For the first time, scientists discovered an invisible alien planet whose gravity affects the orbit of another neighbouring planet. Both the planets, known as Kepler-19b & Kepler-19c, were detected by Nasa’s Kepler space telescope. The Kepler -19c is the invisible planet.
First, Kepler spotted 19b as it passed in front of, or transited, its host star. Then, scientists inferred the existence of 19c after observing that 19b’s transits periodically came a little later or earlier than expected. The gravity of 19c tugs on 19b, changing its orbit.
-1765545139847.jpg)
Comments
All Comments (0)
Join the conversation