Proxima Centauri B is officially the exoplanet closest to our solar system

Proxima B is an exoplanet orbiting in the habitable zone of Proxima Centauri, the star closest to our sun. Researchers from the University of Geneva confirmed its existence using the Espresso spectrograph in Chile. Proxima B is 1.17 times the mass of Earth and completes an orbit in 11.2 days. It receives similar energy from its sun, suggesting potential for life. However, its sun, an active red dwarf, bombards it with significantly more x-rays than Earth receives, posing challenges for habitability.

What is the name of the closest star to our sun?

• Proxima Centauri

• Alpha Centauri

• Sirius

• Betelgeuse

What is the mass of Proxima B in relation to Earth?

• 1.17 times

• 2 times

• 0.5 times

• 1.5 times

How long does it take for Proxima B to orbit its sun?

• 11.2 days

• 24 hours

• 30 days

• 365 days

What is the potential for life on Proxima B based on its energy reception?

• Could harbor life

• Definitely has life

• No chance of life

• Life is impossible

What type of star is Proxima B's sun?

• Red Dwarf

• Yellow Dwarf

• Blue Giant

• White Dwarf