Stars

Front

What is the average star in the universe?

Back

The average star in the universe is described as an 'average' star, which refers to stars like our Sun that have typical characteristics in terms of size, temperature, and brightness.

Front

What is a black hole?

Back

A black hole is an object in space with a gravitational pull so strong that nothing, not even light, can escape from it.

Front

What color of star is the hottest?

Back

Blue stars are the hottest stars, with surface temperatures exceeding 30,000 degrees Celsius.

Front

What color of star is the coolest?

Back

Red stars are the coolest stars, with surface temperatures below 3,500 degrees Celsius.

Front

What are nebulas?

Back

Nebulas are vast clouds of gas and dust in space, where new stars are born.

Tags

NGSS.HS-ESS1-3

Front

What is the name of our galaxy?

Back

Our galaxy is called the Milky Way.

Tags

NGSS.MS-ESS1-2

Front

What is the lifecycle of a star?

Back

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

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is the difference between a star and a planet?

Back

A star is a massive celestial body that generates light and heat through nuclear fusion, while a planet is a smaller body that orbits a star and does not produce its own light.

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, often resulting in the formation of a neutron star or black hole.

Tags

NGSS.HS-ESS1-3