2023 is a landmark year for space exploration for the European Space Agency (ESA), marked by major missions such as the "Juice" journey to Jupiter, the launch of the Euclid Space Telescope for dark matter research, and the retirement of ESA's "Aeolus" mission.

ESA’s main milestones in space exploration in 2023 include: the Juice mission to Jupiter, dark matter research with the Euclid telescope, the end of the Aeolus mission, the Zero Debris Charter for space debris and Galileo’s new high-precision service. Key developments include ESA's Hera spacecraft for asteroid impact analysis and advances in Earth observation technology.

The year also saw progress in Earth observation technology, initiatives to deal with space debris, and collaborative efforts to study asteroid impacts. It is worth noting that the first hardware test of the Galileo satellite system’s new high-precision services and its second-generation satellite is an important milestone.

The highlight of 2023 is the highly anticipated launch of Juice, the European Jupiter icy moon probe. In April, the Juice spacecraft flew to Jupiter aboard the penultimate Ariane 5 launch vehicle. After an eight-year journey, "Juice" will begin observing the giant gas planet and its three large ocean-containing moons - Ganymede, Callisto and Ganymede.

The Euclid Space Telescope was launched in July with the aim of uncovering the mysteries of "dark matter" and "dark energy". Euclid's first images were released in November, revealing razor-sharp astronomical images with a richness of detail that telescopes have never seen across such a vast expanse of sky.

After nearly five years in space, ESA's Aeolus wind exploration mission facility has been successfully decommissioned. This pioneering mission is tasked with observing wind patterns from space to improve weather forecasts and climate models. Aeolus' data and technology will play an important role in the accuracy of future weather forecasts. On July 28, it burned up during an assisted reentry, the first assisted reentry by a non-designed mission.

As the space debris problem becomes increasingly serious, ESA is determined to find solutions. ESA has developed a "Fragment Charter" with its commercial and institutional partners, which was launched this year. By signing the Charter, space entities around the world can register their intention to cooperate towards the sustainable use of the Earth's orbital environment.

Earlier in 2023, MTG-I1, the first satellite in the third-generation meteorological satellite mission, sent back the first batch of images. The satellite, launching in 2022, will carry two instruments: the Flexible Combined Imager and the Illumination Imager. Both instruments performed beyond expectations and the images produced by the two instruments were stunning.

Earth observation is key to keeping our planet and humanity as a whole safe. Today, monitoring earthquakes, forest fires or floods from space already helps coordinate rescue responses, but the data can also be used to better understand phenomena such as climate change and support the Intergovernmental Panel on Climate Change's climate reports.

Last year, NASA's Dart mission struck a small moon of the asteroid Didymos, changing its trajectory. ESA will soon launch the Hera spacecraft to collect data after the impact. This year, the Hera spacecraft was integrated and tested at ESA’s ESTEC test center in the Netherlands.

2023 also saw the first hardware tests of the second-generation Galileo satellites, but more importantly, the launch of the Galileo high-precision service in January. The new service delivers centimeter-level accuracy from space, further cementing Galileo's reputation as the world's most accurate satellite navigation system.

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Compiled source: ScitechDaily