"Gaia's Next Trick: Unveiling Background Gravitational Waves in the Universe"

Astronomers propose using the Gaia probe to detect gravitational waves by observing their impact on the movement of asteroids in our Solar System. Current methods for detecting gravitational waves are limited to specific frequencies, but Gaia's highly accurate astrometric measurements could potentially reveal the passage of gravitational waves through the position of stars or nearby objects. The researchers also suggest that Gaia may be able to detect gravitational waves based on their effect on asteroids, particularly those with wavelengths ranging from the diameter of the Earth to the distance between the Sun and Pluto.