How astronomy makes neuroscience even cooler: brains, gold, and neutron stars | Michelle Thaller

TL;DR

Stars collide, creating gold & atoms, shaping our existence.

Transcript

To me it’s amazing some of the things that we actually do know. There’s plenty of things that are conjecture or theories but there’s a lot of stuff that we have real observations and real knowledge of. And amazingly, to me, one of the things is: where did all the atoms in our body come from? And it is actually a real fact, not a theory, that when y... Read More

Key Insights

• 🤩 Atoms in our bodies, including essential elements like carbon, originate from the cores of stars through nuclear fusion.
• 🫀 Observations of galaxies far back in time reveal the evolution of atoms and the changing chemistry of the universe.
• 🤩 Collisions between neutron stars create violent explosions, producing heavy elements like gold in significant quantities.
• 🤩 Gold created from colliding neutron stars is essential for various functions, including the optimal functioning of neurons in the brain.

Questions & Answers

Q: How are atoms in our bodies connected to the stars?

Atoms in our bodies, from carbon to calcium, are formed in the cores of stars through nuclear fusion reactions.

Q: What is the significance of observing galaxies far back in time?

Observing galaxies far back in time allows us to witness the evolution of atoms and understand the origins of our universe.

Q: How do colliding neutron stars produce heavy elements like gold?

Colliding neutron stars create powerful explosions that generate heavy elements like gold and platinum in quantities enough to account for the abundance of gold in the universe.

Summary & Key Takeaways

• Atoms in our body sourced from stars through fusion reactions billions of years ago.

• Observations show changing chemistry of galaxies over time.

• Colliding neutron stars create heavy elements like gold, essential for our existence.