LISA Mission Aims to Detect Milky Way's Gravitational Wave Hum
Millions of paired dead stars, predominantly white dwarfs, within the Milky Way galaxy are known to generate ripples in spacetime as they orbit each other. Individually, these gravitational waves are too faint for detection. However, their collective effect creates a continuous background hum throughout the galaxy. A planned European space mission, known as LISA, is currently under development with the specific objective of listening for and studying this pervasive gravitational wave signal.
Millions of pairs of dead stars, primarily white dwarfs, are present throughout the Milky Way galaxy. These stellar remnants orbit one another, a process that creates ripples in the fabric of spacetime.
While each individual ripple generated by these binary systems is too weak to be detected in isolation, their combined activity produces a constant, low-frequency gravitational wave background, often conceptualized as a galactic 'hum.'
A planned European space mission, named LISA (Laser Interferometer Space Antenna), is currently under construction. The mission's primary goal is to listen for and analyze this pervasive gravitational wave hum, providing a new method to study the galaxy.
(Source: Phys.org)
