A new planet 'HD 189733b', located about 63 light-years from Earth, has left the scientists stunned and its striking blue colour has earned comparisons to Earth. Scientists believe this 'alien' blue planet is one of the most hostile places ever discovered.
The planet completes an orbit around its star in just over two days, meaning a year there lasts less than a weekend on Earth. Researchers believe the planet experiences scorching temperatures, supersonic winds, and even rain made of molten glass.