The stages below are not in the right order. Number the stages in the correct order. The star begins to run out of fuel and expands into a red giant or red supergiant.
Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula
What happens next depends on the mass of the star.
Heat and pressure build in the core of the protostar until nuclear fusion takes place.
The force of gravity pulls a nebula together forming clumps called protostars.
Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine.

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

What is the relationship between globular clusters and the milky way?