HeyJaredStarDate
StarDate, the longest-running national radio science feature in the U.S., tells listeners what to look for in the night sky.
- Indexed episodes, last 90 days
- 10
- Latest publication
- Sep 28, 2026
- Audience
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- Earliest in this view
- Sep 19, 2026
Latest episodes
Galactic Disruption (opens the original)
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Galaxies aren’t good neighbors. They can stretch and pull the galaxies around them, rip them apart, and even gobble them up. A case in point is the Magellanic Clouds – the largest satellite galaxies of the Milky Way. The Large Magellanic Cloud is about 165,000 light-years away. It’s about a third as wide as the Milky Way, and perhaps one-tenth as massive. The small cloud is a little smaller and farther away. Both of them are being distorted by the Milky Way’s gravity. And both may be incorporate
Moon and Saturn (opens the original)
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If you’re searching for life on another world, you don’t want to find life that’s hitchhiked from Earth. But preventing contamination isn’t easy. Over the past few decades, we’ve identified quite a few worlds in the outer solar system that could be habitable. These worlds are coated with frozen water. But they could have oceans of liquid water below the crust. Those oceans could supply the minerals and the energy needed for life. So scientists are especially interested in them. But they want to
Harvest Moon (opens the original)
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The Moon is full today. But it’s not just any old full Moon. It’s the best-known of them all: the Harvest Moon – the subject of books, music, and lots of fall festivals. In centuries past, the Harvest Moon was much more than a pop-culture event. It provided enough light for farmers to harvest their crops well into the night. And at high northern latitudes, it helped out for several nights in a row. Officially, the Harvest Moon is the full Moon that’s closest to the fall equinox. That put it arou
Neptune Opposition III (opens the original)
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Neptune has lost its vibrancy. The planet itself hasn’t changed – only our perception of it – the result of a bit of creative license exercised 37 years ago. Neptune is the Sun’s fourth-largest planet – four times the diameter of Earth. But it’s also the most-distant major planet – 30 times farther from the Sun than Earth is. Our only close look at Neptune came in August 1989, when Voyager 2 flew just 3,000 miles above its cloudtops. It transmitted hundreds of pictures of the planet. They reveal
Neptune Opposition II (opens the original)
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The largest moon of Neptune was an agent of chaos. It wasn’t born with Neptune itself. Instead, it was captured by the giant planet. As it spiraled in, it might have hit one of Neptune’s existing moons. And it scattered the others – knocking some of them out of orbit. Only one of them might have survived. There’s a lot of evidence of that idea. Triton is about the same size and composition as Pluto. It contains more than 99 percent of the total mass of Neptune’s moons and rings. And it orbits in
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