What do these bodies tell us about the difference between planets and stars? Planets are created in protoplanetary disks surrounding newly formed stars. After the initial collapse of a molecular ...
In this feature, learn the difference between pulsars and ... Brown dwarf—An astronomical object with mass in the range between a planet and a star (greater than 1.3 percent and less than ...
Is it a star, a plane, a helicopter, or a drone? At night, it can be hard to tell the difference ... you’re wondering if it’s a star or a planet, just know when you’re looking up at the ...