Dark streaks seen on the surface of Mars are likely to be periodic flows of liquid water – something previously though almost impossible.
The tongues of the long-tongued bumblebees in Colorado are shorter than archived long-tongued bumblebees from forty years ago. This appears to be an adaptation to climate change and while it's good news for the bees, it could be bad news for the flowers they feed on.
Four kinds of gut bacteria have been found to havea strong preventative link to asthma. But there's a catch - it's only significant in the first three months after birth.
We're fairly certain that a massive asteroid collision with Earth wiped out the dinosaurs 65 million years ago. But another theory suggests extensive volcanic action was already doing that, and maybe the asteroid just helped things along.
Helen and Lucas have been to see the blockbuster film The Martian, and they liked it!
Direct download: SoT_0202.mp3
-- posted at: 1:22am AEST