Reality Straight Up!

Thoughts & Observations of a Free Range Astrophysicist

Cheetah hunting gazel


How our Pleistocene brains (mis)handle modern threats

A strong fight-or-flight reaction served our evolutionary ancestors well. If the leopard catches you, that’s it! But today a visceral response to a not-so-mortal threat seldom improves things. If you want to get a handle on those intense, counterproductive bouts of emotion, start by understanding where fight-or-flight came from in the first place.

March for Science

Why I March for Science

On Earth Day, April 22, 2017, people around the nation will March for Science. It seems strange to need to march in support of the idea that pronouncements from politicians cannot change the nature of reality, or that evidence matters when making decisions. But such are the peculiar times in which we live.

Pulsars and Neutrinos

The history that LIGO forgot

Gilding the lily makes everybody look bad. When the Laser Interferometer Gravitational-Wave Observatory detected ripples in the fabric of space-time from a pair of merging black holes, it was a technological and scientific accomplishment without peer! But LIGO did not “discover” gravity waves.

This article originally appeared in my Astronomy Magazine column, For Your Consideration.

Over his 30 year career as an internationally known astrophysicist, Dr. Jeff Hester was a key member of the team that repaired the Hubble Space Telescope. With one foot always on the frontiers of knowledge, he has been mentor, coach, team leader, award-winning teacher, administrator and speaker, to name a few of the hats he has worn. His Hubble image, the Pillars of Creation, was chosen by Time Magazine as among the 100 most influential photographs in history.
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