NASA discovers ‘most similar planet to Earth’ ever found

Kepler 1649-C, discovered by the Kepler spacecraft, is an exoplanet similar in size to Earth, with a surface temperature potentially conducive to liquid water. It orbits a red dwarf star closely, completing a year in just 19.5 Earth days, and lies within the habitable Goldilocks zone. The planet has a neighboring planet, Kepler 1649-B, and their orbital resonance suggests the possible presence of another, yet undetected, planet.

What is the size of Kepler 1649-C compared to Earth?

• 1.06 times the size of Earth

• 0.95 times the size of Earth

• 1.5 times the size of Earth

• 2 times the size of Earth

What percentage of sunlight does Kepler 1649-C receive compared to Earth?

• 75%

• 100%

• 50%

• 125%

How long is a year on Kepler 1649-C in Earth days?

• 45 Earth days

• 30 Earth days

• 19.5 Earth days

• 10.5 Earth days

What is the significance of the Goldilocks zone for Kepler 1649-C?

• It allows for the possibility of liquid water.

• It has no impact on the planet's temperature.

• It is too cold for any form of water.

• It is too hot for any form of water.

What is the orbital ratio between Kepler 1649-C and its neighboring planet?

• 1:1

• 9:4

• 2:3

• 4:9