Topic: Earth Science
Stonehenge Stones More Geographically Diverse Than Originally Thought

Stonehenge Stones More Geographically Diverse Than Originally Thought

Image credit: Stefan Kühn Before we go, I have a new mystery for you. Researchers, with permission, took a small sample from the altar stone at Stonehenge and examined its composition and structure in a new level of detail. This information made it possible to determine the stone is 1000-2000 million years old, and chemically similar to rocks in the Orcadian Basin of Scotland. This research was a bit of a surprise to everyone because it had been assumed that this stone, like others, came from Whales.  Stonehenge was built about 5000 years ago in Southern England. With one exception, it...

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Closer Look: The cost of the climate of academia

Closer Look: The cost of the climate of academia

We are recording this episode about a week in advance of our normal recording date. This is because our producer Ally Pelphrey and I will be at the Balticon science fiction and fantasy convention over Memorial Day weekend and I’m then flying to Orlando where I’ll be...

Geology points to the path most chosen

Geology points to the path most chosen

One of the most common questions faced by those of us who study other worlds is this, “What good is studying planets when we have issues here on Earth?” Well, it turns out Earth happens to be a planet and sometimes geology can tell us really cool things about...

The Dying Sun will Take Out the Earth

The Dying Sun will Take Out the Earth

Clumps of debris from a disrupted planetesimal are irregularly spaced on a long and eccentric orbit around the white dwarf. Individual clouds of rubble intermittently pass in front of the white dwarf, blocking some of its light. Because of the various sizes of the...

Dear Future Self: Let’s Talk Climate Change

Dear Future Self: Let’s Talk Climate Change

Credit: NOAA Recent research published in Science Advances and led by Madalina Vlascenu finds that when it comes to climate change, we can’t scare people straight. Stories of gloom and doom focused on the fate of our world don’t inspire people to change their ways and...

Caught on Camera and Apprehended

Caught on Camera and Apprehended

Mohutsiwa Gabadirwe (center of photo) and Peter Jenniskens (left, kneeling) at the site of the second find of a piece of asteroid 2018 LA recovered in the Central Kalahari Game Reserve in central Botswana. Credit: SETI Institute Our Solar System contains a whole lot...