PodcAstroholic – Why Is Pluto Not A Planet?

In this PodcAstroholic we answer the question "Why is Pluto not a planet?" Longer discussion in the vlog

“The Stars Were Aligned”

Sometimes inspiration strikes in unusual ways at unusual times. I was tagged in a quote tweet where Prof Peter Coles states that as an astrophysicist he must contest Prince Harry's statement that "the stars...

Mergers in G-Major

There has been a surprising affinity between astronomy and music. Both needed the inspiration of the muses to be performed in Ancient Greece, and expressions like the Music of the Spheres just shows the...

PodcAstroholic – Can We Terraform Mars?

In this PodcAstroholic we talk about the possibility to terraform Mars

Has anyone got a recipe for artificial gravity?

One of the underlying ideas in Einstein's general relativity is that for an observer, the acceleration due to gravity, or the acceleration due to thrust, are identical. This is a consequence of the equivalence...

Calories in anti-matter

Dear Mr Science Guy, How many calories would get in a bottle of antimatter? How long would it take to burn off at the gym if you drank it? Thank you, Rob, age 30 Rob asks a very...

One Planet, One Climate, One culture.

One of my biggest pet peeves about sci-fi universe building is the lazy approach in building alien civilisations. We often see the trope showing one world, one climate, and one language. Given the variety...

PodcAstroholic – Life On Other Planets

60 In this PodcAstroholic we talk about the likelihood of life on other planets

Why Does The Moon Go Red During An Eclipse?

I know why the moon goes red during a total eclipse. But why does it not go red until near totality? Phil, London This is actually a very interesting question, with an (unfortunately) unsatisfying answer. But...

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