Milky Way red dwarfs potentially habitable planets estimate

Red dwarfs could greatly increase the number of potentially habitable planets

≈40 billion

One estimate suggests the Milky Way may contain about 11 billion Earth-sized planets in potentially habitable orbits around Sun-like stars. If planets around much more common red dwarf stars are included, the estimate rises to about 40 billion.

More than a third of global crop calories go to feeding animals

A widely cited analysis of global crop production found that about 55% of crop calories were used directly as human food, while 36% went to animal feed and 9% to biofuels or other industrial uses. Feeding crops to livestock does not return all those calories as meat, milk or eggs. How harvests are used therefore matters as much as how much food is grown.

A thin clay layer held unusual iridium

Up To 160× Background

A thin layer of clay in Italy contained up to 160 times the usual amount of iridium. Because iridium is rare on Earth but common in asteroids, researchers proposed that a vaporized impactor spread it around the planet before they identified the crater.

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Milky Way red dwarfs potentially habitable planets estimate

Red dwarfs could greatly increase the number of potentially habitable planets

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