Its mass is approximately 4.5 times the mass of the Sun. Although most stars are much larger than planets, there are some planets that boast impressive size as well. Start the day smarter.

In 1964, Kardashev published a paper proposing a way to categorize a planet's energy use, a system that has come to be known ...

On planets orbiting close to their respective ... The cold gas giants are literally off the chart. The logarithmic scale used initially here allows for an easier comparison of the exoplanets.

Its mass is approximately 4.5 times the mass of the Sun. Although most stars are much larger than planets, there are some planets that boast impressive size as well. Jupiter is the biggest planet in ...