Nebulae Theory

About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way. What happened next?

• Shock waves hit the nebula causing it to collapse.

• The energy enriched nebula begins to contract further due to gravity.

• Supernova of a nearby star occurs.

Tags

NGSS.HS-ESS1-6

Supernova of a nearby star occurs. Then what?

• Shock waves hit the nebula causing it to collapse.

• The energy enriched nebula begins to contract further due to gravity.

• The nebula begins to spin and flatten.

Tags

NGSS.HS-ESS1-3

Shock waves hit the nebula causing it to collapse. Then what?

• Supernova of a nearby star occurs.

• The energy enriched nebula begins to contract further due to gravity.

• The nebula begins to spin and flatten.

The energy enriched nebula begins to contract further due to gravity. Then what?

• The center of the nebula begins to get hot and dense.

• Shock waves hit the nebula causing it to collapse.

• The nebula begins to spin and flatten.

The nebula begins to spin and flatten. Then what?

• The center of the nebula begins to get hot and dense.

• Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas.

• A protostar forms in the center of the nebula.

Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas. Then what?

• The center of the nebula begins to get hot and dense.

• A protostar forms in the center of the nebula.

• The nebula begins to spin and flatten.

The center of the nebula begins to get hot and dense. Then what?

• The nebula begins to spin and flatten.

• The SUN is born, fusion begins in the core.

• A protostar forms in the center of the nebula.

Tags

NGSS.HS-ESS1-1

A protostar forms in the center of the nebula. Then what?

• Shock waves hit the nebula causing it to collapse.

• The center of the nebula begins to get hot and dense.

• The SUN is born, fusion begins in the core.

Tags

NGSS.HS-ESS1-1

The SUN is born, fusion begins in the core. Then what?

• Planetesimals (small rock or icy bodies) begin to form. Rocky pieces in the outer rings and icy pieces in the inner rings.

• A protostar forms in the center of the nebula.

• About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.

Planetesimals (small rock or icy bodies) begin to form. Rocky pieces in the outer rings and icy pieces in the inner rings. Then what?

• About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way.

• About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.

• The SUN is born, fusion begins in the core.

Tags

NGSS.HS-ESS1-6