These Nearby Alien Planets Are Stranger – and More Hostile – Than Expected

Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary systems can form and survive. Just under six light-years from Earth, Barnard’s Star hosts four small worlds unlike any planet in our own Solar System. The nearby star, second only to Alpha Centauri in proximity to the Sun, [...]

from SciTechDaily https://ift.tt/rtCANTs