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Posts Tagged "elements"

Life, Unbounded

Exoplanet Size: It’s Elementary

(Credit NASA/Ames/JPL-Caltech)

Since quite early in the history of the discovery of planets around other stars it’s been apparent that the likelihood of certain types of planets around a star is related to the abundance of heavy elements in that system. Specifically, astronomers can study the spectrum of light from a star and deduce the mix of [...]

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Life, Unbounded

We All Carry Stardust Memories

The Trifid Nebula - a potential analog for the kind of place our Sun was formed in 4.5 billion years ago (NASA/ESA)

In lieu of a proper post I thought I’d link to a recent video courtesy of SpaceLab at YouTube. In it you can watch a rather unshaven and scraggly version of me answering a simple but terrific question about the debt we owe to stellar nucleosynthesis. This issue also leads us to think about the [...]

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Life, Unbounded

Stellar Sands Help Enrich The Universe

It's a desert out there...(Image created from source material by: NASA, ESA and A.Zijlstra (UMIST, Manchester, UK) and Rosino (Wikipedia))

One of the most widely known and repeated astrophysical facts is that stars produce all the heavy elements that eventually make planets, shrubberies, and the likes of us. It’s absolutely true, but how exactly do they get those elements out into the universe to do all that? A major route is stellar explosion. When supernovae [...]

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