This is a list of known objects which occupy, have occupied, or are planned to occupy any of the five Lagrange points of two-body systems in space. Sun–Earth Lagrange points Sun–Earth L1 is the Lagrange point located approximately 1.5 million kilometers from Earth towards the Sun. Past probes International Cometary Explorer, formerly the International Sun–Earth Explorer 3 (ISEE-3), diverted out of in 1983 for a comet rendezvous mission. Currently in heliocentric orbit. The Sun–Earth L1 is also the point to which the Reboot ISEE-3 mission was attempting to return the craft as the first phase of a recovery mission (as of September 25, 2014 all efforts have failed and contact was lost). NASA's Genesis probe collected solar wind samples at from December 3, 2001, to April 1, 2004, when it returned the sample capsule to Earth. It returned briefly in late 2004 before being pushed into heliocentric orbit in early 2005. LISA Pathfinder (LPF) was launched on 3 December 2015, and arrived at on 22 January 2016, where, among other experiments, it tested the technology needed by (e)LISA to detect gravitational waves. LISA Pathfinder used an instrument consisting of two small gold alloy cubes. The Chang'e 5 orbiter (during extended mission. After ferrying lunar samples back to Earth in 2020, the transport module was sent to where it is permanently stationed to conduct limited Earth-Sun observations.) Present probes The Solar and Heliospheric Observatory (SOHO) in a halo orbit The Advanced Composition Explorer (ACE) in a Lissajous orbit WIND (At since 2004) The Deep Space Climate Observatory (DSCOVR), designed to image the sunlit Earth in 10 wavelengths (EPIC) and monitor total reflected radiation (NISTAR). Launched on 11 February 2015, began orbiting L1 on 8 June 2015 to study the solar wind and its effects on Earth. DSCOVR is unofficially known as GORESAT, because it carries a camera always oriented to Earth and capturing full-frame photos of the planet similar to the Blue Marble. This concept was proposed by then-Vice President of the United States Al Gore in 1998 and was a centerpiece in his 2006 film An Inconvenient Truth. Planned probes Aditya-L1 Interstellar Mapping and Acceleration Probe slated for launch in late 2024 NEO Surveyor SWFO-L1 Vigil (ESA). One spacecraft in L1 and one in L5. Sun–Earth L2 is the Lagrange point located approximately 1.5 million kilometers from Earth in the direction opposite the Sun. Spacecraft at the Sun–Earth L2 point