What is the significance of Kepler 186f in the search for life beyond Earth?

• It is the first planet discovered outside our solar system.

• It is the closest exoplanet to Earth.

• It is the first Earth-sized planet found in a habitable zone.

• It is the largest planet discovered by Kepler.

How does the Kepler Space Telescope detect exoplanets?

• By capturing images of planets directly.

• By measuring the gravitational pull of planets on stars.

• By monitoring the brightness of stars for dimming events.

• By analyzing the chemical composition of star atmospheres.

What was a major milestone achieved by the Kepler mission in 2011?

• The discovery of the first exoplanet.

• The launch of the Kepler Space Telescope.

• The discovery of the first circumbinary planet.

• The calculation of the number of stars with potential Earth-like planets.

What makes Kepler 62e and 62f particularly interesting to scientists?

• They are the closest exoplanets to Earth.

• They orbit a binary star system.

• They are the largest exoplanets discovered.

• They are located in the habitable zone and may be covered in water.

What is the main challenge in studying Kepler 62e and 62f?

• They are too small to be observed.

• They have no atmosphere.

• They are located 1200 light years away.

• They are too close to their star.

What is unique about Kepler 16b's orbit?

• It orbits three stars.

• It orbits two stars simultaneously.

• It has an irregular orbit.

• It is the fastest orbiting planet discovered.

Why was the discovery of circumbinary planets surprising?

• They have no solid surface.

• They are located outside the Milky Way.

• They are larger than any known planets.

• They were thought to be too unstable to exist.

What defines the circumstellar habitable zone?

• A region where planets are closest to their star.

• A region where liquid water can exist on a planet's surface.

• A region with the highest star density.

• A region with the most exoplanets.

Why is the habitable zone also called the Goldilocks Zone?

• It is where conditions are just right for life.

• It is the most densely populated region of space.

• It is the coldest region around a star.

• It is the hottest region around a star.

What conditions are necessary for a planet to be considered potentially habitable?

• It must have a thick atmosphere.

• It must have conditions similar to Earth.

• It must be located outside the Milky Way.

• It must be larger than Earth.