Exoplanets

What is an exoplanet?

• A planet within our solar system

• A planet outside our solar system

• A moon orbiting a gas giant

How do scientists detect most of exoplanets?

• Using telescopes to directly observe them

• Monitoring changes in the brightness of a star

• Sending spacecraft to explore distant star systems

What is the habitable zone (Goldilocks zone) of an exoplanet?

• The region where temperatures are too hot for life

• The region where conditions may be suitable for liquid water and, thus, life

• The area around a star where there is no chance of finding any planets

What role does the atmosphere play in supporting life on an exoplanet?

• It provides a source of light

• It regulates temperature and protects from harmful radiation

• It has no impact on the possibility of life

What is the primary component of Earth's atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

Which of the following factors is crucial for determining the potential habitability of an exoplanet?

• Size and mass of the exoplanet

• Presence of a magnetic field

• Distance from its host star and the composition of its atmosphere

What is a potential biosignature in an exoplanet's atmosphere that scientists might look for?

• High levels of nitrogen

• Seasonal changes in temperature

• Unusual combinations of gases like oxygen and methane

Which type of exoplanet is most likely to have conditions suitable for life?

• Hot Jupiter

• Super-Earth/Terrestrial

• Ice Giant

Why is the presence of liquid water considered essential for the potential habitability of an exoplanet?

• Water is essential for drinking

• It serves as a universal solvent for biochemical reactions

• Liquid water has no role in supporting life

What is the significance of the Drake Equation in the search for extraterrestrial life?

• It calculates the number of stars in a galaxy

• It estimates the number of advanced civilizations in our galaxy

• It predicts the size of exoplanets