Two studies show LISA could reveal exoplanets

Two studies show that the planned LISA mission could reveal exoplanets. The mission is in development.

LISA is an ESA-led mission in development, with NASA as a collaborative partner. Launch is expected in the mid-2030s.

NASA's role includes telescopes, other critical hardware, engineering support, and scientific support.

The first paper examines a detection method and determines planet masses and orbital periods. The second investigates confirmation using the James Webb Space Telescope.

The method is similar to radial velocity. Double white dwarf systems emit gravitational waves at a nearly continuous frequency, and a massive planet would cause reflex motion and Doppler modulation that appears as sidebands.

Double white dwarf systems are expected to be LISA's most common source. White dwarfs are Earth-sized remnants of stars like the Sun, and these systems have orbital periods of less than an hour. No exoplanets have been found around binary white dwarfs yet.

LISA is expected to resolve about 10,000 individual systems and around 100 mixed binaries containing white dwarfs, neutron stars, or black holes.

For readers tracking the lunar industry, the link is indirect: it follows NASA and ESA work on space telescopes and mission hardware.

The studies add a possible exoplanet role to an ESA-led mission already expected to resolve double white dwarf systems and mixed binaries.

This continues the site's coverage of LISA development. In October 2026, this site reported that NASA and L3Harris were advancing telescope work for the ESA-led mission, with progress toward flight hardware.

LISA is in development, with launch expected in the mid-2030s.