What is the MBR Explorer mission?

The MBR Explorer, part of the Emirates Mission to the Asteroid Belt, is UAE's spacecraft set to launch in 2028 to study seven main belt asteroids, including a landing on 269 Justitia.

When is the MBR Explorer launch date?

Scheduled for March 2028 aboard Japan's H3 rocket, the mission aligns with a precise three-week window for optimal trajectory to the asteroid belt.

Which asteroids will MBR Explorer visit?

Six flybys of primitive asteroids like 98943 and 128036, culminating in orbit and landing on water-rich 269 Justitia in 2034 for in-depth analysis.

What recent tests have been successful?

Critical Design Review (2025), Ground Segment CDR (Feb 2026), and ongoing assembly/integration tests in the US confirm hardware readiness amid 2026 progress.

What instruments does MBR Explorer carry?

Cameras, spectrometers, laser altimeter, and gamma-ray detectors for imaging, composition, and thermal mapping during high-speed flybys and landing.

Who are the key partners in the mission?

UAE Space Agency leads with TII for spacecraft, Mitsubishi Heavy Industries for launch, and NASA/University of Colorado for science leadership.

What are the scientific objectives?

Probe water and organic origins on asteroids, understand solar system formation, and assess resource potential through comparative studies.

How does this fit UAE's space program?

Follows Hope Mars (extended to 2028) and Rashid lunar rovers, boosting AED 22B space economy and training 200+ Emirati specialists.

What challenges does the mission face?

Radiation, communication delays, precise navigation; addressed via redundant systems and simulations in current testing phase.

What is the mission's journey length?

13 years, covering 5 billion km with gravity assists from Earth, Venus, Mars for efficient travel to the belt.

Will there be a sample return?

No direct return planned; focus on remote sensing and potential surface analysis, contributing data to global asteroid studies.

UAE MBR Explorer Mission 2028 On Track

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Recent Breakthroughs Propel UAE's MBR Explorer Mission Forward

The United Arab Emirates is solidifying its position as a global space powerhouse with the MBR Explorer mission, officially known as the Emirates Mission to the Asteroid Belt. Named after His Highness Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and Ruler of Dubai, this groundbreaking endeavor is firmly on track for its March 2028 launch. Recent announcements confirm that critical tests are not only underway but succeeding, marking a pivotal phase in the spacecraft's development.

Following the successful completion of the Critical Design Review in 2025 and the Ground Segment Critical Design Review earlier this year, the mission has transitioned into assembly, integration, and rigorous testing. UAE Space Agency Chairman Salem Butti Al Marri highlighted the team's progress during a recent visit to the US by agency head Fugro Al Falasi, where Emirati engineers are collaborating on complex subsystems. These tests ensure the spacecraft can withstand the harsh conditions of deep space, including extreme temperatures, radiation, and high-speed encounters.

The mission represents a quantum leap for UAE space capabilities, building on the success of the Hope Probe to Mars. With a journey spanning nearly 5 billion kilometers, the MBR Explorer will redefine regional contributions to planetary science.

Understanding the Ambitious Trajectory and Targets

The MBR Explorer's path is a marvel of orbital mechanics. Launching aboard a Japanese H3 rocket from Mitsubishi Heavy Industries, the spacecraft will harness gravity assists from Earth, Venus, and Mars to slingshot into the main asteroid belt between Mars and Jupiter. This efficient trajectory minimizes fuel needs while maximizing scientific returns over a 13-year odyssey.

Seven asteroids form the core targets: high-speed flybys of six primitive bodies, followed by a rendezvous and landing on the seventh, 269 Justitia. Justitia, a water- and organic-rich carbonaceous chondrite approximately 35 kilometers in diameter, offers clues to the solar system's watery origins. Earlier flybys include asteroids like 98943 (1998 SF36), 128036 Ransomsdorsey, and others selected for their compositional diversity—ranging from volatile-rich C-types to metallic M-types. Flybys will occur at distances as close as 150 kilometers and speeds up to 33,000 kilometers per hour, demanding precision navigation.

This multi-target approach is unprecedented for a first-time deep-space mission from the region, showcasing UAE's mastery of interplanetary travel.

Diagram of MBR Explorer mission trajectory through the asteroid belt

Cutting-Edge Spacecraft Design and Instruments

At the heart of the mission is the MBR Explorer spacecraft, a compact yet sophisticated probe weighing around 800 kilograms. Developed primarily by the Technology Innovation Institute with 50 percent Emirati content, it features solar-electric propulsion for efficient cruising and chemical thrusters for maneuvers. Key systems include redundant avionics, high-gain antennas for Earth communication, and radiation-hardened components to survive years in space.

A suite of synergistic instruments will capture data: wide- and narrow-field cameras for imaging, multispectral imagers for mineral mapping, infrared spectrometers for thermal properties, a laser altimeter for topography, and a gamma-ray/neutron spectrometer for elemental composition. During the Justitia landing, a small rover or surface package may deploy to analyze regolith up close, probing for water ice and organics.

Ground control in the UAE will manage operations via the Deep Space Network, ensuring real-time data relay during critical phases. These technologies position the UAE at the forefront of autonomous space robotics.

Scientific Goals: Unlocking Solar System Secrets

The primary objective is to investigate the origins and evolution of water-rich asteroids, shedding light on how volatiles delivered Earth's oceans. By studying primitive asteroids untouched since the solar system's formation 4.6 billion years ago, scientists will analyze space weathering, impact histories, and differentiation processes.

Key questions include: How do organics form in space? What role did asteroids play in life's building blocks? Data from multiple targets will create a comparative atlas, revealing belt-wide trends. Potential resource utilization insights could inform future mining ventures, though the focus remains pure science.

This mission complements global efforts like NASA's Psyche and OSIRIS-REx, contributing UAE data to international databases for collaborative analysis.

For more details on the mission's scientific framework, visit the official UAE Space Agency EMA page.

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International Collaborations Fueling Success

Japan: Mitsubishi Heavy Industries provides the H3 launch vehicle, ensuring reliable deployment.
USA: NASA's Laboratory for Atmospheric and Space Physics at University of Colorado Boulder leads the science team, with contributions from JPL on navigation.
UAE Private Sector: TII handles spacecraft build, fostering local industry growth.

These partnerships exemplify UAE's diplomatic space strategy, blending national talent with global expertise. Emirati engineers gain hands-on experience, accelerating knowledge transfer.

UAE's Stellar Space Legacy Paves the Way

The MBR Explorer builds on UAE triumphs: the 2021 Hope Mars orbiter, now extended to 2028; Rashid Rover 1's lunar landing; and MBZ-SAT Earth observation. The UAE Space Agency, established 2014, has launched over 10 missions, growing the space economy to AED 22 billion annually.

With 200+ Emiratis trained abroad and returning as experts, the nation invests AED billions in infrastructure like the Mohammed Bin Rashid Space Centre. This mission underscores Vision 2031's focus on innovation-driven diversification.

Economic Ripple Effects and National Inspiration

Beyond science, the mission stimulates jobs in aerospace, from manufacturing to data analysis. Private firms like Yahsat and Edge Group are scaling up, attracting investment. Public engagement—via apps, exhibits at Dubai Airshow—ignites youth passion for STEM.

Surveys show 80 percent of UAE students aspire to space careers, boosted by such flagships. The mission elevates UAE's soft power, hosting international conferences and sharing data openly.

Navigating Challenges on the Road to Launch

Deep-space missions face hurdles: radiation hardening, autonomous operations during communication blackouts (up to 45 minutes), and precise targeting amid gravitational perturbations. Recent tests validate propulsion, thermal systems, and software simulations.

Budget overruns are mitigated by phased milestones; geopolitical stability ensures supply chains. UAE's agile management keeps timelines intact.

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Looking Ahead: Legacy of the MBR Explorer

Post-2034 landing, data influx will fuel papers, PhDs, and missions. Justitia samples (if returned) could revolutionize astrobiology. UAE eyes follow-ons: Venus probes, Jupiter Trojans.

This mission cements UAE as a space leader, inspiring Arab youth and contributing to humanity's cosmic understanding. As Al Marri states, "It's not just exploration—it's inspiration."