Exploring the Possibility of Life Beyond Earth

What is the significance of finding life on another planet within our solar system?

• It would confirm that life is unique to Earth.

• It would prove that life cannot exist outside Earth.

• It would suggest that life is a common occurrence in the universe.

• It would mean that Earth is the only habitable planet.

Which method relies on observing a star's wobble to detect exoplanets?

• Transit method

• Radial velocity method

• Direct imaging

• Gravitational lensing

What is the primary challenge in studying exoplanet atmospheres?

• The similarity of all exoplanet atmospheres to Earth's.

• The absence of exoplanets in the universe.

• The distance of exoplanets from Earth.

• The lack of technology to detect atmospheres.

What is an Earth analog?

• A planet with a similar distance from its star as Mars.

• A planet with a similar size and mass to Earth.

• A planet with a similar surface temperature to Mercury.

• A planet with a similar atmosphere to Venus.

What makes Kepler-452b a significant discovery?

• It is the first planet found with liquid water.

• It is the first Earth-sized planet in the habitable zone of a G-type star.

• It is the closest exoplanet to Earth.

• It is the largest exoplanet discovered.

What was the primary mission of the Kepler Space Telescope?

• To discover Earth-like planets in the habitable zone.

• To study the atmosphere of Jupiter.

• To explore the surface of Mars.

• To find evidence of life on the Moon.

What is the circumstellar habitable zone?

• A region where a planet is too cold for life.

• A region where a planet has no atmosphere.

• A region where a planet is too hot for life.

• A region where a planet can maintain liquid water on its surface.

Why is the discovery of planets around binary stars significant?

• It shows that planets can only form around single stars.

• It proves that binary stars cannot have planets.

• It suggests that binary stars are rare in the universe.

• It confirms that planets can orbit two stars simultaneously.

What is the main goal of the James Webb Space Telescope?

• To study the atmospheres of exoplanets for signs of life.

• To replace the Hubble Space Telescope.

• To explore the surface of Mars.

• To observe the outer planets of our solar system.

What is the significance of the Trappist-1 discovery?

• It is the first star system with no planets.

• It is the first discovery of planets with no atmospheres.

• It is the first discovery of planets around a sun-like star.

• It is the first discovery of Earth-sized planets around an ultra-cool dwarf star.