21, 2021 / Earth

Lithium is not just in demand for all those new electric car batteries, it seems there’s a problem with missing lithium in the universe. We explore the Cosmological Lithium Problem, take a look at what…

July 14, 2021 / Black Holes
July 7, 2021 / Earth

In another wide-ranging episode, we discuss how atmospheric and oceanic chemistry changes wiped out most life on Earth 250 million years ago, the best evidence yet for a third type of supernova, and the importance…

June 30, 2021 / News and Such

We were hacked, now we’re back! Stay tuned for updates with all our episodes and more news, coming soon. Josh and the WtG team.

June 23, 2021 / Cosmology

Just when the mysterious dimming of nearby giant star Betelgeuse is explained, a more distant giant star was almost completely blocked out. We discuss the very different explanations for these two stellar events, and we…