Ep. 643: Sagittarius A*

All the waiting is over, we’ve finally seen the image of the event horizon from the supermassive black hole at the heart of the Milky Way. Today we’re going to explain the picture, and what’s next for the Event Horizon Telescope.

Up next: Ep 645, 6 June 2022

The Future of the ISS

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Fraser Cain
Universe Today

Dr. Pamela L. Gay
Planetary Sci. Inst.

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15 seasons and more than 600 episodes await.

Ep. 642: Is the Sun… Normal?

Ep. 642: Is the Sun… Normal?

We’ve always assumed that we lived in a perfectly normal system with a normal star and normal planets. It’s all… normal. But with our modern understanding of billions of stars, just how normal is our Sun, anyway?

Ep. 641: Are Planets Alive?

Ep. 641: Are Planets Alive?

The Earth is teeming with life, both in the upper atmosphere to kilometers underground. There’s no question that our planet has life. But is our planet itself alive? This is a question posed back in the 1970s as the Gaia hypothesis, and it got its share of criticism. Some new ideas have been proposed to bring this hypothesis to the modern era.

Ep. 640: Survey Science: Newest Projects and Results

Ep. 640: Survey Science: Newest Projects and Results

There are general-purpose telescopes and missions that astronomers can use to study specific objects. And there are survey missions that look at the entire sky, which astronomers can use to answer questions about the Universe. We’ve talked about surveys in the past, but the landscape is changing fast so it’s time for an update.