Life Cycle of a Star & Types of Galaxies

This is where stars are born. It's composed of a compressed cloud of dust and Hydrogen gas.

• Stellar Nebula

• Planetary Nebula

• Supernova

• Black Hole

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

This is an early stage of a star. There is no nuclear fusion yet.

• Neutron star

• Protostar

• White dwarf

• Black dwarf

Our sun is in this young-adult stage of a star.

• Main Sequence - regular star

• Main Sequence - massive star

• Red Giant

• White Dwarf

Tags

NGSS.HS-ESS1-1

At this stage, the star burns helium until it forms a carbon core and other heavier elements.

• Main Sequence - regular star

• Main Sequence - massive star

• Red Giant

• White Dwarf

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Like our sun, this star burns Hydrogen for millions, NOT billions of years with nuclear fusion, forming Helium at the core.

• Main Sequence - regular star

• Main Sequence - massive star

• Red Giant

• Red Supergiant

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Remains of a dying star. It is still very hot and bright.

• Neutron star

• White Dwarf

• Black Dwarf

• Protostar

A dead star that is no longer hot nor bright.

• Neutron star

• White Dwarf

• Black Dwarf

• Protostar

A glowing star burning Helium gas in its core until the fusion of heavier elements like iron occurs.

• Red Supergiant

• Supernova

• Neutron star

• Black Hole

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

The collapse of the core happens in less than a second, creating a huge explosion that's brighter than the entire galaxy.

• Red Supergiant

• Supernova

• Neutron star

• Black Hole

Tags

NGSS.HS-ESS1-3

If the star survives the explosion, the core condenses into a tiny and super heavy material used to make hammers for Thor.

• Red Supergiant

• Supernova

• Neutron star

• Black Hole