Astronomy Cast Archive
Apr 18th: Big Qs Update: Dark Matter, Dark Energy, Etc.

Apr 11th: Simulating Space Missions

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Although humans have never actually been to Mars, explorers have simulated many aspects of Mars missions here on Earth. There are missions under the ocean, on the tops of volcanoes, in the harsh Canadian north, and even in bed that simulate the limitations of spaceflight, and teach us many of the lessons to prepare us for the real thing.

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Apr 18th: Big Qs Update: Dark Matter, Dark Energy, Etc.

Mar 28th: Blowing Bubbles

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We think of space as a vacuum, but there are regions of different density. There are winds blowing from stars and other objects that clear out vast bubbles in space, and they might have been critical for Earth to even exist in the first place.

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Apr 18th: Big Qs Update: Dark Matter, Dark Energy, Etc.

Mar 7th: Weirdly Habitable Places

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We’ve always assumed that habitable planets would need to be like Earth; a terrestrial planet orbiting a sunlike star. But now astronomers have been discovering planets in the habitable zone around very much non-sunlike stars. What strange places could be habitable?

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Apr 18th: Big Qs Update: Dark Matter, Dark Energy, Etc.

Feb 28th: Building Images: Optical vs Radio

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A recent image from the South African MeerKAT Telescope blew our minds. It was a high resolution image of the center of the Milky Way showing delicate filaments and other structures. Today we’re gonna talk about why this was such an accomplishment and what the future holds for radio astronomy.

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Apr 18th: Big Qs Update: Dark Matter, Dark Energy, Etc.

Feb 14th: Things We Can Look Forward To

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In a rare moment of weakness, Pamela has decided she’s open to the possibility that a future exists. That missions, telescopes and spacecraft are going to be built and they’re going to do science. Today we’ll talk about what we’re looking forward to before she changes her mind and my naive optimism for the future.

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About Our Podcast

The 365 Days of Astronomy podcast launched in 2009 as part of the International Year of Astronomy. This community podcast continues to bring you day after day of content across the years. In 2013, we evolved to add video, and in 2015 we joined the International Year of Light.

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