Astrophysics (Index)About

LISA

(Laser Interferometer Space Antenna)
(proposed space mission to detect gravitational waves)

LISA (or Laser Interferometer Space Antenna) is a proposed European Space Agency space mission to detect gravitational waves by measuring the distance between three spacecraft using laser interferometry. Three probes, placed in a triangle, spaced 2.5 million kilometers from each other, would continually measure the distances between them, awaiting gravitational waves to cause a change. LISA Pathfinder was a 2015-2017 mission to test some of the necessary technology in space.

LISA is currently envisioned with a 2030s launch. It was earlier conceived aiming for deployment in the 2015-2025 time frame, but had a setback when NASA (an original participant) withdrew in 2011, at which time a scaled-down version called New Gravitational Wave Observatory was proposed in its place, but also was not accepted, and a full-scale LISA plan has been revived for further in the future.


(observatory,interferometer,space,ESA,gravitational waves,plan)
Further reading:
http://en.wikipedia.org/wiki/Laser_Interferometer_Space_Antenna
http://sci.esa.int/lisa/
https://lisa.nasa.gov/

Referenced by pages:
black hole merger
extreme mass ratio inspiral (EMRI)
European Space Agency (ESA)
gravitational wave (GW)
gravitational wave spectrum
interferometry
ion engine
New Gravitational Wave Observatory (NGO)
pulsar timing array (PTA)

Index