cheap astronomy Archives - Page 5 of 59

Feb 22nd: Galaxies Matter!

by Steve Nerlich | Feb 22, 2022 | Cheap Astro

On the grand scale of things, galaxies are on the grand scale of things. How does the galaxy rotate? What is intergalactic dust made of? @cheapastro at #365DaysofAstro

Feb 8th: Fantastic Physics Formulas: E=mc^2

by Steve Nerlich | Feb 8, 2022 | Cheap Astro

E=mc squared is a nice straight-forward formula, indeed the energy-mass equivalence concept that underlies it is pretty straight-forward too. But why is that constant a velocity – and why is it squared?

Jan 11th: Life In Space

by Steve Nerlich | Jan 11, 2022 | Cheap Astro

Does life arise from extremophiles or do extremophiles arise from life? Will we have pets in space?

Dec 14th: It’s A Weird Place, But We’re Getting To Know It!

by Steve Nerlich | Dec 14, 2021 | Cheap Astro

Today @CheapAstro is about time and timing. What is time made of? Is Betelguese about to blow? Find the answers at #365DaysOfAstro

Nov 30th: Cosmology Conundrums

by Steve Nerlich | Nov 30, 2021 | Cheap Astro

Today @CheapAstro takes some cheap shots at dubious cosmology claims. What exactly is vacuum energy? What do you make of Massive Gravity?

Nov 9th: Practicalities

by Steve Nerlich | Nov 9, 2021 | Cheap Astro

Cheap Astronomy uncovers some of the inconvenient truths of space travel.

Oct 12th: The Big Questions

by Steve Nerlich | Oct 12, 2021 | Cheap Astro

How long did the Universe take to complete the periodic table? Is Interstellar travel really out of the question? @CheapAstro will answer these questions today.