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Thursday, 9 May 2019

Gravitational forces in protoplanetary disks may push super-Earths close to their stars

Astronomers found that as planets form out of the chaotic churn of gravitational, hydrodynamic -- or, drag -- and magnetic forces and collisions within the dusty, gaseous protoplanetary disk that surrounds a star as a planetary system starts to form, the orbits of these planets eventually get in synch, causing them to slide -- follow the leader-style -- toward the star.

from All Top News -- ScienceDaily http://bit.ly/2Jb2s5M

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