# NASA and ESA Forge Space Partnership

> NASA and ESA collaborate on LISA mission despite budget tensions.
- Title: NASA and ESA Forge Space Partnership · Ars Technica | Shortify
- Summary: NASA and ESA collaborate on LISA mission despite budget tensions. NASA and ESA partner on LISA gravitational wave mission with NASA covering one-third of…
- Keywords: nasa, esa, lisa mission, gravitational waves, space station, moon base, mars rover, new athena, science, Forge, Space, Partnership
- Source: Ars Technica — https://arstechnica.com/space/2026/10/nasa-is-keen-on-pursuing-at-least-one-joint-science-mission-with-europe
- Published: 2026-10-07T11:00:40+00:00
- Read time: 2 min
- Topics: nasa, esa, lisa mission, gravitational waves, space station, moon base, mars rover, new athena, science
## NASA shifts focus
NASA prioritizes Moon Base over lunar missions and cancels Mars Sample Return after budget exceeds $10 billion.
## ESA struggles to find role
European Space Agency seeks place in NASA’s Moon Base program after Lunar Gateway cancellation.
## NASA demands contributions
NASA Administrator Jared Isaacman requires international partners to make meaningful contributions with greater urgency.
## ESA’s cargo lander proposal rejected
NASA dismissed European cargo lander proposal for Moon Base, expecting US-built landers to fill the role sooner.
## LISA mission example
Japan provides pressurized lunar rover while Italy builds first Moon Base habitat.
## LISA mission concept
LISA mission concept developed for decades but supercharged in 2015 with gravitational wave detection and LISA Pathfinder launch.
## LISA mission design
LISA uses three spacecraft in triangle formation 1.6 million miles apart to detect low-frequency gravitational waves.
## LISA mission science
LISA will study black hole collisions and galaxy formation while testing Einstein’s theory of relativity.
## NASA’s role in LISA
NASA supplies lasers, telescopes, and charge management devices for LISA mission while Europe builds spacecraft.
## LISA cost comparison
NASA covers one-third of LISA mission costs while getting 100 percent of science data versus $3 billion for US-only mission.
## LISA budget status
ESA approved LISA development in 2024 with 1.75 billion euros budget but NASA’s contribution remains uncommitted.
## Trump administration threat
White House proposed canceling NASA’s LISA participation in 2027 budget request despite Congress restoring funding for 2026.
## LISA project stability
NASA and ESA have met all deliverables for LISA with no missed commitments despite political tensions.
## LISA funding security
Congress funds LISA through 2026 appropriations bill with NASA’s FY ’26 funding ensuring continued commitment.
## LISA scientific potential
LISA could detect gravitational waves from early universe and test Einstein’s theory of relativity.
## Rosalind Franklin mission
NASA books SpaceX launch for Europe’s Rosalind Franklin Mars rover in 2028 despite White House budget threats.
## Key takeaway

NASA and ESA partner on LISA gravitational wave mission with NASA covering one-third of costs while delivering full science data.