The European Space Agency (ESA) has committed to extending 13 active science missions through the late 2030s while greenlighting the “fast-class” Arrakihs telescope. Meeting in Tenerife on 10–11 June, the Science Programme Committee confirmed that flagship projects including the James Webb Space Telescope, Hubble, and Solar Orbiter will receive continued funding based on their operational health and capacity to deliver new data.
Why is ESA extending these 13 missions?
ESA extends missions when spacecraft prove capable of returning high-value scientific data beyond their original mission design life. According to the agency, the decision affects all missions currently scheduled to conclude before the end of 2026. This extension strategy maximizes the return on investment for member states, as operational satellites can often perform secondary objectives or provide long-term monitoring that new launches cannot replicate.
The list of extended missions includes:
- Solar observatories: SOHO, Solar Orbiter, and Hinode.
- Deep space and planetary: BepiColombo, Mars Express, and Proba-3.
- Astrophysics and cosmology: Webb, Hubble, XMM-Newton, XRISM, Einstein Probe, and Cheops.
- Atmospheric science: IRIS.
The Solar Orbiter, launched in 2020, is a primary beneficiary of this extension. By operating longer, the probe will capture higher-latitude observations of the Sun, a perspective crucial for understanding solar cycles that short-term missions often miss.
What is the Arrakihs “fast-class” mission?
Arrakihs is the second mission in ESA’s “fast-class” category, designed for rapid development and deployment. According to ESA, the spacecraft is tasked with measuring faint light from the haloes of stars and gas surrounding galaxies. By studying these structures, researchers aim to address fundamental questions regarding cosmic history and galaxy evolution.
The mission is currently slated for a 2030 launch. Spain is expected to take a leading role in the spacecraft’s development, highlighting the agency’s strategy of distributing technical responsibilities across its 23 member states.
How does the Plasma Observatory fit into future plans?
The Plasma Observatory has been proposed as the next medium-class mission, with a final decision expected in November 2026. The concept features a constellation of seven spacecraft designed to observe the interaction between solar plasma and Earth’s magnetosphere.
Unlike single-satellite missions, this constellation approach allows for simultaneous multi-point measurements. This enables scientists to track how energy is distributed across different space and time scales, providing a more granular look at space weather than previous missions like the Cluster mission were able to achieve.
Keep an eye on the November 2026 Science Programme Committee meeting. That session will transition the Plasma Observatory from a “proposed” status to a fully funded, formal mission, setting the stage for the next decade of magnetospheric research.
Frequently Asked Questions
What determines if an ESA mission gets extended?
Extensions are based on the spacecraft’s technical health and its potential to return new scientific findings after its primary mission phase, which typically lasts up to five years.
When will the Arrakihs mission launch?
ESA expects the Arrakihs mission to launch by the end of 2030.
What is the goal of the proposed Plasma Observatory?
The mission aims to study the interaction between solar plasma and Earth’s magnetosphere by using seven synchronized spacecraft to observe energy transfer in real-time.
Stay informed on the latest developments in space exploration by subscribing to our newsletter or exploring our archive of space policy updates. Have questions about these missions? Share your thoughts in the comments below.
