Right now, there's a "heat dome" lingering over the southwestern U.S. – a high pressure system that pushes hot air down and traps it, raising the temperature. Heat is becoming increasingly lethal as climate change causes more extreme heat. So in today's encore episode, we're exploring heat. NPR climate correspondent Lauren Sommer talks with Short Wave host Regina G. Barber about how the human body copes with extended extreme heat and how today's heat warning systems could better protect the public. With scientists predicting a very hot summer, if you can, stay cool out there, dear Short Wavers.

What science story do you want to hear next on Short Wave? Email us at shortwave@npr.org.

We kickoff our series Space Camp with a look at space launches. What does hurtling into space feel like? What physics are involved? And what's the "junk" in Earth's orbit?

It feels like this is the summer of space launches. So, it's only appropriate that we kick off our new series Space Camp with a look at space launches. Throughout the series, Regina and Emily will plumb our universe to uncover the strange, wonderful things happening all around us. This episode, that entails answering a series of questions about getting to space: What does hurtling into space feel like? What physics are involved? And what's the "junk" in Earth's orbit?

Space Camp episodes drop every Tuesday in the Short Wave feed in addition to our regular episodes happening every Monday, Wednesday and Friday.

For a full explainer of Newton's third law of motion, g-forces and visuals on his cannonball thought experiment, check out our digital story.

Have a particular aspect of space you want us to cover in a future episode? Email us at shortwave@npr.org — we'd love to hear from you!

NPR's Mary Louise Kelly talks with Regina Barber and Emily Kwong of Short Wave about the origins of baobab trees, lizard-inspired construction, and why outside play is beneficial for kids' eyesight.

An extreme geomagnetic storm reached Earth yesterday, with the northern lights dancing across the skies in places they're normally not seen. It's the most powerful solar storm in decades.

NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about biodegradable plastic, simulating growing crops on Mars, and how deer are disrupting caribou populations.

Stars are born in clusters. Some stay together as binaries, some drift apart and some are violently thrown out of the family. The Pleiades are young clustered blue stars being born from dust and gas.

The twin is Venus — the hottest planet in our solar system. Our series on The Science of Siblings, examines how these two planets started out so similar but end up so different.

NPR's Ari Shapiro talks with Regina Barber and Rachel Carlson of Short Wave about chickadees with awesome memories, grinning robots, and the bugs most commonly found in haiku.

NPR's Ailsa Chang talks with Regina Barber and Anil Oza about rhythms and the brain, how electric fish sense their environment, and a new methane-detecting satellite.

NPR's Ailsa Chang talks with Regina Barber and Rachel Carlson of Short Wave about singing gibbons, how tai chi might lower blood pressure, and why women get quicker benefits from exercise than men.

Short Wave's Regina Barber and Margaret Cirino talk through how moths produce an anti-bat signal, why clownfish could be counting to 3 and the first GMO food crop sold directly to home gardeners.

NPR's Juana Summers talks with Regina Barber and Pien Huang of Short Wave about a double emergence of cicadas this spring, invasive ants in Kenya, and the secrets in an ancient wad of chewing gum.

NPR's TKTKTK talks to Regina Barber and Geoff Brumfiel of Short Wave about a new moon mission, a global map of fishing ships, and mysterious rings of radio waves surrounding some galaxies.

NPR's Short Wave hosts Geoff Brumfiel and Regina Barber wrap up of the year in AI, James Webb Space Telescope research and climate change.

NPR's Juana Summers talks with Regina Barber and Viet Le of Short Wave about parrots dunking food in water, a giant hole in the sun and the lifeforms neglected by emoji makers.

NPR's Mary Louise Kelly talks with Regina Barber and Aaron Scott of Short Wave about building cellular 'robots,' the bizarre sleeping habits of chinstrap penguins, and a lost echidna found again.

NPR's Ari Shapiro speaks with Regina Barber and Aaron Scott of Short Wave about a black hole nearly as old as the universe, how pollution plagues sea turtles, and a simple fix to cut blood pressure.

Antibiotic resistance is a growing issue around the world. A new study finds that it's leaving children and infants vulnerable to potentially deadly bacterial infections, like sepsis and meningitis

New research finds that the most commonly prescribed antibiotics in Southeast Asia are only 50% effective at treating sepsis and meningitis in newborns. It's a cause for global concern.