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SpaceX brought its 2024 launch schedule to a close by deploying a new batch of Starlink V2 Mini satellites, some equipped with direct-to-cell technology, into orbit. The mission, Starlink 12-6, lifted off at 12:39 a.m. EST on Tuesday, December 31, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. This marked SpaceX’s 132nd and final Falcon 9 launch of the year, a significant achievement in its efforts to expand global internet access.

Mission Overview

Reports indicate that the Falcon 9 rocket carried 21 Starlink broadband satellites into low Earth orbit. Thirteen of these satellites are said to feature direct-to-cell capabilities, enhancing connectivity in remote areas. The mission was originally scheduled for December 30 at 1:02 a.m. EST but was delayed due to launch preparations. 

The Falcon 9 booster used for this mission, designated B1078, has now completed its 16th flight. Previous missions supported by this booster included Crew-6, USSF-124, and 11 Starlink missions. Sources confirm that the booster successfully landed on the droneship “Just Read the Instructions” stationed in the Atlantic Ocean, marking the 104th landing on this particular vessel and the 390th overall in SpaceX’s history.

A Record-Setting Year

As reported by satellite tracker Jonathan McDowell, over 6,850 active satellites are now part of the Starlink constellation, establishing it as the world’s largest satellite network. This final mission capped a year of milestones, including 89 Starlink-specific launches.

Looking Ahead to 2025

SpaceX is reportedly aiming to increase its launch cadence in 2025. Planned missions include two commercial astronaut flights—Fram-2 and Ax-4—and two crew rotations for NASA and its partners. The company is also expected to broaden its customer base while continuing to expand its Starlink constellation.

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Solar Missions in 2025: The Spacecrafts That Will Study the Sun This Year

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January 5, 2025

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Solar Missions in 2025: The Spacecrafts That Will Study the Sun This Year

The study of the Sun and its influence on the solar system is expected to make significant strides in 2025. The year will bring new developments driven by an active solar cycle, upcoming spacecraft missions, and a strategic roadmap for the next decade. Researchers are focused on unlocking key mysteries of the sun, whose activity impacts life on Earth and extends far beyond Pluto. These efforts aim to provide critical insights into solar processes and their effects across the solar system.

Solar Cycle 25 and Ongoing Activity

According to NASA, the Sun is currently in the maximum phase of its 11-year activity cycle. This period has produced numerous solar flares and outbursts that are being closely monitored. Instruments such as the largest solar telescope and spacecraft that have made record-setting approaches to the sun have played a key role in collecting data. Despite not breaking records, Solar Cycle 25 has generated valuable observations that have propelled research forward.

Upcoming Spacecraft Missions

As per NASA, six new missions are scheduled for launch in 2025. These include the Interstellar Mapping and Acceleration Probe (IMAP), designed to chart the sun’s outer sphere of influence, and the Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE), which will study space weather around Mars. The Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission, involving four small satellites, will examine the sun’s outer atmosphere.

A Decadal Blueprint for Research

The recently released heliophysics decadal report outlines research priorities for the next ten years. Among the proposals are two large-scale projects, including a mission deploying over 26 spacecraft to study Earth’s magnetic field and auroras. Another mission aims to explore the sun’s poles over a full solar cycle, a region considered pivotal to understanding the sun’s magnetic field dynamics.

Efforts will also be supported by the Next Generation Global Oscillations Network Group (ngGONG), enhancing the capability to study the solar interior. With these initiatives, heliophysics is positioned to address long-standing questions and open new research avenues in 2025.

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New Study Uncovers Vital Ocean Processes for Carbon Storage and Climate Regulation

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Researchers Reveal Crucial Ocean Processes That Help Fight Climate Change

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January 5, 2025

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Researchers Reveal Crucial Ocean Processes That Help Fight Climate Change

Organic carbon preservation in ocean sediments, a phenomenon critical to the Earth’s carbon cycle, has been illuminated by new research. The study explores mechanisms that prevent organic carbon from breaking down, a process vital for climate regulation. Preserved carbon, over time, can transform into fossil fuels, locking away carbon dioxide—a leading contributor to climate change. These findings offer insights into the Earth’s natural systems that regulate carbon levels and influence the formation of oil and gas reserves.

Study Identifies Key Carbon Preservation Mechanisms

According to a study led by scientists from The University of Manchester and the University of Leeds and published in the journal Nature Geoscience, two primary processes—sorption and molecular transformation—are crucial for carbon storage in ocean sediments.

Sorption involves the uptake of carbon by mineral surfaces, while molecular transformation converts small, reactive molecules into larger, stable forms. The study used a comprehensive model, integrating real-world sediment data, to identify these processes as dominant contributors to carbon preservation.

AI Provides Deeper Insights into Carbon Storage

Artificial intelligence (AI) was utilised to enhance the study’s model, enabling accurate predictions of carbon storage efficiency. Dr. Peyman Babakhani, a lead researcher, highlighted that AI helped clarify complex environmental processes. The research revealed that carbon preservation in sediments is nearly three times higher than earlier estimates, aligning closely with observed data.

Implications for Climate Change Mitigation

The findings underline the importance of sorption and molecular transformation in protecting organic matter from degradation and facilitating its burial in deeper sediment layers. This preserved carbon can eventually become fossil fuels, effectively keeping carbon dioxide from entering the atmosphere. These insights could influence climate change strategies, such as ocean fertilisation, aimed at enhancing natural carbon storage mechanisms.

By shedding light on these processes, the study opens pathways for managing carbon emissions and leveraging the ocean’s role in the global carbon cycle.

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

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January 5, 2025

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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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