NASA has placed fresh bets on 18 futuristic technology concepts, and some of them sound closer to science fiction than conventional aerospace engineering.
The agency’s 2026 NASA Innovative Advanced Concepts program, better known as NIAC, will explore ideas involving lunar cave robots, radiation-heated spacesuits, giant satellite swarms, interstellar propulsion and even techniques for mapping continents on distant planets.
NASA is providing a combined $3.2 million for the newly selected projects. Each team can receive up to $175,000 to spend nine months testing whether its proposal has enough technical substance to deserve further development.
There is an important catch. These are not approved NASA missions. Most will never reach a launchpad.
That is partly the point.
NIAC Gives Strange Ideas Room to Become Serious Technology
NASA created NIAC to investigate concepts that sit outside the normal boundaries of near-term mission planning.
Traditional aerospace projects usually begin with defined requirements, known hardware and a clear operational target. NIAC starts much earlier. Researchers can explore ideas that may take years or even decades to mature, provided they can show both transformative potential and a credible path toward implementation.
The 2026 selection includes researchers from NASA centres, universities, private companies and scientific institutions.
For nine months, the teams will study technical risks, run simulations, refine designs and decide whether their ideas can survive contact with engineering reality. A successful Phase I study may eventually compete for additional NIAC funding, although no award guarantees a future mission.
NASA officials argue that incremental improvements alone will not support the agency’s ambitions around the Moon, Mars and deep-space science. Some problems may need technologies that do not exist yet. NIAC is where a few of those technologies begin.
Lunar Robots Could Hover Through Underground Lava Tubes
Several projects focus on the Moon, where NASA and its partners are working toward a more sustained human presence.
One proposal would develop solid-state propulsion for small autonomous robots exploring underground lunar environments. Instead of relying on wheels, exposed mechanical parts or conventional rotors, the system could allow robotic vehicles to hover through lava tubes and other difficult terrain.
Lunar lava tubes interest scientists because they may provide natural protection from radiation, extreme temperature changes and micrometeorite impacts. Reaching them is another matter. Their entrances can be steep, shadowed and dangerous for ordinary rovers.
Another concept, called LUX, would send power through fibre-optic cables to underground lunar explorers. The design could allow robots to travel into dark areas without carrying large batteries or depending on sunlight.
NASA is also funding work on a variable-conductivity insulation system for small lunar vehicles. Such machines must survive dramatic temperature swings, particularly during the lunar night, which lasts roughly two Earth weeks.
Radioisotope Technology Could Keep Astronauts Warm
One of the stranger proposals concerns astronaut clothing.
The EARENDIL project will examine whether radioisotope heat sources can be integrated into spacesuits for operations in extremely cold environments. Rather than relying entirely on electrical heating systems, the suit would use heat naturally released by radioactive material.
The concept could support astronauts working during the lunar night or exploring icy destinations farther from the Sun.
That does not mean NASA is about to place conventional nuclear material inside its next spacesuit. The research remains at the concept stage, and the team must examine safety, shielding, thermal control and practical integration.
Still, it addresses a real limitation. Keeping astronauts warm for long periods consumes energy, adds equipment and complicates suit design. A compact heat source could reduce some of that burden.
NASA Wants to Send 10,000 Tiny Satellites to Saturn
Saturn’s rings also feature heavily in the 2026 NIAC awards.
A Northwestern University project proposes deploying a swarm of around 10,000 femtosatellites to study Saturn’s rings, upper atmosphere and magnetic environment.
Femtosatellites are tiny spacecraft that can be much smaller and lighter than standard CubeSats. A large coordinated swarm could collect measurements across a wide area instead of relying on one expensive spacecraft following a fixed route.
Keeping thousands of small satellites organised would be extremely difficult. The researchers will need to investigate propulsion, communication, navigation and collision avoidance, among other problems.
A separate proposal called PRAXIS would develop an autonomous system capable of collecting physical samples from planetary rings. The technology could eventually target the ring systems surrounding Saturn, Uranus or Neptune.
Scientists have studied rings remotely and flown spacecraft near them, but collecting actual material would open a different kind of research opportunity.
Venus Hardware Must Survive an Unforgiving Planet
Venus remains one of the most difficult places in the solar system to explore.
Its surface combines crushing atmospheric pressure with temperatures hot enough to damage conventional electronics. Landers have survived there, but not for long.
The CANVAS concept, led by NASA’s Jet Propulsion Laboratory, will investigate an adaptable architecture designed to improve the mobility and survivability of Venus exploration systems.
NASA has not described CANVAS as a ready-made rover. It is an early investigation into how future instruments or vehicles might continue operating under conditions that rapidly destroy ordinary spacecraft hardware.
Longer survival times could give researchers more opportunities to study Venusian geology, atmospheric chemistry and the planet’s unusual climate history.
Solar Sails and Nuclear Power Could Push Spacecraft Farther
Some of the selected projects are looking well beyond nearby planets.
Researchers at the University of California, Los Angeles, will study coilable stacked solar sails designed for missions requiring exceptionally large changes in velocity. Solar sails use pressure from sunlight for propulsion, removing the need to carry traditional chemical fuel for every manoeuvre.
Another team will explore plasmon-enhanced radioisotope thermophotovoltaic power generation for interstellar spacecraft.
The name is dense, but the goal is straightforward: create a compact and efficient way of converting radioisotope heat into electricity. Spacecraft travelling far beyond the reach of strong sunlight need power systems that can operate reliably for years.
Interstellar flight remains far outside current mission capability. Better long-duration power generation, however, could benefit more realistic missions to the outer solar system as well.
Researchers Could Map Continents on Alien Worlds
Not all 18 projects are about spacecraft movement or survival.
One concept will examine a new imaging approach for resolving surface features on exoplanets. Rather than merely detecting a distant planet or measuring its atmosphere, the technology could eventually help scientists reconstruct broad features resembling continents.
The proposal uses optical very-long-baseline interferometry, a method that combines observations from separated instruments to produce the resolving power of a much larger telescope.
Another award will explore observing photon rings around black holes using intensity correlation techniques. Photon rings form when light travels through the intensely warped space surrounding a black hole.
A separate concept proposes using independent spacecraft for precision astrometry and low-frequency gravitational-wave detection. Such measurements could help researchers investigate how galaxies formed and evolved.
These are ambitious targets. Even limited progress, though, could create new tools for astronomy closer to home.
One Project Looks at Dimming Sunlight With Space Dust
Perhaps the most controversial concept in the group is DimSun.
Led by a researcher at NASA’s Jet Propulsion Laboratory, the project will study whether a controllable cloud of dust in space could reduce the amount of solar energy reaching Earth.
The idea falls within solar radiation modification, a category of climate intervention research that remains scientifically uncertain and politically sensitive.
NASA’s award does not represent approval to deploy such a system. Phase I funding only supports an initial technical study. The project will need to examine whether a dust cloud could be positioned, controlled and maintained, along with the effects and risks such a system might create.
Its inclusion shows how widely NIAC is willing to cast its net. The programme is not restricted to rockets and planetary rovers. It also considers space-based technologies that could affect life on Earth.
Most NIAC Concepts Will Stay on Paper
The 2026 awards contain plenty of headline-friendly ideas, but NIAC is built around uncertainty.
A nine-month study may reveal that a concept requires impossible materials, unrealistic energy levels or control systems that cannot be built. That would not necessarily make the work useless. Identifying a dead end early can prevent far more expensive mistakes later.
Other projects may produce components, software or research methods that find a place in missions very different from the original proposal.
NASA is not promising a swarm over Saturn or heated lunar spacesuits next year. It is buying researchers enough time to work out whether those ideas deserve a second look.
That is a modest investment by space-programme standards. It is also where some of the agency’s most unconventional technology work begins.