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Artemis II will send astronauts around the Moon for the first time since 1972.
New telescopes will survey billions of galaxies and search for thousands of exoplanets.
Asteroid and Mercury missions could reveal how the Solar System formed and evolved.
Deep-space exploration has reached a historic turning point in 2026 as multi-billion-dollar public and private investments transition from planning to execution. Humanity's return to the lunar vicinity accelerates with NASA's crewed Artemis II flyby, alongside targeted robotic deployments like China's Chang'e 7 south pole probe and Japan’s ambitious Martian Moons eXploration (MMX) sampling mission.
Simultaneously, the arrival of the European Space Agency’s Hera spacecraft at the binary asteroid Didymos promises critical insights into planetary defense, cementing 2026 as a pivotal year for understanding cosmic origin and the potential for extraterrestrial habitability.
NASA will conduct its Artemis II mission. This will be the first crewed mission beyond Earth orbit since Apollo 17 in 1972. Four astronauts will fly on the Orion spacecraft, which will be launched by the powerful Space Launch System (SLS) rocket. The duration of this mission will be approximately ten days.
This mission has a larger significance than just a trip around the Moon. Scientists and engineers need to ensure that Orion can protect the crew during long-duration missions beyond Earth orbit.
Different technologies will be tested in this flight, including navigation, communication and life-support systems, as well as various technologies of deep-space radiation protection, which will make it possible to create new Artemis III missions that will take astronauts to the Moon for the first time.
This mission also signifies international cooperation. Jeremy Hansen, from Canada, will become the first Canadian astronaut to travel beyond Earth orbit. In general, Artemis II is a new step towards long-distance lunar missions and the first missions to Mars.
NASA plans to launch the Nancy Grace Roman Space Telescope in 2026. Many experts describe it as one of the most powerful observatories ever built.
Roman carries a 300-megapixel Wide Field Instrument that can capture images covering nearly 100 times Hubble's field of view while maintaining similar image quality. This capability will allow scientists to survey huge sections of the sky much faster than previous telescopes.
The telescope will search for answers to some of astronomy's biggest mysteries. One major goal is to study dark energy, the unknown force that causes the universe to expand at an increasing rate. Roman will also examine dark matter by observing more than 100,000 gravitational lensing events, where massive objects bend light from distant galaxies. These observations could provide valuable clues about the invisible matter that makes up most of the universe.
Roman will also search for thousands of exoplanets through gravitational microlensing. Its advanced coronagraph instrument will even capture direct images of some nearby planets and examine their atmospheres for important chemical signatures.
The Vera C. Rubin Observatory will start complete scientific activities in 2026 following the amazing success of its first images. The observatory is home to the biggest digital telescope capable of capturing pictures in 3,200-megapixel resolution.
The telescope will scan the southern sky during the next ten years, allowing scientists to notice different events occurring in the universe in detail.
Rubin will collect almost 20 terabytes of scientific data on a daily basis. It is anticipated that millions of asteroids will be discovered, including many asteroids capable of potentially threatening Earth.
Thousands of supernova explosions will be registered each night and billions of galaxies are expected to be observed. The vast data collected will help the scientists figure out the changes occurring in the universe over time.
China plans to launch the Xuntian Space Telescope in 2026 as one of its largest scientific space projects. Although often compared to the Hubble Space Telescope, Xuntian offers a much wider view of space.
Its field of view is more than 300 times larger than Hubble's while still delivering high-quality images. This design allows the telescope to examine vast regions of the universe much more efficiently.
The telescope will work alongside China's Tiangong Space Station. Unlike most space telescopes, Xuntian can return close to the station for maintenance and upgrades when needed. Scientists expect the observatory to study galaxy formation, dark matter, dark energy and the large-scale structure of the universe.
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Asteroids preserve material from the early Solar System, which makes them valuable targets for research. Several important missions will focus on these ancient objects during 2026.
China's Tianwen-2 mission aims to reach the near-Earth asteroid Kamoʻoalewa, collect rock samples and return them safely to Earth. After sample delivery, the spacecraft will continue its journey toward a comet for further scientific research.
At the same time, the European Space Agency's Hera mission will arrive at the Didymos asteroid system. Hera will carefully examine the results of NASA's DART mission, which successfully changed the orbit of the small asteroid Dimorphos during the world's first planetary defense test. Scientists hope these observations will improve future methods to protect Earth from dangerous asteroids.
After several years of complex travel through the Solar System, the joint European Space Agency and Japan Aerospace Exploration Agency mission, BepiColombo, is expected to enter orbit around Mercury in late 2026.
Mercury remains one of the least explored planets despite its close distance to the Sun. BepiColombo will examine the planet's unusually large iron core, magnetic field, surface features and thin atmosphere.
Scientists hope the mission will explain how Mercury formed and why its internal structure differs so greatly from other rocky planets. The findings may also improve understanding of how planets develop near their parent stars.
Throughout 2026, the Moon will remain one of the primary destinations for space exploration. Multiple countries are preparing for vital space missions to the south pole of the Moon. In fact, some craters on that side of the Moon are perpetually dark, providing the perfect conditions for huge reserves of ice to survive.
China’s Chang’e 7 mission will consist of an orbiter, a landing craft, a rover and a small flying device that can help explore the inaccessible craters. The purpose of the mission is to search for ice and study the south pole region.
Commercial missions are expected to carry scientific equipment and technology demonstrations for future Artemis missions. Water ice present on the south pole could ensure drinking water, oxygen for astronauts and hydrogen that can be used in the rocket.
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The missions set for 2026 encompass much more than single launches. Each project focuses on different scientific objectives, but together they will provide a more complete understanding of the universe. These missions will enable the study of both the earliest galaxies and nearby celestial bodies. In addition, human exploration will continuously move toward a steady presence on the Moon and advanced telescopes will collect more scientific data than ever before.
The findings achieved in 2026 may determine the future of numerous fields such as astronomy, planetary science and human space exploration for many years. Many specialists consider this year to be one of the most impressive periods in the history of space research since the beginning of the modern space epoch.
1. Why is 2026 considered a major year for space science?
Several landmark missions, including Artemis II, the Roman Space Telescope, Rubin Observatory, and BepiColombo, are expected to begin or reach major milestones.
2. What is the main goal of Artemis II?
The mission will test NASA's Orion spacecraft and Space Launch System with astronauts before future lunar landing missions.
3. How will the Roman Space Telescope help scientists?
It will study dark energy, dark matter, and distant galaxies while searching for thousands of exoplanets using advanced observation techniques.
4. What makes the Rubin Observatory unique?
It uses the world's largest digital astronomical camera with 3,200 megapixels and will collect about 20 terabytes of sky data every day.
5. Why are asteroid missions important?
Asteroids contain ancient material from the early Solar System and help scientists understand planetary formation while improving future planetary defense strategies.
