[NEWS] Four space science links: Mars, RZ Piscium, Alpha Centauri

[rfmcdonald]

• Could it be, as one theory suggests, that Mars did not form in the same area of the young solar system as Earth and Venus?


• RZ Piscium, a young star 500 light-years away, is eating its planets. CBC reports.


• Universe Today links to a paper indicating upper limits for planets at Alpha Centauri. Earth-like planets orbiting A and B are still possible.


• The kilonova behind GW170817, detected in galaxy NGC 4993 earlier this year, is thought to have produced a black hole based on X-ray emissions. Universe Today reports.