Unit 5 - Astronomy

Front

What is a Supernova?

Back

A Supernova is a powerful and luminous explosion of a star, resulting in the ejection of dust, gas, and radiation into space.

Front

What are Main Sequence stars?

Back

Main Sequence stars are average stars that are more stable and common in the universe, typically fusing hydrogen into helium in their cores.

Front

What is a New Moon?

Back

A New Moon is a phase of the moon when it is not visible from Earth because it is positioned between the Earth and the Sun.

Front

What does the Big Bang Theory explain?

Back

The Big Bang Theory explains the origin of the universe, suggesting it began from a singular point and has been expanding ever since.

Front

What does it mean that the universe is expanding?

Back

The universe is expanding means that all galaxies are moving away from each other, indicating that the universe started from a single point.

Front

What is a Red Giant?

Back

A Red Giant is a late phase in the life cycle of a star, characterized by a large size and a reddish color, occurring after the star has exhausted its hydrogen fuel.

Front

What is a Black Hole?

Back

A Black Hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is a White Dwarf?

Back

A White Dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel and shed its outer layers.

Front

What is a Pulsar?

Back

A Pulsar is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles.

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages such as nebula, main sequence, red giant, supernova, and ultimately, either a neutron star or black hole.