Stars

Front

What is the biggest star in the sky?

Back

The Sun is not the biggest star; there are larger stars in the universe.

Front

Why do other stars appear smaller than the Sun?

Back

Other stars appear smaller because they are much farther away from Earth.

Front

Do massive stars have lower absolute brightness?

Back

False, massive stars generally have higher absolute brightness.

Front

What is a nebula?

Back

A nebula is a large cloud of gas and dust in space, often the birthplace of stars.

Front

Which color star has the highest surface temperature?

Back

Blue stars have the highest surface temperature.

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages: nebula, main sequence, red giant, and supernova or white dwarf.

Front

What is absolute brightness?

Back

Absolute brightness is the measure of a star's intrinsic brightness, regardless of its distance from Earth.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a star's life cycle.

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.