The Hottest Exoplanets in the Universe

The video explores the fascination with extreme planets, focusing on three ultra hot worlds: TOI-2109b, Kelt-9b, and the hypothetical Kepler 70b. TOI-2109b is a gas giant close to its star, with a year lasting only 16 hours. Kelt-9b, the hottest known planet, orbits a star twice as hot as our sun, leading to extreme temperatures that could melt any material. Kepler 70b, though likely non-existent, was thought to be even hotter. These planets, while uninhabitable, showcase the diversity of worlds in our galaxy.

Why are researchers interested in studying planets that are vastly different from Earth?

• To discover new elements

• To locate potential mining sites

• To understand the extremes of planetary formation

• To find new habitable zones

What is a unique feature of the planet TOI-2109b?

• It is made entirely of ice

• It is the closest planet to Earth

• It has rings like Saturn

• It has a year that lasts 16 hours

What makes Kelt-9b hotter than most stars?

• Its proximity to a very hot star

• Its rapid rotation

• Its dense atmosphere

• Its large size

What challenge do astronomers face when detecting planets like Kepler 70b?

• The brightness variations are hard to interpret

• The planets are too small to detect

• The planets move too slowly

• The planets are too far from their stars

What does the study of extreme exoplanets help us understand?

• The diversity of planetary systems

• The potential for human colonization

• The history of our solar system

• The future of space travel