This week on the Physics Central Podcast, we have our monthly news round-up. It’s a mostly space-themed show this month. First up, the biggest astronomy news of the summer: after 10 years of travel, the Rosetta spacecraft has finally reached the comet 67P/Churyumov-Gerasimenko. Rosetta will be the first space craft to study a comet up close and for an extended period of time.
In other news, could the Brazil-nut effect be responsible for speckled asteroids? Is there a new dark matter signal out there? And finally, why would an atomic clock on board the International Space Station measure time differently than on earth?
Listen to the podcast to hear answers to these questions and more.
By the way, you can now send your deceased pet’s ashes to space.