Science Alert

Latest news, top updates and current developments from the world of Health, Science and technology along with tips on physical & mental health and fitness.
Updated: 23 min 47 sec ago
How two satellites are mimicking total solar eclipses in space
European Space Agency's Proba-3 mission has successfully created artificial solar eclipses using two satellites flying in precise formation. This innovative approach allows scientists to study the sun's corona for extended periods, achieving up to six hours of totality per eclipse. The mission promises a wealth of data, potentially revolutionizing our understanding of the sun's behavior and its impact on Earth.
Unique, rare Earth elements unveiled on an underwater island; here’s what it means for the future
Researchers discovered a hidden island near Rio Grande. The island has abundant rare earth elements. This finding could revolutionize green technology. Scientists believe the island was once part of a large tropical landmass. The site may hold evidence of past human habitation. Further research will explore the island's history and composition. This discovery could transform natural resource acquisition.
How do birds find their way during migration: A look at their navigation system
Birds undertake remarkable migrations, utilizing a complex navigation system that combines familiar senses with extraordinary abilities. They rely on landmarks, the sun, stars, and even the Earth's magnetic fields to find their way. Researchers are unraveling these mechanisms, potentially aiding conservation efforts by understanding the genetic basis of migratory routes.
Why the US leads in UFO sightings; here’s the surprising truth behind the numbers revealed
A recent government report suggests that numerous UFO sightings in the US may be attributed to military disinformation campaigns and covert operations rather than extraterrestrial encounters. The All-domain Anomaly Resolution Office (AARO) uncovered strategies used since the Cold War, including staged evidence and misleading briefings, to obscure classified aircraft programs.
Scientists say airborne DNA detects wildlife, diseases, and even drugs
A groundbreaking study in Dublin reveals the presence of environmental DNA (eDNA) in the air, encompassing genetic material from various organisms and even illicit substances. This innovative approach, utilizing simple air filters, enables scientists to monitor biodiversity, detect pathogens, and track human activities without direct contact. Ethical considerations regarding data privacy are crucial as this technology advances.
Ex-NASA agent debunks UFO theories, says government used them to ‘hide a lot of things’
Former NASA agent Joseph Gutheinz dismisses UFO sightings as alien visits, citing vast interstellar distances. He suggests these sightings are likely advanced drones, secret military tech, or government cover-ups to conceal projects from adversaries. Gutheinz urges rational thinking, demanding evidence and suggesting a focus on earthly explanations rather than extraterrestrial speculation.
ISS leaks 'small'; 'not uncommon' to delay launch: Nasa
Nasa and Axiom Space delayed the Axiom-4 mission due to leaks in the ISS's Russian module, now deemed "small." Roscosmos is working on repairs, with a possible launch date of June 19. SpaceX has resolved Falcon-9 rocket LOX leak issues. The mission, including India's Shubhanshu Shukla, will proceed once ISS repairs are confirmed.
Strange radio waves detected beneath Antarctica's ice, scientists still searching for the source
Researchers in Antarctica detected unusual radio signals emanating from beneath the ice during the ANITA experiment, designed to find high-energy particles. These signals, originating from below the surface, defy explanation by known particles like neutrinos. Scientists are exploring alternative theories, including dark matter or unique radio wave behavior, as the source of the mysterious emissions remains unknown, prompting further investigation.
Over 100 marine megafauna struggle for survival, despite global protections
Marine megafauna, including whales and sharks, face increasing threats from human activities, impacting ocean ecosystems. A recent study by WHOI and ANU tracked these species to identify critical areas for conservation. The research emphasizes the need for expanded marine protected areas and mitigation strategies to alleviate human pressure and ensure the survival of these vital ocean giants.
Meet the Indian designer embedding ‘India’s fingerprint in space’ with Axiom-4 mission badge for Shubhanshu Shukla
Group Captain Subhanshu Shukla will carry a mission badge designed by Manish Tripathi on the Axiom-4 mission, symbolizing India's space ambitions and cultural heritage. The emblem, a fusion of tradition and technology, features elements like the Gaganyaan icon, Aryabhata satellite, Jantar Mantar observatory, and India's map, representing the nation's journey in space exploration.
Global Warming vs. Climate Change: Know what is the real difference, causes and steps for controlling
Global warming and climate change are environmental issues. Human activities cause these problems. Burning fossil fuels and deforestation are major factors. These activities increase greenhouse gases. This leads to rising temperatures and extreme weather. Melting glaciers and rising sea levels are also concerns. Renewable energy and afforestation can help. Reducing waste and conserving energy are important steps.
Fish endure intense pain up to 24 minutes when killed, study reveals
A recent study reveals that fish, including rainbow trout, experience intense pain for several minutes when killed using common methods like air asphyxiation. This suffering extends beyond the slaughter itself, with pre-slaughter stressors significantly impacting fish welfare. Researchers advocate for improved stunning methods and updated regulations to ensure more humane practices in fish farming and slaughter.
13-Billion-year-old ‘Cosmic Dawn’ signal captured by ground-based telescope: A breakthrough in tracing the origins of universe
Scientists have achieved a groundbreaking feat by detecting a 13-billion-year-old microwave signal from the Cosmic Dawn using Earth-based telescopes in Chile. This discovery, made by the CLASS project, provides unprecedented insights into the early universe and the formation of the first stars and galaxies.
Astronomers discover high-altitude clouds darkening skies in the YSES-1 system
Astronomers have observed thick, mineral-rich clouds, potentially containing iron, enveloping the young exoplanet YSES-1b, leading to the possibility of iron rain. The YSES-1 system, only a million years old, features two gas giants, offering a unique opportunity to study planet formation. Researchers are intrigued by the persistent dust disk around YSES-1b, challenging existing planet formation theories.
NASA launching rockets to investigate mysterious ionospheric clouds disrupting global communication networks
NASA is embarking on the Sporadic-E ElectroDynamics (SEED) mission, launching rockets from Kwajalein Atoll to investigate unpredictable Sporadic-E layers in the ionosphere. These layers disrupt radio signals, impacting communication and navigation systems. The mission aims to understand their formation and behavior near the magnetic equator, enhancing prediction models to mitigate signal interruptions.
Rare black iceberg spotted in Canada stuns scientists with its mysterious dark hue
A rare black iceberg, spotted off Labrador, Canada, has captivated scientists and social media users. The dark coloration is likely due to sediment incorporated into the ice as a glacier moved over land. As the iceberg melted, these sediment-rich layers were revealed, creating a striking visual phenomenon and a scientific puzzle.
NASA’s James Webb Telescope captures thousands of galaxies in one picture
NASA's James Webb Space Telescope has captured an awe-inspiring image showcasing thousands of galaxies, forming part of the COSMOS-Webb survey. This profound window into the universe reveals star systems both near and far, including galaxies from the early universe. Webb's infrared capabilities enable scientists to study galaxy evolution and interactions across cosmic history, uncovering previously unseen structures.
NASA discovers mysterious X-shaped structures in Earth’s upper atmosphere
NASA's GOLD mission made a surprising discovery. It observed X-shaped patterns in the ionosphere. These patterns occurred even during calm space weather. Previously, scientists thought they only happened during solar storms. The finding changes our understanding of the upper atmosphere. It also affects satellite communications and GPS signals. Scientists are now investigating the causes of these unexpected X-shapes.
Rare blood-red squid captured alive for the first time off Antarctica on camera
In a groundbreaking discovery, researchers captured the first-ever live footage of a rare blood-red Antarctic gonate squid at a depth of 7,060 feet. Identified by its distinctive tentacle hooks, this elusive creature was observed in its natural bathypelagic habitat. This sighting, deemed "mission-critical," provides invaluable insights into the behavior and ecology of this deep-sea predator.
NASA postpones launch to investigate space station leaks, delaying Axiom-4 mission for crew safety checks: Report
NASA has postponed the Axiom-4 mission to the ISS due to ongoing air leak investigations in the Russian segment, in collaboration with Roscosmos. Recent repairs showed initial success, but a new pressure anomaly requires further assessment. The delay impacts Axiom Space's mission, intended to transport four private astronauts via SpaceX, while prioritizing safety and structural integrity.