Exploring Pluto: Mysteries and Discoveries

What significant discovery did the New Horizon space probe make about Pluto in 2015?

• Pluto has an atmosphere similar to Earth's.

• Pluto is larger than Earth.

• Pluto has a subsurface ocean.

• Pluto has a ring system.

Why was Pluto reclassified as a dwarf planet in 2016?

• It is smaller than Earth's moon.

• It has not cleared its orbit of other objects.

• It does not orbit the Sun.

• It is too far from the Sun.

What was the public reaction to Pluto's reclassification as a dwarf planet?

• It was widely accepted.

• It sparked significant controversy.

• It was celebrated as a scientific breakthrough.

• It was ignored by most people.

What unexpected geological feature was found on Pluto by the New Horizon's probe?

• Bumpy volcanoes

• Flowing rivers

• Active tectonic plates

• Large impact craters

What is the significance of the lack of impact craters on Pluto's surface?

• It indicates a young surface.

• It shows Pluto is not affected by asteroids.

• It suggests a lack of geological activity.

• It means Pluto has no atmosphere.

What is one theory about the source of heat on Pluto?

• Heat from its atmosphere

• Heat from the Sun

• Radioactive decay within its core

• Heat from neighboring planets

How does the theory of a hot core challenge previous beliefs about Pluto?

• It suggests Pluto is a gas giant.

• It indicates Pluto formed rapidly and violently.

• It implies Pluto had a cold start.

• It means Pluto is closer to the Sun than thought.

What is the potential significance of a liquid ocean on Pluto?

• It could increase Pluto's size.

• It could make Pluto a planet again.

• It could cause Pluto to melt.

• It could support life.

What sustains the liquid ocean on Pluto according to recent studies?

• Tidal forces from neighboring planets

• Radioactive decay

• Heat from the Sun

• Volcanic eruptions

What does the presence of warm water on Pluto suggest?

• Pluto is a gas giant.

• Pluto has a thick atmosphere.

• There could be life on Pluto.

• Pluto is moving closer to the Sun.