Watching from his garden at Woolsthorpe Manor, Isaac Newton began thinking about the apple's descent: a line of thought that, two decades later, ended with his conclusion that there must be some sort of universal force governing the motion of apples and cannonballs and
even planetary bodies.
Not exact matches
Gravitational microlensing works by a
planetary body — or any
body for that matter with significant mass, such as a brown dwarf or
even a black hole — passing in front of a star.
Both objects formed among the rocky and icy protoplanets beyond the Solar System's «ice line» now located around 2.7 AUs, but the early development of Jupiter apparently prevented such large protoplanets between the gas giant and planet Mars from agglomerating into
even bigger
planetary bodies, by sweeping many into pulverizing collisions as well as slinging them into the Sun or Oort Cloud, or
even beyond Sol's gravitational reach altogether.