Kepler-22b Trivia Questions

NASA's Kepler telescope detected the planet by measuring tiny brightness dips as Kepler-22b passed in front of its star—a standard transit method.

Kepler-22b orbits its star every 289.9 days, so its 'year' is roughly 75 days shorter than Earth's 365-day year.

Kepler-22b is 600 light-years away, and no human-made probe can travel that far in a century—current tech would take millions of years.

Kepler-22b orbits at about 0.85 AU from its star, similar to Venus's distance from the Sun, not closer than Mercury (0.4 AU).

Discovered by NASA's Kepler mission in 2011, Kepler-22b was the first confirmed planet in the habitable zone of a Sun-like star, where liquid water could exist.

Kepler-22b is about 2.4 times Earth's radius, making it a 'mini-Neptune' likely composed of gas or ocean, not a rocky surface like Earth.

The star Kepler-22 is a G-type star like our Sun but slightly smaller, cooler, and less luminous, classified as G5V.

While some models suggest a water world, it's not confirmed—Kepler-22b could be a gas dwarf or have a thick atmosphere; we lack direct evidence.