Loading…
NASA announced on 6 August 2026 that it had successfully tested a lightweight, foldable ground-penetrating radar antenna for its SkyFall Mars helicopters.
The antenna survived more than 200 simulated landings with no loss of signal - over twice the prime-mission requirement - in tests at NASA's Jet Propulsion Laboratory.
It is a fabric antenna sheathed in polyester and layers of Vectran, the same material used in the landing airbags of the Spirit and Opportunity rovers.
SkyFall is a payload of three Ingenuity-derived helicopters that will be carried to Mars by SR-1 Freedom, the first fission-powered interplanetary spacecraft, launching in late 2028.
The radar is designed to detect subsurface ice at depths of roughly 0.5 to 3.0 metres and to scout landing sites for future crewed Mars missions.
In nuclear electric propulsion a fission reactor is used only to generate ELECTRICITY, which then powers electric (ion) thrusters that accelerate a propellant such as xenon. This is different from nuclear thermal propulsion, where the reactor's heat is used directly to expand a propellant for thrust. SR-1 Freedom is designed around a reactor of roughly 20 kilowatts electric using high-assay low-enriched uranium (HALEU) fuel, with heat pipes for thermal transfer and a boron carbide radiation shield. The advantage over solar power is distance-independence: sunlight weakens as the inverse square of distance from the Sun, so solar arrays become progressively less useful in the outer Solar System, while a reactor's output does not depend on sunlight at all.
Simple Analogy: Nuclear thermal propulsion is a stove heating the kettle directly; nuclear electric propulsion is a generator running an electric fan - the same fuel, but the energy takes a detour through electricity before it becomes motion.
Ingenuity makes the first powered, controlled flight by an aircraft on another planet.
Ingenuity completes its 72nd and final flight; a rotor blade is damaged on landing.
NASA announces the end of the Ingenuity mission after nearly three years.
The SkyFall radar antenna is put through a landing-stress campaign at JPL's In-Situ Instrument Laboratory.
NASA announces that the antenna survived over 200 landings with no signal loss.
SR-1 Freedom is scheduled to launch, carrying the three SkyFall helicopters to Mars.
The 2021 technology demonstration from which the SkyFall helicopters are derived; first powered flight on another planet.
Their landing airbags used Vectran, the same material now sheathing the SkyFall radar antenna.
Partners NASA on the reactor technology for SR-1 Freedom.
ISRO's Mangalyaan (Mars Orbiter Mission, 2013) studied Mars from orbit; SkyFall represents the atmospheric-flight approach to the same planet.
GS Paper III > Science and Technology - Space
General Awareness > Space and Technology
General Awareness > Science
General Awareness > Science and Technology
A NASA payload of three Ingenuity-derived helicopters to be flown on Mars, managed by JPL with AeroVironment.
Space Reactor-1 Freedom, the first fission-powered interplanetary spacecraft, using nuclear electric propulsion; launch scheduled for late 2028.
Using a fission reactor to generate electricity that powers ion thrusters, rather than using reactor heat directly for thrust.
High-assay low-enriched uranium, the reactor fuel proposed for SR-1 Freedom.
A radar that images structures below a surface; on SkyFall it is designed to detect ice at 0.5 to 3.0 metres depth.
A high-strength flexible fibre used in the Spirit and Opportunity landing airbags and now in the SkyFall antenna.