To weigh KOI-314c, the scientists used a new technique called transit timing variations (TTV), which only works when more than one planet orbits a star felicity amour kingdom.

The two planets tug on each other, slightly altering the time they take to cross or 'transit' the star's face 半世陽光.

Analysing the way the planetary wobbles affect light coming from the star makes it possible to calculate their mass wisdom speaks.

KOI-314c's companion world is similar to it in size but weighs four times more than the Earth 布拉格沒有眼淚.

The new discovery was made by chance as scientists scoured data from the Kepler space telescope looking for evidence of moons rather than planets holy rescue amazemen.

'When we noticed this planet showed transit timing variations, the signature was clearly due to the other planet in the system and not a moon,' said Dr Kipping.

'At first we were disappointed it wasn't a moon, but then we soon realised it was an extraordinary measurement Speed Dating.'