article_snippet: Astronomers came to the conclusion after calculating the chances of planets orbiting in the 'Goldilocks zone'.
article_snippet: To estimate the positions of the 'hidden' planets, the researchers updated a 250-year-old mathematical concept called the Titius-Bode law.
article_snippet: Pictured are exoplanetary systems where the previously known planets are marked with blue dots, while the red dots show the planets predicted by the Titius-Bode law on the composition of planetary systems.
article_snippet: The law, which inferred the existence of Uranus before it was seen, states that there is a certain ratio between the orbital periods of planets in a solar system.
article_snippet: the Titius-Bode law was formulated around 1770 and correctly calculated the position of Uranus before the Titius-Bode law was even discovered.
article_snippet: the Titius-Bode law states that there is a certain ratio between the orbital periods of planets in a solar system.
article_snippet: In 124 of the planetary systems, the Titius-Bode law fit with the position of the planets. '
article_snippet: Using T-B's law We tried to predict where there could be more planets further out in the planetary systems. '