cryptochromes are molecules that use light to generate radical pairs. The pair swings between these two states but a magnetic field tips the balance, making one or the other more likely. Since cryptochromes need light to work, they searched specifically in bird eyes. Team were also curious how cryptocrome proteins compared between birds that migrate and birds that don't. And it looks like the cryptochrome for from the migratory birds are significantly more magnetically sensitive than the same molecule from a chicken.
Researchers isolate the protein thought to allow birds to sense magnetic fields, and astronomers pinpoint the stars that could view Earth as an exoplanet.
In this episode:
00:45 Homing in on the molecule that helps birds find their way.
How migratory birds sense magnetic fields is a long standing mystery in sensory biology. Now researchers have isolated a molecule, found within the eyes of these birds, which might act as a compass using quantum mechanics.
Astronomers have catalogued almost 2,000 stars from which the Earth could be detected passing in front of the Sun. The team suggest that these stars would be good targets to search for planets that could harbour life.
We discuss some highlights from the Nature Briefing. This time, the unexpected science kicked up by the Ingenuity helicopter on Mars, and how science is embracing the world of non-fungible tokens (NFTs).