StarDate Podcast

StarDate Podcast


Latest Episodes

Stormy X-Rays
November 29, 2022

Muons are handy things. The particles act as cosmic X-ray machines. They’ve allowed scientists to peer into volcanoes, pyramids, and other structures. They’ve also provided views of ocean tides and tsunamis. And in the past few years, scientists have used

Moon and Saturn
November 28, 2022

The Moon is drifting away from us at about an inch and a half per year. Thats not much, but it adds up. Billions of years ago, the Moon was much closer than it is now. And because of that, Earths days were much shorter.According to a recent study, fo

Martian Air
November 27, 2022

The Martian atmosphere is nothing to sniff at or to sniff at all. Its less than one percent as thick as Earths atmosphere, and its made almost entirely of carbon dioxide. Yet it could be a valuable resource for future explorers. They might be able to

Martian Lake
November 26, 2022

The landing site of the Perseverance Mars rover could have been quite comfortable about three-and-a-half billion years ago. The rover discovered organic compounds the chemical building blocks of life in sediments in an ancient riverbed. The rock layer

The Sounds of Mars
November 25, 2022

On Mars, visitors from Earth are like loud neighbors who refuse to settle down. On Mars, though, the noise doesnt travel far it fades out in a hurry.Were learning a lot more about how sound travels on Mars from one of those noisy visitors, the Persev

Thanksgiving Sky
November 24, 2022

The night sky brings Thanksgiving to a beautiful end, highlighted by a couple of bright trios. One is in good view as night falls, while the other is at its best later on.As twilight fades away, the first trio forms a wide triangle in the southern sky. I

Ignominious End
November 23, 2022

The Soviet Unions effort to land cosmonauts on the Moon came to an explosive end 50 years ago today. The country launched its big Moon rocket on its fourth test flight. But like the first three, it ended with a giant boom.The N-1 rocket was about the sa

Close Calls
November 22, 2022

Earth will have a close call tonight. An asteroid thats big enough to cause major damage will pass just 708,000 miles away about three times the distance from Earth to the Moon.2005 LW3 is classified as a potentially hazardous asteroid one of about

Unfriendly Merger
November 21, 2022

A pair of supermassive black holes in the heart of a distant galaxy may be headed for an unfriendly merger. We could see them ram together in as little as three years, producing some big fireworks.The black holes have a combined mass of roughly 200 milli

Menkar
November 20, 2022

A star thats about to undergo some big changes highlights the head of Cetus, the whale or sea monster. It probably will become unstable, then blow its outer layers into space to form a colorful bubble.Menkar from an Arabic name that means the nostril