Subglacial Lake

Ep 44: Subglacial Lakes and Life on Frozen Moons – with guest Anja Rutishauser

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Far beneath the Canadian ice cap, isolated from the sun and the wind, lies two entire lakes.  These subglacial lakes, recently discovered by Anja Rutishauser and her team, seem like they shouldn’t exist at all.  For starters, they have a temperature far below the freezing point of water.  This implies that perhaps these lakes are unique […]

bias in machine learning algorithms

Ep 43: Is there Bias in Machine Learning Algorithms? – with guest Dr. Joshua Kroll

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The world today generates an immense amount of data. Companies gather data on our buying habits, our location, and how we spend our time. The enormity of this data  is too much for human analysts to dig through alone.  Instead, they use machine learning algorithms. These algorithms take big data to analyze your routines,  infer […]

space junk

Ep 42: Space Junk, Trash on the Moon, and the Earth’s Copper Ring – with guest Dr. Lisa Ruth Rand

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What happens to old satellites? Or to astronauts’ trash? It turns out that the Earth is surrounded by a sphere of garbage – often referred to as space junk. This consists of everything from bits of frozen coolant, paint flecks, astronauts’ tools, and even a toothbrush. There is no trash collection in space. What happens, […]