Martian lakes, $23 million titanium toilet, longest highway tunnel, Solely Sunshine girl, COVID-19 dogs

Oct 7, 2020 Episode 15

Do lakes on Mars mean there’s Martian life? Also, find out why NASA sends an expensive titanium toilet to space, why India built the longest and highest highway tunnel in the world, who the Solely Sunshine girl is and how canines are sniffing out the coronavirus in Finland.