12 Questions
What is a protostar?
A very young star that is still gathering mass from its parent stellar nebula.
What initiates nuclear fusion in a star?
Core becoming denser and hotter.
What differentiates massive stars from average stars?
Massive stars burn through their nuclear fuel more quickly.
What is the defining characteristic of a red giant?
It is a stage in the life cycle of a star with mass similar to the Sun.
What powers a star to maintain a stable size and temperature?
Constant energy output from nuclear fusion.
When does nuclear fusion ignite in a star?
Once the core temperature reaches millions of degrees.
What is the final evolutionary phase of a star that has exhausted its nuclear fuel and has become a white dwarf?
Black Dwarf
Which type of neutron stars emit beams of electromagnetic radiation and are known as pulsars?
Magnetar
What marks the conclusion of the luminous energy-producing aspect of a star's existence?
Black Dwarf
During a supernova, what process leads to the formation of heavy elements like gold, silver, and uranium?
Explosive Rebound
Which type of star experiences gravitational collapse, leading to an explosive rebound known as a supernova?
Black Hole
What do red super giants have in common with red giants in terms of nuclear fusion?
They fuse helium into carbon and oxygen
Learn about the formation of a star, starting from a stellar nebula to the creation of a protostar through the force of gravity. Understand the evolution of a protostar as it gathers mass and undergoes nuclear fusion initiation.
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