Top10Grid Ranks The 5 Top 10 Space Missions and Launches Defining 2026

Key Statistics

Top 5 Rankings

1. 1

   Artemis II Lunar Flyby

   The Artemis II mission, which launched on April 1, 2026, marked the first time human beings had travelled to the Moon since Apollo 17 in December 1972 — a gap of 54 years. The four-person crew consisted of Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialists Christina Koch and Jeremy Hansen, making Hansen the first Canadian astronaut to travel beyond low Earth orbit. The Space Launch System (SLS) Block 1 rocket, generating 8.8 million pounds of thrust at liftoff, propelled the Orion spacecraft on a free-return trajectory around the Moon before the crew splashed down on April 10, 2026, completing a 10-day mission. The mission validated the integrated SLS and Orion stack under genuine crewed conditions for the first time. Orion reached distances exceeding 370,000 kilometres from Earth — farther than any crewed spacecraft since Apollo — and the crew experienced speeds approaching 39,000 kilometres per hour during trans-lunar injection. The life-support systems, communication arrays, and re-entry heat shield all performed within design parameters, clearing the path for Artemis III, which will attempt the first crewed lunar surface landing since 1972. Beyond the engineering validation, Artemis II carried 18 experiments studying crew physiology, radiation exposure, and the behaviour of materials in deep space. The mission also tested the Lunar Communications Relay Unit, a high-bandwidth data link designed to support surface operations in subsequent missions. Victor Glover became the first African American to travel beyond Earth orbit, a milestone with broad public significance. The mission cost approximately $4.1 billion, drawing criticism from some quarters, but its successful completion unlocked funding authorisation for Artemis III through V, representing the single most consequential gate in NASA's 21st-century exploration strategy.

2. 2

   SpaceX Starship V3 Testing Campaign (Flights 12 and 13)

   SpaceX's 2026 Starship testing campaign centres on the V3 variant — a third-generation redesign incorporating upgraded Raptor 3 engines, enhanced avionics, and a refined reusable heat shield. Flight 12, which launched on May 22, 2026, was the first suborbital test of Starship V3. The Super Heavy booster executed a controlled splashdown in the Gulf of Mexico, while the Starship upper stage completed its trajectory and splashed down in the Indian Ocean, demonstrating improved guidance precision compared to earlier flights. Flight 13, tentatively scheduled for late June 2026, is targeting an orbital attempt contingent on Flight 12 data review. The scale of SpaceX's 2026 launch ambition is without precedent in the history of rocketry. The company is targeting more than 120 orbital-class missions across its full fleet in 2026 — approximately one launch every three days — with Falcon 9 forming the backbone and Starship intended to absorb the heaviest payload requirements. Starship stands 122 metres tall, the largest rocket ever constructed, and generates 16.7 million pounds of thrust from 33 Raptor engines in its first stage. For NASA's Artemis programme, Starship's trajectory matters enormously. Starship is the designated Human Landing System (HLS) for Artemis III, meaning it must demonstrate orbital propellant transfer — a first in spaceflight history — before crew can land on the Moon. The 2026 V3 testing campaign is building the technical and regulatory confidence base required to authorise that mission. Beyond Artemis, SpaceX has announced commercial Starship lunar cargo missions targeting 2027-2028, and the company's long-term Mars architecture depends entirely on V3-or-later hardware meeting its reusability and mass-fraction targets.

3. 3

   JAXA Martian Moons eXploration (MMX) Sample Return

   The Martian Moons eXploration mission, developed by the Japan Aerospace Exploration Agency with contributions from NASA, CNES, and DLR, is scheduled to launch during the November-December 2026 Mars launch window. MMX will travel to Phobos, the larger of Mars's two moons, collect at least 10 grams of surface material, and return those samples to Earth in 2031 — making it the first-ever sample return from the Mars system and one of the most scientifically consequential missions in planetary science history. Phobos is an enigmatic body. Its origin remains fiercely debated: it may be a captured carbonaceous asteroid, or it may be debris ejected from Mars's surface by a giant impact billions of years ago. Distinguishing between these hypotheses has profound implications for understanding Mars's early history, the delivery of water and organics to the inner Solar System, and the feasibility of using Phobos as a waystation for human Mars missions. MMX's scientific payload includes the MEGANE gamma-ray and neutron spectrometer (NASA), the OROCHI wide-angle camera, the TENGOO telescopic camera, the LIDAR altimeter, and an internationally contributed seismometer package. MMX will spend approximately three years in the Mars system before departing for Earth. During that time it will also conduct a brief reconnaissance of Deimos, Mars's smaller moon. The spacecraft has a launch mass of approximately 4,000 kilograms and uses a novel sample collection system developed from lessons learned in JAXA's successful Hayabusa2 mission, which returned asteroid samples in 2020. The mission's 5-year round trip makes it the longest-duration sample return mission ever attempted, and its success would firmly establish Japan as the world's premier practitioner of robotic sample return science.

4. 4

   ESA Hera Asteroid Impact Investigation

   ESA's Hera spacecraft, launched in October 2024, is scheduled to arrive at the Didymos-Dimorphos binary asteroid system in November 2026 — approximately one month earlier than originally planned due to trajectory optimisation. Hera is the European follow-up to NASA's DART mission, which deliberately impacted Dimorphos on September 26, 2022, altering its orbital period around Didymos by 33 minutes. While DART proved that kinetic impact deflection works, it left critical questions unanswered: How large is the crater? How much mass was ejected? What is Dimorphos's internal structure? Hera will answer all of these. The spacecraft has a mass of 1,128 kilograms and carries a suite of advanced instruments including a wide-angle camera, a thermal infrared imager, an asteroid framing camera, and the PALT lidar altimeter. Crucially, Hera also carries two CubeSat companions deployed once in the Didymos system: Milani, which will conduct a detailed mineral survey of both asteroids' surfaces, and Juventas, which will perform the first-ever radar sounding of an asteroid's interior — a technique capable of mapping internal voids and structural weaknesses. The scientific significance of Hera's work extends well beyond satisfying curiosity. Planetary defence requires not just the ability to deflect an asteroid but the ability to predict the deflection outcome with enough confidence to avoid an overcorrection. Hera's detailed characterisation of the DART crater, the ejecta plume structure, and Dimorphos's bulk density will calibrate the models that planetary defence agencies worldwide will use for any future threat response. The European Space Agency invested approximately 363 million euros in Hera, reflecting the strategic value of planetary defence capability for Europe and the broader international community.

5. 5

   Blue Origin Blue Moon Mark 1 Lunar Lander

   Blue Origin's Blue Moon Mark 1 lander — built in the Endurance configuration — is targeting a launch no earlier than September 2026 as part of NASA's Commercial Lunar Payload Services (CLPS) programme. The lander is designed to deliver up to 6,600 pounds (3,000 kilograms) of cargo to the lunar surface, making it the highest-capacity commercial lander attempted to date. Its primary mission will carry a slate of NASA scientific instruments and technology demonstration payloads selected to characterise the lunar environment ahead of crewed Artemis surface missions. Blue Moon Mark 1 is the result of nearly a decade of development dating to Jeff Bezos's public introduction of the lander concept in May 2019. The vehicle uses liquid hydrogen and liquid oxygen propulsion — the same propellant combination as NASA's Space Shuttle main engines — which provides the highest specific impulse of any chemical propellant pair and allows for efficient trans-lunar injection and powered descent. The precision landing system targets a circular touchdown zone of approximately 100 metres, meeting the requirements for safe surface cargo delivery without pre-surveyed landing pads. Blue Moon's significance extends well beyond its first flight. The Mark 1 variant is explicitly the pathfinder for Blue Moon Mark 2, the crewed variant under development as Blue Origin's alternative Human Landing System for Artemis missions beyond Artemis III. If Mark 1 successfully demonstrates precision landing and payload deployment in 2026, Blue Origin gains the flight heritage that underpins its HLS contract ambitions. The CLPS programme, which funds both Blue Origin and competitors including Astrobotic and Intuitive Machines, represents NASA's strategic bet that commercial competition will drive lunar logistics costs down by an order of magnitude compared to government-operated systems.

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