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NASA astronaut Matthew Dominick recently shared a breathtaking timelapse video featuring vivid red and green auroras from space. The mesmerising footage was captured aboard the Dragon Endeavor spacecraft on 8 October, as it orbited the Earth. These natural light displays, known as auroras, occur due to solar activity interacting with Earth’s atmosphere, creating stunning visuals that can be seen from both the ground and space. Dominick shared his experience in a post, offering a glimpse into his view from the spacecraft’s window.

Auroras Captured from Dragon Endeavor

Dominick filmed the dazzling auroras while looking out of the window of Dragon Endeavor, which was docked near the International Space Station (ISS). He explained that his view also featured the Dragon Freedom spacecraft, enhancing the surreal quality of the footage. “Red and green aurora appear to dance as we fly by Dragon Endeavour’s window with Dragon Freedom in view,” Dominick noted in his post. The vibrant display was a result of solar activity, which has recently intensified.

Life Aboard the Dragon Endeavor

Dominick gave insights into his current living arrangements aboard the spacecraft, mentioning that since the arrival of Crew-9, he had moved out of his quarters on the ISS and into the Dragon Endeavor. He also described how the view from the spacecraft, particularly during the aurora display, made his experience unforgettable. Dominick expressed that the spectacular auroras made staying docked an easy decision, as undocking earlier would have meant missing the stunning sight.

Capturing the Perfect Shot

The team dedicated significant time to capturing the auroras, taking thousands of images over multiple nights to ensure they achieved the perfect settings and lighting for the timelapse. The video quickly garnered attention from viewers worldwide, many of whom were left in awe of the natural beauty and the unique perspective provided by the footage.

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India’s first Astronaut Mission Oostponed to 2026 for Safety Checks

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November 5, 2024

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India’s first Astronaut Mission Oostponed to 2026 for Safety Checks

India has delayed its inaugural astronaut mission under the Gaganyaan programme to 2026, pushing the timeline a year beyond the original schedule. The decision, announced by S. Somanath, Chairman of the Indian Space Research Organisation (ISRO), reflects a commitment to safety in light of recent aerospace industry setbacks. According to Somanath, India’s first manned mission will be preceded by multiple uncrewed test flights, with the first trial scheduled to launch in December 2023. The series of tests will validate crucial systems needed for a successful crewed mission, making way for India to join the ranks of the United States, Russia, and China in independently sending astronauts into space.

Safety First: ISRO’s Cautious Approach

ISRO’s extensive testing procedures and the addition of a fourth uncrewed test flight were outlined by Somanath during a recent talk in New Delhi. He cited the Boeing Starliner’s technical difficulties as a reminder of the importance of rigorous safety checks. ISRO’s Gaganyaan mission, also known as H1, aims to carry one or two astronauts to low Earth orbit, roughly 400 kilometres above the planet. Somanath shared that to avoid any similar mishaps, ISRO has undertaken a systematic approach, testing complex technologies developed entirely in-house.

Preparing for the Final Crewed Launch

To support the mission, the ISRO has conducted a number of preparatory tests, including the evaluation of emergency escape mechanisms and recovery systems. The G1 flight, expected later this year, will see a humanoid robot named Vyomitra onboard to test re-entry, parachute deployment, and a controlled splashdown in the Bay of Bengal. Following G1, three more uncrewed flights will complete the testing phase.

An Ambitious Training Regime for Astronauts

The programme’s crew has been undergoing intensive training in both India and overseas. Shubhanshu Shukla, a test pilot from the Indian Air Force and one of the astronauts in training, is set to join a mission to the International Space Station, working with Axiom Space in Houston. With former NASA astronaut Peggy Whitson as mission commander, Shukla’s experience will include operations such as navigation and docking – critical skills for the Gaganyaan mission’s success.

Government Funding Boosts ISRO’s Gaganyaan Efforts

The Indian government has recently increased Gaganyaan’s budget, adding 111 billion rupees to the project to support the final testing and crew training phases. With all modules now moving to ISRO’s Sriharikota spaceport, India’s first crewed space flight is moving closer to realisation. This development reflects the government’s commitment to advancing India’s space capabilities and ensuring the mission is conducted with the highest safety standards.

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How the Tonga volcano eruption’s shockwave taught us about geohazards

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November 5, 2024

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How the Tonga volcano eruption's shockwave taught us about geohazards

On January 15, 2022, the Hunga volcano near Tonga erupted in an explosive event that sent shockwaves across the planet. The eruption happened around the same time as Cyclone Cody. It created a shockwave powerful enough to trigger low, booming sounds that were heard from New Zealand to Alaska. It also caused a tsunami that impacted distant coastlines, marking the eruption as one of the most impactful volcanic events in recent memory.

Public Observations Fill Gaps in Scientific Data

Following the eruption, GNS Science, New Zealand’s geological agency, invited residents to share their experiences. More than 2,100 people responded, reporting everything from rumbling sounds and pressure in their ears to windows rattling and animals reacting to the disturbance. By comparing these accounts with data from seismic and atmospheric sensors, scientists confirmed that these firsthand experiences mirrored instrument readings closely.

According to Dr. Emily Lane, Senior Scientist at GNS, the information provided by people across New Zealand helped researchers see patterns in how the sound traveled across the country. Most reports of loud “booms” came from the North Island, suggesting the pressure wave from the eruption traveled from north to south. The details in these reports offered scientists insights that even precise instruments might not capture alone.

New Directions for Disaster Preparedness

The crowdsourced observations also revealed how people responded when they heard the booming sounds. Many checked on family or went outside to assess the situation, while others reached out to friends to make sure they were safe. Several respondents mentioned remembering previous volcanic eruptions, showing how past experiences can influence responses to natural events.

Researchers at GNS are now exploring ways to use these kinds of reports in tracking geohazards, like earthquakes and volcanic eruptions. Combining public observations with scientific data could enhance future disaster preparedness, giving communities an additional layer of awareness and response to support public safety and resilience.

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World’s Largest Ocean Predator-Prey Event Captured Off Norway’s Coast

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November 5, 2024

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World's Largest Ocean Predator-Prey Event Captured Off Norway's Coast

A monumental predator-prey event in Norway’s coastal waters has captured scientists’ attention. It marks the largest observed marine feeding spectacle and highlighting significant dynamics in the food chain. Leading the research, Professor Nicholas Makris from MIT’s Department of Mechanical and Ocean Engineering, alongside his team, witnessed this unprecedented event where vast shoals of cod pursued spawning capelin, reshaping how scientists perceive these fish behaviours.

Capelin’s Spawning Journey and Role in the Ecosystem

Every February, billions of capelin—a small Arctic fish—migrate south from the Arctic ice edge to Norway’s coast to spawn. These migrations play a critical role, providing essential nourishment for seabirds, whales, and predatory fish like the Atlantic cod, and maintaining balance within the Arctic ecosystem. During the spawning season, cod take full advantage, building energy reserves that sustain them until the next migration cycle. The delicate predator-prey balance typically regulates itself naturally, but changes to this balance can have profound effects.

Innovative Sonic Imaging Maps Fish Movements

Makris’s team employed an advanced sonic imaging method called Ocean Acoustic Waveguide Remote Sensing (OAWRS) to observe these interactions on a large scale. This technology projects sound waves deep underwater to map fish populations in real-time over extensive distances. In an advance on prior techniques, they also used multispectral acoustic mapping, which distinguishes fish species by identifying their unique swim bladder resonances. Cod and capelin, for example, emit different resonant sounds—making it possible to differentiate them within large shoals.

Unprecedented Predator-Prey Formation Observed

On February 27, 2014, the capelin began moving in loosely formed clusters near the coast. As dawn approached, the capelin congregated into a dense shoal, spanning over six miles and amassing approximately 23 million fish. Reacting to this movement, nearly 2.5 million cod formed their own shoal, closing in on the capelin and consuming an estimated 10 million fish in hours. Shortly after this event, the formations dissolved, and the fish scattered.

Climate Change Concerns for Marine Populations

The implications of such large-scale predation events raise questions about the sustainability of marine species. Makris pointed out that as Arctic ice continues to retreat, capelin face longer journeys to spawning grounds, which could heighten their vulnerability. The study underscores how shifts in predator-prey dynamics due to environmental stresses could significantly impact species central to marine ecosystems.

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