Scientists confirm existence of new 'waterworld' planet GJ1214B

The video discusses the exoplanet GJ1214B, which is a water world with a thick, steamy atmosphere. It is about 2.7 times the Earth's diameter and has a mass seven times greater. Observations using the Hubble telescope suggest that a significant portion of the planet's mass is composed of water.

What type of atmosphere does the planet have?

• A thin, dry atmosphere

• A thick, steamy atmosphere

• A cold, icy atmosphere

• A hot, fiery atmosphere

How does the diameter of Exoplanet GJ1214B compare to Earth's?

• It is 3.5 times Earth's diameter

• It is 2.7 times Earth's diameter

• It is 1.5 times Earth's diameter

• It is the same as Earth's

What is the mass of Exoplanet GJ1214B compared to Earth?

• Five times greater

• Twelve times greater

• Seven times greater

• Ten times greater

Which telescope was used to observe Exoplanet GJ1214B?

• Hubble Telescope

• James Webb Telescope

• Kepler Telescope

• Spitzer Telescope

What significant component makes up a large fraction of the planet's mass?

• Iron

• Water

• Carbon

• Silicon