🚀 New study finds sperm become disoriented and struggle to navigate in microgravity, tumbling like "untethered astronauts."

🔬 Adelaide University researchers mimicked space conditions to test human, mouse, and pig sperm. Human sperm exposed to microgravity showed a ~40% reduction in reaching their target in a simulated female reproductive tract.

🌕 Research aims to understand reproduction for future human space settlements on the Moon and Mars, as well as for potential food sources.

💡 Adding progesterone showed promise in overcoming sperm disorientation in microgravity.

#Space #Science #Reproduction

✨ Scientists warn that plans for more satellites and reflective mirrors in orbit could significantly alter Earth's natural night environment.

✨ Proposals include Reflect Orbital's plan to use reflective mirrors to illuminate areas on demand, and SpaceX's plan for up to 1 million satellites for AI.

✨ Researchers are concerned about disrupting sleep and circadian rhythms in humans and animals, impacting migration, plant cycles, and ocean food webs.

✨ Experts urge regulators to conduct full environmental reviews and set limits on satellite reflectivity and cumulative night sky brightness.

#Space #Environment #Science

🚀 New simulations by Carnegie’s Cong Liu and Ronald Cohen suggest a previously unknown state of matter may exist deep within ice giant planets like Uranus and Neptune.

🔬 Published in Nature Communications, their research predicts a quasi-one-dimensional superionic state of carbon hydride under extreme pressures (500-3,000 gigapascals) and temperatures (6,740-10,340°F) found in these planets' interiors.

✨ This state features a carbon framework with hydrogen atoms moving along spiral pathways, influencing heat/electricity transfer and potentially planet magnetic field generation.

#Space #PlanetaryScience #Physics

✨ Astronomers have potentially detected the first close pair of supermassive black holes in the galaxy Markarian 501. This discovery, made using radio telescopes and led by Silke Britzen from the Max Planck Institute for Radio Astronomy, suggests the two black holes might merge in as little as 100 years.

🔭 The evidence comes from imaging two large particle streams (jets) emanating from the galactic core. This is the first time such a system has been directly observed, providing strong indication of two extremely massive black holes orbiting each other.

⏳ Analysis of 23 years of radio observations revealed changes in a second, previously undetected jet, suggesting the two black holes orbit each other approximately every 121 days. While the black holes themselves cannot be directly imaged due to distance, future detection of low-frequency gravitational waves may confirm their impending merger.

#Astronomy #BlackHoles #Space

🚀 Curiosity rover discovers diverse organic molecules on Mars, including never-before-seen compounds. These chemicals, similar to life's building blocks on Earth, are preserved for an estimated 3.5 billion years.

🔬 The experiment, led by Amy Williams of the University of Florida, identified nitrogen- and sulfur-bearing molecules. However, it's impossible to confirm if they originated from ancient Martian life or geological processes.

🔭 This breakthrough by NASA's Curiosity, using the SAM instrument, highlights the potential for discovering signs of past life in Mars' shallow subsurface, particularly in clay-rich regions.

#Mars #Space #NASA

Cirrus clouds made of water ice surround a Jupiter-like exoplanet called Epsilon Indi Ab

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#Astronomy #Space #Exoplanets

⭐ HH 30, a protoplanetary disc 477 light years away, is showcased by the James Webb Space Telescope in unprecedented detail, complementing Hubble and ALMA observations.

🔭 Webb's combined NIRCam and MIRI data, alongside Hubble and ALMA, reveal HH 30 as an edge-on disc with jets and winds, crucial for studying dust settling in planet formation.

✨ Observations show large dust grains concentrated in a thin central layer of the disc, a vital step where dust clumps form pebbles and eventually planets.

🪐 Webb, Hubble, and ALMA data also highlight nested structures, including a high-velocity jet and a wider outflow, all contributing to new planet formation.

#JamesWebbSpaceTelescope #Astronomy #Space

🔭 A small object named 2002 XV93, located beyond Pluto, might have a thin atmosphere.

✨ If confirmed, this would be the first time a thin atmosphere has been detected on such a small object in that region of space.

#Space #Astronomy #TNO

🌌 After 50 years, astronomers found evidence of a "gentle breeze" wind from Sagittarius A, the Milky Way's supermassive black hole, as reported on June 4 in Astrophysical Journal Letters.

🔭 New, highly detailed observations revealed a cone-shaped void near Sagittarius A, suggesting a hot wind is pushing gas and dust away. This finding helps confirm theories about winds from quietly feeding black holes.

🔭 This discovery is significant as it shows our supermassive black hole behaves like those in other galaxies, potentially influencing star formation and how galaxies evolve.

#Space #Astronomy #BlackHoles

⚡️ NASA's Juno mission has provided new evidence for the formation of high-energy particles, including cosmic rays, by capturing particles traveling near the speed of light around Jupiter.

🔭 The findings confirm that a process observed near Earth, where solar particles gain energy in a region called the foreshock, is also responsible for accelerating particles around Jupiter and potentially across the galaxy.

🔬 Juno measured high-speed electrons in Jupiter's foreshock, finding they reached even higher speeds than those near Earth, scaling with Jupiter's larger bow shock.

#Space #NASA #Juno

* 🦖 The meteorite that wiped out dinosaurs 66 million years ago also created a record-breaking hydrothermal system lasting at least 8 million years.

* 🔬 New research, analyzing samples from the Chicxulub crater in Mexico and using advanced computer modeling, suggests this underground system, conducive to life, persisted for four times longer than previously thought.

* 🌍 These findings, published in Communications Earth & Environment, shed light on how life may have originated in early Earth's hydrothermal systems and could guide the search for life on other planets.

#DinosaurExtinction #Space #Science

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🔭 Northwestern University-led astronomers have discovered salty clouds in the atmosphere of GJ504b, the universe's "Pink Planet."

✨ Using the James Webb Space Telescope (JWST), researchers obtained the first direct evidence of salt clouds in a cold planetary-mass companion's atmosphere, a phenomenon theorized over 15 years ago.

🌍 GJ504b, located 57 light-years from Earth and estimated to be between 2.5 and 4 billion years old, is too faint for ground-based telescopes but was successfully observed by JWST in about two hours.

#Space #Astronomy #JWST

⭐ Comet 3I/Atlas, an interstellar visitor, may be up to 12 billion years old, nearly three times the age of our 4.5 billion-year-old solar system.

⭐ Its elemental composition is unlike any known solar system body, with 10 times more deuterium than typical comets, suggesting formation in an extremely cold environment of -243°C.

⭐ Discovered in July last year, 3I/Atlas is the third interstellar object ever observed. Previous theories of it being an alien spacecraft have been dismissed by NASA and the SETI Institute.

⭐ The comet is currently leaving our solar system and will not return, making future observations challenging, but more interstellar objects are expected with new observatories.

#Space #Astronomy #Comet

🔭 One Million Satellites Could Devastate Night Sky Views, Study Warns
A European Southern Observatory (ESO) study indicates that proposals for over 1.7 million satellites, including very bright ones, would severely impact astronomical observations. The study suggests a limit of 100,000 faint satellites (below naked-eye visibility) to protect the night sky.

✨ Reflect Orbital's Bright Satellites Pose Major Threat
US start-up Reflect Orbital plans to launch 50,000 mirror-like satellites by 2035, designed to reflect sunlight. These could appear four times brighter than the full Moon, making hundreds of satellites visible and potentially turning city skies into a starry void of satellites rather than stars.

🔭 SpaceX's Mega-Constellation and Other Proposals Amplify Concerns
SpaceX alone plans one million more satellites. Combined with other planned constellations like E-Space's Cinnamon and China's CTC-1 and 2, the total number of orbiting objects could drastically brighten the night sky, hindering the observation of distant galaxies and exoplanets.

📉 Loss of Astronomical Data Predicted
Calculations suggest that SpaceX's mega-constellation could cause up to 28% loss of valuable data for telescopes like ESO's Very Large Telescope (VLT). Brighter satellites, such as those from Reflect Orbital, could render entire images from observatories like the Vera C. Rubin Observatory unusable for hours each night.

#Astronomy #Space #LightPollution

🌱 New research suggests Earth's plant life could survive for another 1.87 billion years, potentially until the Sun's increasing brightness boils away Earth's oceans.

💨 Two planetary scientists used models to simulate Earth's climate and the limits of plant survival, considering factors like solar brightening and atmospheric carbon dioxide (CO2) levels.

🔬 Simulations indicate plants could face extinction from CO2 starvation (around 1.84 billion years) or extreme heat (around 1.87 billion years).

🚀 An intriguing caveat: these predictions don't account for plant evolution or future human technological interventions, which could significantly extend plant survival, possibly beyond Earth.

#Science #Space #FutureTech

🌟 Earth-like Planet Found with Atmosphere: Researchers have detected the first atmosphere on a rocky planet, LHS 1140 b, located in the habitable zone of a distant star 48 light-years away.

🔬 Helium Detected, Life Potential Unknown: The detected gas is helium, which alone cannot support life. However, scientists believe other, potentially life-supporting gases, may exist lower in the atmosphere.

🔭 Significant Step in Search for Life: This discovery marks a major advancement in the search for life beyond our solar system, bringing scientists closer to answering whether we are alone.

#Exoplanet #Space #Astronomy

Astronomers using the NASA/ESA Hubble Space Telescope have found definitive evidence that the young Milky Way swallowed a dwarf galaxy just two billion years after the Big Bang, revealing one of the earliest major mergers in the history of our Galaxy.

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#MilkyWay #GalacticMergers #Space telescopes

🌌 Hubble Telescope reveals the Milky Way devoured a dwarf galaxy just 2 billion years after the Big Bang, marking one of the earliest major mergers in our Galaxy's history.

⭐ This ancient merger, named Low-energy-Kraken-Heracles (LKH), occurred approximately 1.8 billion years before the previously known Gaia-Sausage-Enceladus merger, significantly impacting the Milky Way's early structure.

🔭 Astronomers analyzed globular clusters with Hubble, identifying LKH as a significant source of early galactic material and demonstrating that external galaxies played a crucial role in the Milky Way's formation.

#Astronomy #Space #MilkyWay

🔭 Scientists have discovered a massive 10-sided wave pattern in the clouds over Saturn’s south pole, observed by the Hubble Space Telescope in 2023.

💨 This new "decagon" jet stream formation appears larger and more unstable than Saturn's previously known north pole hexagon, with individual sides exceeding 10,000 miles (16,700 kilometers).

🧐 Researchers suggest the decagon may have formed between 2017 and 2023 and, unlike the stationary hexagon, it migrates eastward at approximately 6 mph (10 kph).

#Saturn #Space #Astronomy

⭐ Astronomers discover ZTF J0440+2325, a unique system where a star is slowly consuming a brown dwarf, located 300 light years away.

⭐ This "slow stellar cannibalism" is the first observed instance of a low-mass star actively accreting material from another low-mass object, a process that could last billions of years.

⭐ The "triangular" light curve, initially puzzling, is explained by the steady stream of material from the brown dwarf onto the star, creating a consistent hotspot as they orbit.

#Astronomy #Space #Science