Summary:
- The article discusses the Laser Interferometer Space Antenna (LISA), a proposed space-based gravitational wave observatory that will be able to detect low-frequency gravitational waves.
- LISA will consist of three spacecraft flying in a triangular formation, with lasers continuously measuring the distance between them to detect any changes caused by passing gravitational waves.
- The article explains how LISA's design and placement in space will allow it to observe a different range of gravitational waves compared to ground-based detectors like LIGO, enabling the study of previously unobservable cosmic events.