How long does a protoplanetary disk last?
few million years
Why was the protoplanetary nebula flat?
Why was the protoplanetary nebula flat? Nebulae form in a variety of shapes, and ours happened to be disk-shaped. The nebula became flat due to gravitational contraction along its axis. It flattened as a result of collisions between particles in the nebula.
Why was the protoplanetary nebula flat quizlet?
They were formed inside of stars or supernovae that exploded before the solar system formed. Why was the protoplanetary nebula flat? It flattened as a result of collisions between particles in the nebula. They collided gently and stuck together through electrostatic forces.
What does the word Nova mean?
Meaning:new. In the world of astronomy, a nova is a star that suddenly releases a huge burst of energy, temporarily becoming extraordinarily bright. What an exciting name for baby girl! It was derived from the Latin “novus,” or “new,” and was first used as a name by American parents in the 19th century.
What is another word for top notch?
What is another word for top-notch?
| excellent | wonderful |
|---|---|
| fantastic | superb |
| fine | grand |
| awesome | splendid |
| stellar | fabulous |
What does stellar performance mean?
(of people or their activities) extremely high in quality; excellent: The cellist gave a stellar performance before an enthusiastic audience.
Does stellar mean good?
Meaning outstanding, wonderful, better than everything else, stellar is a word of praise or excitement. Thomas Edison invented many things, but his stellar achievement might have been the light bulb.
What does it mean when a person is stellar?
A stellar person or thing is considered to be very good.
What is the full meaning of stellar?
Science Teaching for English Learners Leveraging Academic Rigor. Academic & Science. Rate it: STELLAR. STEM Teaching Excellence for Leading Learning Articulation and Reflection.