In this edition of the PhysicsCentral podcast, we hear from a few teams who are still in the running for the CubeQuest Challenge: a contest for homegrown teams to build their own small satellites - cubesats - and compete against each other by demonstrating technological feats. Five million dollars in prize money will be divided among teams who can get into orbit around the moon, maintain a stable orbit for a long time, or make it almost all the way to Mars' orbit while still communicating with Earth.

Join Dr. Anna Frebel and PhysicsCentral podcast host Meg Rosenburg in a search for the oldest stars in the universe!

Ice cores contain air bubbles that have been encased for close to a million years! Find out what we can learn from this ancient oxygen in this week's PhysicsCentral podcast!

Host Meg Rosenburg journeys to the Hanford observatory for an exclusive interview with one of the scientists behind LIGO's detection of gravitational waves!

Is there a ninth planet in the solar system lurking somewhere in the inky depths of space? Learn about Vulcan, Planet X, and the history of planetary astronomy in this week's PhysicsCentral podcast!

Can we smell a snowstorm before it begins? On today's podcast, were joined by olfactory scientist Pamela Dalton, a researcher at the Monell Chemical Senses Center in Philadelphia, to explore the physics behind that crisp, snowy scent.

Join Meg Rosenburg on a journey from the jagged, active slopes of Kilauea to the "artificial lava" lab at Syracuse University in this week's PhysicsCentral podcast!

This week's PhysicsCentral podcast dives into the fluid dynamics that govern collective motion, like schools of fish and flocks of birds.

This week's PhysicsCentral podcast takes a deeper look at the more notable name-drops in the new film The Martian.

Meg interviews Wylie Overstreet, whose recent viral hit video "To Scale: The Solar System" gives us a glimpse of what the solar system would look like from the outside.