Some stars in the universe grow to 300 times larger our own sun. But how do they get so big, and how do they sustain their ...

The size of the Solar System and the Universe is truly beyond our comprehension. When we think of the vastness of space, we often imagine distances that stretch far beyond the Earth, yet even our ...

A giant planet the size of Saturn orbiting a sun-like star has potentially been identified in our nearest neighbouring stellar system, Alpha Centauri.