17 April 2020
A six-planet system is discovered and more could be hiding say astronomers
...due in part to the difficulty of finding systems such as these. To discover the planets of HD 158259, astronomers took 209 radial velocity measurements using SOPHIE – a method which measures the change in light that occurs when the gravitational pull...
19 November 2021
New mission to search for habitable planets close to Earth announced
... a star makes as it responds to the gravitational tug of a smaller companion such an an orbiting planet. This method is known as the radial-velocity or “wobble” method and was the technique used to find the first planets orbiting Sun-like stars...
