Why does the Universe have antiparticles?

Daniel and Kelly review the recent movie 'Disclosure Day' and discuss some tough questions about knowledge and secrecy.See omnystudio.com/listener for privacy information. 

Daniel and Kelly are joined by Dr. Manuel Lerdau to answer listener questions about toxic plants, seed germination, and micropropagation.See omnystudio.com/listener for privacy information. 

Have you ever wondered if there are parallel universes? Earlier this year, a NASA study suggested there might be another universe where time goes backwards. Could that be a universe made of antimatter? Why did matter win over antimatter after the Big Bang? If there is an antimatt ...  Show more

Dan and Shalma have a candid conversation about the state of dark matter research, and the ways the field has changed over the last few years.For exclusive ask-us-anything episodes, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is availabl ...  Show more

Daniel Whiteson and Jorge Cham talk to us about what science communication means to them.

Listen to their podcast, Daniel and Jorge Explain the Universe: https://www.iheart.com/podcast/105-daniel-and-jorge-explain-t-29862087/

Support WTU on Patreon: https://w ...

Two SciAm editors duke it out to see if wormholes and multiverses could in fact exist. Learn more about your ad choices. Visit megaphone.fm/adchoices