A proplyd is
A) a primitive organism thought to exist on Jupiter's moon,Europa.
B) a protoplanetary disk,such as is observed around some stars in the Orion nebula,for example.
C) any planet of greater mass than Jupiter.
D) a planet orbiting a star beyond the Sun.

Question

Quizplus · Accepted Answer

A proplyd is a protoplanetary disk, which is often observed around young stars in regions such as the Orion nebula. The term "proplyd" is short for "protoplanetary disk."

A Proplyd Is