On Thursday , NASA scientists will share news of what they are calling the `` discovery of an intriguing planetary system . '' The Kepler observatory has been recording blips from 150,000 stars . The stars dim in brightness if a planet crosses in front of them . If the star is too close, it will be blocked by the planet's gravity and not glow at all.
The Kepler observatory has been recording blips from 150,000 stars . The stars dim in brightness if a planet crosses in front of them . If the star is too close, it will be blocked by the planet's gravity and not glow at all.