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Planetary Radio Episodes

Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.

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IMAP and the solar wind

IMAP and the shape of the heliosphere

Host Sarah Al-Ahmed speaks with David McComas, principal investigator of IMAP and IBEX, and Matina Gkioulidou, IMAP project scientist, about how energetic neutral atoms let us map the heliosphere.

Voyager 1 and 2 Outside the Heliosphere

Voyager and the heliopause: Exploring where the Sun gives way to the stars

Linda Spilker, project scientist for the Voyager mission, explains what Voyager has revealed about the heliopause and the Solar System’s outer edge.