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NASA launched the most powerful rocket ever built on a journey to the Moon on Wednesday, in a spectacular blaze of light and sound that marked the start of the space agency’s new flagship program, Artemis. The 32-story tall Space Launch System (SLS) blasted off from the storied Kennedy Space Center in Florida at 01:47 am (12:17pm IST).

“We are going,” tweeted the space agency.

Fixed to its top was the uncrewed Orion spaceship that will later separate and complete an orbit-and-a-half of Earth’s nearest neighbor, in a test run for later flights that should see the first woman and first person of color touch down on lunar soil by the mid-2020s.

America last sent astronauts to the Moon during the Apollo era, from 1969-1972. This time it hopes to build a sustained presence — including a lunar space station — to help prepare for an eventual mission to Mars.

The launch came despite technical issues that ate into the two-hour launch window that opened at 1:04 am (11:34am IST).

Engineers were forced to pause the flow of liquid hydrogen into the core stage Tuesday night because of a valve leak, though a team sent to the launch pad resolved the problem after an hour.

Later, the space agency reported that a radar site monitoring the rocket’s flight path was experiencing problems due to a faulty ethernet switch that had to be replaced.

It was third time lucky for NASA after two previous launch attempts were canceled for technical reasons. Launch was also delayed due to weather setbacks, including Hurricane Ian that battered Florida in late September.

‘Extremely excited’

About 100,000 people were expected on the coast to watch the launch, with the rocket promising to light up the night sky.

Andrew Trombley, a space enthusiast from St. Louis, Missouri, was anxiously hoping for a successful liftoff after several futile trips made for the launch.

“I’ve been down here a couple of times already to watch this thing go up and have it canceled, so, this is like, whatever, the third trip down here for this, so I’m excited to see it go,” said the network engineer.

“I was too little for the Apollo missions, so … I wanted to be here in person.”

Kerry Warner, 59, a grandmother and semi-retired educator who lives in Florida, was fired up for liftoff, which she said was “part of America and what America is all about.”

“Third time’s the charm. We’re hoping for it.”

Far side of Moon

The Orion crew capsule was being lifted by two boosters and four powerful engines under the core stage, which detached after only a few minutes.

After a final push from the upper stage, the capsule will be well on its way, taking several days to reach its destination.

Rather than landing on the Moon, it will assume a distant orbit, venturing 40,000 miles (64,000 kilometers) beyond the far side — further than any other habitable spacecraft so far.

Finally, Orion will embark on the return leg of its journey. When passing through the atmosphere, the capsule’s heat shield will need to withstand a temperature half as hot as the Sun’s surface.

The mission will last 25 and a half days, with a splashdown in the Pacific Ocean on December 11.

NASA is banking on a successful mission after developing the SLS rocket for more than a decade. It will have invested more than $90 billion in its new lunar program by the end of 2025, according to a public audit.

Artemis 2 will involve a flyby of the Moon with astronauts in 2024, while Artemis 3 will see boots on lunar soil, no sooner than 2025.

NASA has named its Moon mission after the Greek goddess of the hunt, and the program aims to send humans back to the Moon by 2025. The last time astronauts walked the surface of the Moon was in 1972, as part of NASA’s Apollo mission. The Artemis mission eventually plans to set up a base for astronauts on the Moon, ahead of long-term plans to send humans to Mars. 


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Lake Mendota’s Bacteria Are Stuck in an Evolutionary Loop, Finds Study

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Lake Mendota's Bacteria Are Stuck in an Evolutionary Loop, Finds Study

Seasonal variations in Lake Mendota in Wisconsin, US, appear to drive rapid evolutionary changes in bacterial species, as revealed through a long-term genetic study. Bacteria within the lake adapt to changing environmental conditions, with species undergoing significant genetic shifts over time. Despite these changes, many bacteria return to nearly identical genetic states each year, creating a cyclical pattern of evolution. The findings shed light on how microbial life responds to seasonal pressures, offering insights into broader ecological and evolutionary processes.

Bacterial Evolution Observed Over Decades

According to a study published in the Nature Microbiology journal, bacterial populations in Lake Mendota adapt to environmental shifts caused by the lake’s seasonal changes. Researchers examined genetic material from a unique archive of 471 water samples collected over 20 years.

Each year, bacteria responded to varying conditions, such as algae blooms in summer and ice cover in winter. Strains within species competed based on their adaptability to specific conditions, leading to a repeated cycle of genetic change.

Impact of Extreme Weather Events

Unusual weather in 2012 provided additional insights into bacterial evolution. During that year, early ice melt, hotter temperatures, and reduced algae levels resulted in significant genetic changes in bacterial communities. Research revealed a notable shift in genes related to nitrogen metabolism among several species, indicating long-term genetic adaptations to these atypical conditions.

Implications for Climate Change

Robin Rohwer, a researcher at the University of Texas at Austin, told Phys.org that climate change may intensify such evolutionary responses, as extreme weather events become more frequent. These findings highlight the adaptability of microbial ecosystems to both gradual and abrupt environmental changes.

Advanced Techniques Unlock New Discoveries

The study, led by Rohwer and supported by computational resources at the Texas Advanced Computing Center, reconstructed bacterial genomes from fragmented DNA samples. With over 30,000 genomes analysed, this research represents one of the most extensive investigations into microbial evolution in a natural setting, offering valuable data for future studies.

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First-Ever Female Burial with Weapons, Believed to Be a Warrior, Discovered in Hungary

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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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