00:04earth tilts as it spins on its axis but in the wide range of things we find particularly unique
00:09about our planet with regards to habitability that's not one of the most important things for
00:13life right well science alert reports according to a new study a specific axial tilt may be
00:19crucial for oxygen production one of the building blocks of intelligent life billions of years ago
00:24earth was much different than it is today before the great oxidation event around 2.4 to 2 billion
00:29years ago there wasn't much oxygen here at all so the researchers created a model that would allow
00:34them to figure out how cyanobacteria or oxygen producing ocean life could have come to thrive
00:39several factors like increased day length continental creation and continental movement played their part
00:44in cyanobacterial proliferation but axial tilt in our planet's case a 23.5 degree offset from the sun
00:51created the seasons which also had an impact on the oceans where it created currents that mixed bodies
00:56of water all over the world mixing that also shifted and spread out nutrients providing food
01:01to cyanobacteria and increasing our world's oxygen production by double but tilt may also have a
01:06goldilocks zone the planet uranus for example has an extreme tilt a full 98 degrees offset from the sun
01:12creating seasons that would be far too hectic for life to survive
01:16you
01:17you
Comments