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Europe will commission two rocket launches from Elon Musk’s SpaceX after the Ukraine conflict barred access to Russia’s Soyuz, the European Space Agency (ESA) confirmed on Thursday.

The launches include the Euclid space telescope and the Hera probe, a follow-up mission to NASA‘s DART spacecraft which last month succeeded in altering the path of a moonlet in the first test of a future planetary defence system. 

“The member states have decided that Euclid and Hera are proposed to be launched on Falcon 9,” ESA Director General Josef Aschbacher told reporters after a meeting of the 22-nation agency’s ministerial council.

The launches will take place in 2023 and 2024 respectively.

Reuters reported in August that ESA had begun preliminary technical discussions with SpaceX that could lead tothe temporary use of its launchers after the Ukraine conflictblocked Western access to Russia’s Soyuz rockets.

Industry sources had said up to two launches could be affected by the switch from Soyuz to SpaceX.

A third payload which had been due to ride on Soyuz — the Earth Cloud Aerosol and Radiation Explorer, or EarthCARE — will now be launched on Europe’s Vega C instead, Aschbacher said.

Built by Airbus on behalf of the European and Japanese space agencies, the EarthCARE satellite will be launched in early 2024 to fill a gap in the scientific modelling of climate change.

ESA is still looking for alternatives for two further missions that had been in the Soyuz launch pipeline.

Aschbacher made the announcement a day after ESA revealed a new fourth-quarter 2023 target for the first launch of Ariane 6, its latest launch vehicle, marking a delay of about six months. 

ESA had previously said Ariane 6 could slip into 2023 from 2022 without giving a more precise window, but it was widely understood to be aiming for early next year.

Originally due to make its first launch in 2020, the twin-variant Ariane 6 was developed to counter lower-cost competition from SpaceX and preserve Europe’s independent access to space.

Europe has until now depended on the Italian Vega for small payloads, Russia’s Soyuz for medium ones and the near-retirement Ariane 5 for heavy missions. 

ESA said on Wednesday it planned to launch the three remaining Ariane 5 rockets in the first half of next year.

© Thomson Reuters 2022


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First-Ever Female Burial With Weapons Uncovered in Hungary

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First-Ever Female Burial With Weapons Uncovered in Hungary

The first confirmed case of a female burial with weapons from the 10th century in the Carpathian Basin, Hungary, has been uncovered. Skeletal remains and grave goods, including weaponry, were identified at the Sárrétudvari-Hízóföld cemetery. This discovery, described by experts, challenges prior assumptions about societal roles during the Hungarian Conquest period, a time marked by mounted archers and frequent conflicts. Although evidence of weapons was present, researchers approached conclusions cautiously, ensuring findings were grounded in detailed analysis.

Archaeological Findings and Methodology

The study was led by Dr. Balázs Tihanyi and his colleagues, published in PLOS ONE. As reported by Phys.org, the burial contained a silver penannular hair ring, bell buttons, a bead necklace, and archery-related items such as an arrowhead, quiver parts, and an antler bow plate. Genetic and morphological tests confirmed the individual, referred to as SH-63, was female, despite the poor preservation of skeletal remains.

Dr. Balázs Tihanyi, leader of the research team, told the publication that the combination of grave goods in SH-63’s burial was unique within the cemetery, blending typically male and female items.

Challenges in Determining Warrior Status

The presence of weapons did not lead to assumptions about SH-63’s status as a warrior. Researchers noted that being part of a warrior class involved specific societal roles, and physical evidence alone is insufficient for confirmation.

Indicators such as joint changes and trauma were identified, possibly suggesting activities like horse riding or weapon use. However, it was emphasised that these signs could also result from daily life unrelated to warfare.

Historical Implications

It was reported that this discovery provides a glimpse into the complexity of life in 10th-century Hungary, with SH-63’s burial raising questions about gender roles and social structures of the time. Further investigations are planned to compare this case with others from the same period, aiming to deepen understanding of the era’s societal dynamics.

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JUNO Neutrino Detector Nears Completion, Set to Begin Operations in 2025

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JUNO Neutrino Detector Nears Completion, Set to Begin Operations in 2025

Physicists are finalising the Jiangmen Underground Neutrino Observatory (JUNO), a facility designed to unravel the mysteries surrounding neutrinos, subatomic particles with no electric charge and minimal mass. Scheduled to commence data collection in summer 2025, the observatory aims to identify the heaviest among the three neutrino types. Situated 700 metres beneath the ground in China, the project represents a significant step in the study of these elusive particles and their antiparticle counterparts, antineutrinos.

Key Features of the JUNO Detector

According to a Science News report, the observatory features a 35-metre-wide acrylic sphere at its core, which will hold 20,000 metric tons of liquid scintillator. This liquid is engineered to emit light when particles from an antineutrino interaction are detected. The setup includes tens of thousands of photomultiplier tubes to capture these light signals. To minimise interference from other particles, the detector is surrounded by a water-filled cylindrical pit, the filling of which began on December 18, 2024.

Focus on Antineutrinos

Antineutrinos from two nuclear power plants located 50 kilometres away will be observed, offering insights into their properties and interactions. According to project sources, this experimental setup will not only aid in determining neutrino masses but also contribute to broader physics research, including the understanding of matter-antimatter asymmetry.

Significance of JUNO

Reports indicate that this observatory will be the largest of its kind globally, with scientists expecting groundbreaking findings. By investigating antineutrinos in detail, JUNO is anticipated to enhance understanding of subatomic physics and the fundamental structure of the universe.

The collaborative efforts of international teams underscore the importance of the project in advancing neutrino research. This facility marks a major advancement in the quest to uncover the properties of neutrinos, with its findings expected to have far-reaching implications in the field of particle physics.

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Tristan Da Cunha: The Earth’s Most Remote Inhabited Island

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Tristan Da Cunha: The Earth's Most Remote Inhabited Island

Tristan da Cunha, a remote group of volcanic islands in the South Atlantic Ocean, is renowned for being the most isolated inhabited location on the planet. This British Overseas Territory houses a farming community of approximately 250 people on its only populated island, Tristan da Cunha. The settlement, Edinburgh of the Seven Seas, is surrounded by rugged landscapes and extraordinary biodiversity, providing a unique environment for both its residents and visiting researchers. The archipelago is situated over 1,500 miles southwest of St. Helena and stretches across vast expanses of the Atlantic.

Formation Through Ancient Geological Processes

According to a BBC report, the islands were formed millions of years ago due to volcanic activity linked to the breakup of Gondwana, an ancient supercontinent. The hotspot now referred to as the Walvis Ridge Hotspot is believed to have played a significant role in this process. As tectonic plates shifted, magma from deep within Earth’s mantle created these volcanic islands.

The main island, characterised by Queen Mary’s Peak, features a striking central crater containing a heart-shaped lake. This natural feature freezes in winter and thaws during summer, attracting adventurous hikers seeking its summit.

Biodiversity and Accessibility

A Live Science report highlight that the region is a haven for wildlife, including seals, northern rockhopper penguins, and albatrosses. Despite its rich ecosystem, reaching Tristan da Cunha is challenging, requiring a six-day boat journey from South Africa. This isolation has shaped the lives of its inhabitants, who primarily rely on farming for sustenance.

Volcanic Legacy and Extinct Peaks

As per reports, Tristan da Cunha and its neighbouring islands were shaped by volcanic eruptions along the ocean floor. These volcanoes, fed by magma plumes, gradually became inactive as tectonic movement carried them away from the hotspot. Each island in the archipelago represents a distinct phase of this geological evolution, forming a snapshot of Earth’s dynamic history.

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