Space Time Journal Club Quiz

What mythological figure is the star Kronos compared to?

• Zeus

• Hercules

• Titan

• Apollo

What percentage of stars are typically found in binary systems?

• 75%

• 50%

• 25%

• 10%

What tool did Semyeong Oh and collaborators use to identify wide binary stars?

• Chandra X-ray Observatory

• Gaia Telescope

• Hubble Telescope

• James Webb Telescope

What unusual element abundance was found in Kronos?

• Oxygen

• Lithium

• Carbon

• Helium

How many Earth masses of material did researchers calculate Kronos might have consumed?

• 10 Earth masses

• 15 Earth masses

• 20 Earth masses

• 5 Earth masses

What is one proposed method to reduce the sun's luminosity?

• Star lifting

• Building a giant sunshade

• Using reflective aerosols

• Increasing Earth's albedo

What is the main benefit of using orbiting solar farms to block sunlight?

• It is temporary

• It provides unlimited free energy

• It is less efficient

• It changes atmospheric chemistry

What celestial body is suggested to help move Earth to a safer orbit?

• A comet

• The Moon

• Mars

• An asteroid

What is the primary goal of deflecting an asteroid near Earth and Jupiter?

• To decrease Earth's distance from the sun

• To increase Earth's angular momentum

• To decrease Earth's rotation speed

• To increase Earth's mass

What is the potential consequence if Earth remains our only home?

• We will colonize other planets

• We will develop new technologies

• We will face extinction

• We will thrive