CALLISTO SURFACE / ROBOTIC ICE SCIENCE

CA.R.I.E.

A solar-powered lander and rover mission designed to investigate Callisto's ancient surface, extract shallow ice samples and demonstrate more capable autonomous mobility in the outer Solar System.

Callisto Rover Ice Extractor

A rover that can think locally and report through a dependable lander.

CA.R.I.E. arrives at Callisto as an integrated cruise stage, lander and rover. After landing, the rover deploys down a ramp and uses the lander as its primary communications relay to Earth. Both vehicles carry science instruments, but the rover concentrates on mobility, ice extraction and close surface measurements.

Preliminary mission architecture

CURRENT BASELINE

Mission at a glance.

Destination: Callisto
Surface elements: Science lander and six-wheel rover
Primary power: Low-intensity solar arrays and batteries
Communications: Rover-to-lander relay; lander-to-Earth high-gain link
Mobility: A.R.S. autonomous navigation
Maximum speed objective: Up to 1 m/s; routine science driving slower
Primary science: Shallow ice extraction and surface composition
Status: Preliminary mission architecture

MISSION PROFILE

From departure to science operations.

Every value remains subject to trajectory analysis, subsystem sizing and independent review.

Enter the Callisto system

The carrier establishes the required Jupiter-system geometry, releases the landing system and targets a surveyed site.

Land and commission

The lander deploys its solar arrays and high-gain antenna, checks the local environment and establishes the Earth link.

Release the rover

CA.R.I.E. descends a ramp, confirms its local link and begins a deliberately conservative checkout close to the lander.

Traverse autonomously

The Autonomous Roving System combines stereo vision, terrain classification, slip estimation and route planning. The 1 m/s figure is a mechanical maximum, not the normal science speed.

Extract and analyse

A shallow corer acquires ice-bearing material for imaging, spectroscopy and compositional measurements while the lander continues its own static science.

Protect the data

If the rover loses the lander link it stops, turns around and retraces its path. Timed high-power recovery beacons and a final data transmission protect the science return.

SPACECRAFT ARCHITECTURE

The systems that make the mission credible.

Architecture is presented as a working engineering baseline, not flight-qualified hardware.

A.R.S.

A ground-trained and extensively verified autonomy stack. Flight software remains bounded by deterministic safety rules and commandable limits.

Loss-of-link response

Stop, rotate 180 degrees and retrace the accepted route. After 18 hours, use reserve energy for a high-power location beacon.

Terminal response

If no link is recovered after a further 18 hours, transmit the remaining stored data and enter a terminal safe state.

Solar power

Sunlight at Jupiter is roughly 25 times weaker than at Earth, so both vehicles need large low-intensity arrays and robust batteries.

Radiation

Callisto avoids much of Jupiter's most intense inner radiation environment, but electronics, cameras and arrays still require shielding and margin.

Science

Ice coring, visible and infrared imaging, geochemistry, ground-penetrating radar, environmental monitoring and lander radio science.

SCIENTIFIC PARTNERSHIP MODEL

Partners reserve capability. Starshot retains and operates the spacecraft.

Revenue is tied to real engineering work and delivered mission capacity: payload accommodation, integration, operations, communications and data. A mission proceeds only after anchor funding and booked capacity pass a defined commitment threshold.

Rover payloads

Reserved instrument positions with defined power, data, field-of-view and contact requirements.

Lander payloads

Static instruments can buy a stable platform, continuous power allocation and direct access to the Earth downlink.

Traverse campaigns

A partner can reserve a bounded route or sampling campaign when it fits the landing site's safety envelope.

Data and operations

Integration, commanding, relay, archive delivery and optional extended operations are contracted as separate services.

ReservationPaid capacity hold after competitive selection

IntegrationStaged fees through interface review, qualification and delivery

Flight serviceLaunch, operations, downlink and data-delivery contract

ExtensionRenewable operations or relay service after the prime mission

Profitability is not assumed from gross bookings. Each mission must recover allocated development, launch, integration, operations, insurance, contingency and capital costs before an operating margin is claimed.

ENGINEERING PRECEDENT

Built from demonstrated ideas, extended carefully.

ESA: JUICE spacecraft and solar design ESA: JUICE spacecraft specifications

THE STANDARD

CA.R.I.E. combines a conservative relay architecture with faster local autonomy, so more of a short surface lifetime is spent doing science.

All performance figures on this page are preliminary design targets. They will change as trajectory, mass, power, thermal, communications and reliability models mature.

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