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The Sun, during its solar maximum phase in 2024, emitted over 50 X-class solar flares—the most powerful category of solar flares. These intense bursts of energy, capable of disrupting satellites and communications on Earth, marked a highly active year for solar phenomena. According to reports, these flares varied in magnitude and impact, with the strongest measured at X9.0 on October 3. Below is a countdown of the ten most notable solar flares recorded this year.

February 9 – X3.38

A solar flare rated X3.38 was observed near the southwestern edge of the Sun. According to researchers, the full intensity might have been obscured due to its position. The flare showcased a “coronal wave,” with solar material visibly displaced across the Sun’s surface.

February 22 – X6.37

This flare, while registering an impressive X6.37, lacked Earth-directed coronal mass ejections (CMEs) and had limited effects beyond its intense X-ray emissions. Data from NASA highlighted its scientific importance despite its minimal impact.

May 6 – X4.52

An eruption from Active Region AR 13663 in the northern hemisphere occurred early in May. This flare, documented by NASA’s Solar Dynamics Observatory, did not produce Earth-directed CMEs, though it highlighted the active state of the Sun during this period.

May 10 – X3.98

From Active Region AR 13664, this solar flare produced a strong Earth-directed CME. Reports indicated it was part of a series of events that caused a G5 geomagnetic storm, leading to widespread auroras visible at unusually low latitudes.

May 11 – X5.89

Another eruption from AR 13664 occurred just a day later. This flare, part of a chain of CMEs, contributed to the extreme geomagnetic activity documented during this period. Its position on the solar limb reduced its direct impact on Earth.

May 14 – X8.79

A confined flare from AR 13664 produced strong X-ray emissions without a major eruption. Despite its physical size, its intensity ranked among the highest of the year, as confirmed by ESA and NASA observations.

May 15 – X3.48

The final X-class flare from AR 13664 during its rotation was recorded on May 15. Observations revealed that its intensity was partly obscured as the active region moved out of Earth’s view. ESA reports noted continued activity from this region even when it was no longer visible from Earth.

September 14 – X4.54

A strong CME directed over the Sun’s eastern limb accompanied this flare. Observers noted pixel saturation in images, a common occurrence in high-energy flares of this magnitude.

October 1 – X7.10

This flare originated from Active Region AR 13842. Despite its size, it did not produce significant geomagnetic storms. Experts observed that smaller flares from this active region later contributed to strong auroras seen worldwide.

October 3 – X9.0

The largest solar flare of 2024, and one of the strongest in recent years, was recorded at X9.0. As per data from the Solar and Heliospheric Observatory, it unleashed energy nine times the X-class threshold, cementing its place as a standout event of Solar Cycle 25.

The Sun’s activity continues to be closely monitored as solar maximum extends into 2025.

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50,000-year-old baby mammoth remains found nearly intact in Siberia

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50,000-year-old baby mammoth remains found nearly intact in Siberia

The well-preserved remains of a baby mammoth, estimated to be 50,000 years old, were recently revealed by researchers in Russia. Found in the thawing permafrost of the Yakutia region, the specimen has been named “Yana,” referencing the river near which it was uncovered during the summer. According to North-Eastern Federal University, where the remains are displayed, Yana is among the most intact mammoth carcasses ever discovered. Reports confirm that this marks one of only seven complete mammoth remains unearthed globally.

Discovery at Batagaika Crater

Yana’s remains were located in the Batagaika crater, an expansive depression in the Verkhoyansky district that continues to expand due to climate change. The mammoth, weighing over 240 pounds and measuring approximately four feet in length, is believed to have died at around one-year-old. Maxim Cherpasov, Head of the Lazarev Mammoth Museum Laboratory in Yakutsk, stated to Reuters that the survival of the head and trunk in such pristine condition is highly unusual. Typically, these parts are consumed by modern predators or scavengers soon after exposure, but Yana’s head remained largely intact.

A Historic Find in Siberian Permafrost

In recent years, Siberia’s permafrost has yielded numerous prehistoric animal remains due to rising temperatures. The Batagaika research station, near where Yana was found, has also provided remains of a horse, a bison, and a lemming. Anatoly Nikolayev, Rector of North-Eastern Federal University, shared in official reports that the preservation of Yana is extraordinary.

This discovery adds to the growing list of remarkable finds in Yakutia, including the remains of a 32,000-year-old sabre-toothed cat cub and a 44,000-year-old wolf carcass uncovered earlier this year. Researchers are continuing tests to gather more insights into Yana’s life and environment, as per Reuters.

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NASA delays Artemis moon missions; new launch dates set for 2026 and 2027

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NASA delays Artemis moon missions; new launch dates set for 2026 and 2027

NASA has confirmed delays to its Artemis program, postponing the first two crewed lunar missions. Artemis 2, which will send astronauts around the moon, has been rescheduled from September 2025 to April 2026. Artemis 3, aiming to return humans to the lunar surface for the first time in over 50 years, has shifted from late 2026 to mid-2027. The postponements, announced on December 5, are attributed to technical challenges, including issues with the Orion spacecraft’s heat shield.

Heat Shield Complications and Safety Measures

A report from Space.com indicate that the delays stem from findings during the uncrewed Artemis 1 mission in 2022. The Orion spacecraft’s heat shield experienced uneven shedding due to internal pressure caused by trapped gases during a planned skip reentry. NASA Deputy Administrator Pam Melroy, during a press conference, stated that adjustments to the spacecraft’s reentry trajectory would ensure safety.

Impact on Contractors and International Competition

Sources suggest that disruptions to contractor momentum and expertise are potential risks from the schedule changes. Concerns have also been raised regarding NASA’s competitive edge in space exploration. China, which has announced plans to send astronauts to the moon before 2030, could narrow the gap in this symbolic race. Beijing’s advancements, including new rockets and lunar landers, are seen as direct competition.

Potential Shifts in U.S. Space Policy

Uncertainty surrounds the Artemis program’s future under the incoming U.S. administration. Reports speculate that President-elect Donald Trump, who has criticised expensive government projects, may reassess NASA’s reliance on the Space Launch System (SLS). With cost overruns and delays plaguing the SLS, alternatives such as SpaceX’s Starship could gain prominence. Starship, integral to Artemis’ lunar architecture, is considered a more cost-effective and reusable option.

Geopolitical Ramifications and the Road Ahead

Changes to the Artemis program could impact NASA’s partnerships with agencies such as the European Space Agency, as well as its broader moon-to-Mars strategy. Officials have reiterated the importance of Artemis in advancing human exploration, though uncertainty looms over its trajectory.

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Underwater Neutrino Telescopes in the Mediterranean for Cosmic Research

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Underwater Neutrino Telescopes in the Mediterranean for Cosmic Research

Efforts are underway in the Mediterranean Sea to install the underwater neutrino telescope known as KM3NeT, as reported by various sources. The telescopes are designed to detect high-energy neutrinos, subatomic particles emitted from unidentified cosmic sources. Unlike traditional telescopes, these devices rely on capturing light generated when neutrinos collide with seawater. This massive project spans a cubic kilometre of the Mediterranean and involves deploying hundreds of detector strands. The work aims to unveil new insights about the universe.

Unique Design and Deployment Challenges

According to experts, KM3NeT comprises two distinct telescopes featuring glass spheres, each packed with photomultiplier tubes. Simone Biagi, a physicist at Italy’s National Institute for Nuclear Physics, shared with Science News that the telescopes are situated several kilometres below the surface. Deployment involves suspending cables of sensors, resembling strands of pearls, each up to 700 metres in length. These are lowered to the seabed and gradually released to unfurl in the water. A remotely operated submersible is used to make precise connections and inspect the setup.

Scientific Goals of the Project

Sources indicate that one telescope, positioned off Sicily’s coast, is designed to observe high-energy neutrinos originating from space. The second, off the coast of France, is dedicated to studying atmospheric neutrinos and their oscillations. These oscillations provide vital data about how neutrinos shift between different forms, contributing to advancements in particle physics.

Operational Challenges at Sea

Physicists working on this project face significant challenges, including harsh sea conditions and tight schedules. According to reports, deployment campaigns occur annually, each lasting about a month. During this period, researchers work under immense pressure to ensure all equipment functions perfectly. Any errors must be corrected immediately, as adjustments after deployment are impossible.

Experts suggest that the partially completed KM3NeT telescopes are already yielding valuable scientific data, providing insights into quantum gravity effects and neutrino behaviours.

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