Episodes

  • S27E131: Milky Way's Gamma Ray Mystery, Triple Black Hole Discovery, and NASA's Solar Array Setback

    S27E131: Milky Way's Gamma Ray Mystery, Triple Black Hole Discovery, and NASA's Solar Array Setback
    Oct 30 2024
    SpaceTime Series 27 Episode 131
    *Ultra High Energy Gamma Rays Detected in the Milky Way's Core
    Scientists have detected ultra high energy gamma rays emanating from the centre of the Milky Way. This discovery, reported in the Astrophysical Journal Letters, offers a new perspective on the violent phenomena occurring in the galactic core. Using the High Altitude Water Cherenkov Observatory in Mexico, researchers measured these gamma rays at over 100 tera electron volts, providing insights into the cosmic processes involving Sagittarius A, the galaxy's central supermassive black hole.
    *Discovery of a Potential Triple Black Hole System
    Astronomers have identified what may be the first triple black hole system, located 8,000 light years away. This discovery could be the first direct evidence of gentle black hole formation, challenging the typical violent supernova origin theory. The system includes a central black hole, a closely orbiting star, and a far-off companion star, suggesting a more subtle formation process known as direct collapse.
    *NASA's New Deployable Solar Array System Faces Challenges
    NASA has encountered issues with its new deployable solar array and antenna system on the Pathfinder Technology Demonstrator 4 spacecraft. The lightweight integrated solar array and antenna system, designed to enhance power and communication capabilities, is not deploying correctly due to a bent boom. This technology aims to support future deep Space missions with improved efficiency.
    The Science Robert
    A recent study reveals that standing, as opposed to sitting, does not improve cardiovascular health, despite the popularity of standing desks. Fossilised remains of a new giant elephant species have been found in India's Kashmir Valley, shedding light on elephant evolution. AI-assisted colonoscopies show a slight improvement in polyp detection. Meanwhile, Apple releases its first AI update, focusing on privacy and user data protection.
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    23 mins
  • S27E130: Universe's Early Light, Venusian Mysteries Unveiled, and China's Satellite Success

    S27E130: Universe's Early Light, Venusian Mysteries Unveiled, and China's Satellite Success
    Oct 29 2024
    SpaceTime Series 27 Episode 130
    *Epoch of Reionization: New Insights from Webb
    A groundbreaking study suggests the epoch of reionization, a pivotal era in the universe's early evolution, may have occurred 350 million years earlier than previously believed. Utilising data from the James Webb Space Telescope, astronomers have uncovered a greater abundance of extreme ultraviolet emitting galaxies, challenging established models. This revelation might imply that the cosmic microwave background radiation and the Lyman alpha forest should appear different, posing a conundrum for scientists and opening new avenues for understanding the universe's history.
    *NASA's DaVinci Mission Prepares for Venus
    NASA's upcoming DaVinci mission aims to explore Venus's enigmatic Alpha Regio, a mountainous region shrouded in mystery. The mission, set for the early 2030s, will delve into whether Venus once harboured oceans and continents, akin to Earth. By reanalysing old data and employing modern techniques, scientists have enhanced the resolution of Venus's topography, offering fresh insights into its geological features and potential volcanic activity. DaVinci's descent probe will capture unprecedented high-resolution images, potentially revealing new details about Venus's surface.
    *China's First Reusable Satellite Test
    China has successfully tested its first reusable satellite, the SHY119, launched aboard a Long March 2D rocket. Recovered after 13.5 days, the mission included various payloads, such as plant seeds and technology demonstration devices. This achievement marks a significant milestone in China's Space exploration efforts, showcasing advancements in reusable satellite technology.
    The Science Robert
    A study links hearing loss in older age to an increased risk of Parkinson's disease, with effective management through hearing aids potentially mitigating this risk. In the South Australian outback, palaeontologists have discovered one of Earth's earliest life forms, dating back 550 million years. Meanwhile, a new study warns that up to 33% of frog and toad habitats could become arid by the century's end due to climate change. Additionally, a Gallup poll reveals a significant drop in support for childhood vaccinations in the US, raising concerns about herd immunity.
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    24 mins
  • S27E129: Martian Volcanic Discovery, Exomoon's Volcanic Cloud, and Solar Maximum's Impact

    S27E129: Martian Volcanic Discovery, Exomoon's Volcanic Cloud, and Solar Maximum's Impact
    Oct 25 2024
    SpaceTime Series 27 Episode 129
    *First Evidence of a Volcanic Splatocone on Mars
    Scientists have identified what appears to be the first evidence of a volcanic splatter cone on Mars, similar to those found on Earth. This discovery, led by Ian Flynn from the University of Idaho, sheds light on the volcanic processes of the red planet. The presence of splatter cones, which form under specific conditions, provides new insights into Martian volcanology and the dynamics of volcanic eruptions.
    *Volcanic Moon Around a Distant Exoplanet?
    A new study suggests the presence of a volcanic exomoon orbiting the exoplanet WASP 49 b, located 635 light years away. The discovery is based on a sodium cloud detected near the planet, resembling the volcanic activity seen on Jupiter's moon Io. This potential exomoon could offer a new perspective on moons outside our solar system, although further observations are needed to confirm its existence.
    *Sun Reaches Solar Maximum
    The sun has reached the solar maximum of its 11-year cycle, marking a peak in solar activity. This period is characterised by increased sunspots and Space weather events, impacting satellites, communication systems, and power grids on Earth. NASA's Parker Solar Probe is set to make its closest approach to the sun, providing valuable data to understand solar weather at its source.
    The Science Robert
    A new study finds that the rise in human life expectancy is slowing down. Research reveals that even low-risk alcohol consumption is linked to higher mortality in older adults with health or socioeconomic risk factors. Thawing permafrost may accelerate Arctic riverbank erosion, and Australia's proposed misinformation bill raises concerns about freedom of speech and censorship.
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    28 mins
  • S27E128: Moon's Ancient Impact, Earth's Magnetic Symphony, and X-37B's Aero Braking Feat

    S27E128: Moon's Ancient Impact, Earth's Magnetic Symphony, and X-37B's Aero Braking Feat
    Oct 23 2024
    SpaceTime Series 27 Episode 128
    *Dating the Moon's Oldest Impact Crater
    Scientists have pinpointed the edge of the massive South Pole-Aitken Basin, the largest and oldest known impact crater on the Moon, dating it to over 4.32 billion years old. By analysing a lunar meteorite, researchers have concluded that this impact site is around 120 million years earlier than the previously believed intense period of impact bombardment. These findings provide a clearer picture of the Moon's early impact history and have implications for understanding Earth's early conditions.
    *Recreating the Sound of Earth's Magnetic Polar Flip
    With evidence suggesting that Earth's magnetic poles are about to flip, scientists have recreated what they believe could be the sound of this event. Earth's magnetic field, vital for life, is generated by the planet's molten outer core. The recreated soundscape provides an audio insight into the geomagnetic reversals, which occur roughly every 250,000 years, with the last flip occurring 770,000 years ago.
    *X-37B Space Shuttle's Pioneering Aero Braking Manoeuvre
    The United States Space Force's X-37B Space shuttle has completed a novel aero braking manoeuvre to adjust its orbital flight path. This technique allows the spacecraft to safely eject service module components, preventing them from becoming Space junk. The operation marks a first for the X-37B, which continues its classified missions involving radiation experiments and space domain awareness technology testing.
    The Science Report
    A new study indicates an increase in deaths following extreme rain events, with heart-related and respiratory deaths notably rising. A review highlights the health benefits of a Mediterranean diet for young people, linked to lower blood pressure and cholesterol levels. Engineers have developed energy-efficient bricks using waste materials, offering potential cost savings and reduced environmental impact. Concerns grow over data privacy as consumer advocacy groups reveal the extent of data collection by car manufacturers.
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    24 mins
  • S27E127: SpaceX's Triumph, Asteroid Mysteries, and Europa's Ocean Odyssey

    S27E127: SpaceX's Triumph, Asteroid Mysteries, and Europa's Ocean Odyssey
    Oct 21 2024
    SpaceTime Series 27 Episode 127
    *SpaceX's Starship's Fifth Test Flight Success
    SpaceX's Starship has completed its fifth test flight with a spectacular feat of engineering, successfully catching the super heavy booster with mechanical chopsticks on the launch pad tower. The booster, equipped with 33 Raptor engines, returned to Earth after a successful launch from SpaceX's Starbase in Texas, showcasing the potential for rapid reuse and interplanetary missions. The test flight marks a significant step towards developing Starship for NASA's Artemis III mission, aiming for a manned moon landing in 2026.
    *Origins of Earth's Meteorites Uncovered
    A new study reveals that most meteorites reaching Earth originate from just three major asteroid breakup events. The findings, published in Astronomy and Astrophysics and Nature, identify the Karin, Koronis, and Massalia asteroid families as the sources of 70% of meteorite falls. These discoveries enhance our understanding of asteroid collisions in the main belt between Mars and Jupiter and help trace the origins of over 90% of meteorites on Earth.
    *NASA's Europa Clipper Mission Launches
    NASA's Europa Clipper mission has embarked on its journey to explore Jupiter's icy moon Europa. Launched aboard a SpaceX Falcon Heavy rocket, the spacecraft will investigate Europa's subsurface ocean and potential habitability. The mission will conduct 49 flybys, using its suite of scientific instruments to study the moon's icy shell, composition, and geology. Europa Clipper aims to determine if conditions on Europa could support life, building on data from NASA's Galileo mission.
    The Science Robert
    New research indicates that high temperatures and air pollution are contributing to a global increase in stroke cases, with significant rises in stroke-related deaths since 1990. A study warns that the H5N1 bird flu virus is spreading in the US through dairy cows, primarily via udder infections during milking. Additionally, a report suggests that teenage relationships influence life satisfaction in adulthood, highlighting the importance of social acceptance and close friendships during adolescence. Meanwhile, the Cancer Council of Western Australia faces scrutiny for promoting pseudoscientific therapies like Reiki and reflexology, raising concerns about their endorsement of unproven treatments.
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    35 mins
  • Sun's Fiery Embrace, First Stars' Mystery, and Mars Rover's Triumph

    Sun's Fiery Embrace, First Stars' Mystery, and Mars Rover's Triumph
    Oct 17 2024
    SpaceTime Series 27 Episode 126
    *NASA's Parker Solar Probe Completes 21st Philip of the Sun
    NASA's Parker Solar Probe has achieved its 21st close encounter with the Sun, matching its previous distance and speed records. The spacecraft swooped to within 7.26 million kilometers of the solar surface at a record speed of 635,300 km/h. This flyby sets up the probe for its final closest approaches, with its orbit shaped by a Venus gravity assist. The mission, launched in 2018, aims to study the Sun's corona and the solar wind, unraveling the mysteries of solar phenomena that impact the solar system.
    *Webb Space Telescope Finds Potential Missing Link to First Stars
    Astronomers using NASA's Webb Space Telescope have identified a galaxy with an unusual light signature that could be a missing link in galactic evolution. The galaxy, found approximately a billion years after the Big Bang, features gas outshining its stars, possibly due to massive, hot stars. This discovery offers insights into the transition from the universe's first stars to more familiar galaxies, providing a glimpse into the early cosmic environment.
    *Perseverance Rover's Key Science Instrument Robert
    NASA's Perseverance rover on Mars has regained the use of its critical Sherlock instrument after a six-month effort. The spectroscope, crucial for detecting organics and assessing habitability, had malfunctioned in January. The successful repair allows the rover to continue its mission of analyzing Martian rocks and soil for signs of past life and understanding the planet's geological history.
    The Science Robert
    A new study suggests that caffeine consumption may improve heart health by aiding vascular growth. Another study reveals increasing plant cover in Antarctica, linked to climate change. Research highlights how people often form opinions without sufficient information, contributing to conflicts. Lastly, a study confirms that astrologers perform no better than chance in predicting character or future events.
    00:00:00 - This is spacetime series 27, episode 126, for broadcast on 18 October 2024
    00:00:30 - NASA's Parker solar probe completes 21st close encounter with the sun
    00:03:08 - The Parker solar probe is touching the sun for the first time
    00:08:32 - Galaxy with unusual light signature attributed to gas outshining stars
    00:12:00 - NASA scientists have successfully brought a key science instrument back online on Mars
    00:14:51 - A new study has shown that consuming more caffeine may improve your heart health
    00:17:01 - New study shows people are biased to assume they know enough about situations
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    23 mins
  • Spiral Galaxy's Ancient Order, Earth's Mantle Mystery, and Hera's Asteroid Adventure

    Spiral Galaxy's Ancient Order, Earth's Mantle Mystery, and Hera's Asteroid Adventure
    Oct 16 2024
    SpaceTime Series 27 Episode 125
    *Discovery of the Most Distant Spiral Galaxy
    Astronomers have identified the most distant spiral galaxy ever seen, named REBELS 25. This galaxy, observed as it was 13.1 billion years ago, challenges current models of galaxy formation with its orderly spiral structure, despite being from an era when the universe was just 700 million years old. The discovery, made using the ALMA radio telescope in Chile, offers new insights into the early universe and the evolution of galaxies.
    *Record-Breaking Mantle Rock Recovery
    Scientists have achieved a groundbreaking recovery of rocks from Earth's mantle, the planet's largest component. The 1268-meter-long section of mantle rock, retrieved from the Atlantic's mid-ocean ridge, provides new insights into the mantle's role in Earth's geological processes. The findings, published in Science, reveal unexpected levels of melting and composition, offering clues to the origins of life and volcanic activity.
    *Launch of ESA's Hera Asteroid Mission
    The European Space Agency's Hera mission has launched from Cape Canaveral, just ahead of Hurricane Milton. Hera will conduct a detailed study of the Didymos asteroid system, following NASA's successful Dart mission. The mission aims to enhance our understanding of asteroid deflection techniques, which could be crucial for planetary defense.
    The Science Report
    A new, highly transmissible Covid-19 variant, XEC, has been detected in Australia. The variant, a recombinant of two Omicron subvariants, is spreading rapidly and has been reported in 29 countries.
    A consumer advocacy group reveals that car manufacturers are collecting and sharing extensive data from vehicles, raising privacy concerns.
    A study finds that deactivating Facebook can improve well-being but may reduce political knowledge.
    AMD's new AI chips set new standards for processing speed, outperforming competitors with their advanced capabilities.
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    00:00:00 - This is spacetime series 27, episode 125 for broadcast on the 16 October 2024
    00:00:47 - Astronomers have discovered the most distant spiral galaxy ever seen
    00:03:14 - Scientists have recovered long section of rocks that originated in the Earths mantle
    00:11:26 - NASA spacecraft to study asteroid Dimorphos and its tiny moon Didymos
    00:13:56 - More than 35,000 asteroids pose a threat to Earth
    00:18:45 - Hera will take two years to reach the asteroid system after launch
    00:24:32 - New highly transmissible variant of the Covid-19 virus has been detected in Australia
    00:27:29 - New study finds deactivating Facebook accounts reduces political knowledge
    00:31:05 - spacetime is available every Monday, Wednesday, and Friday through various podcasting platforms
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    33 mins
  • Galactic Giants, Ancient Microbes, and Vulcan's Triumphant Flight

    Galactic Giants, Ancient Microbes, and Vulcan's Triumphant Flight
    Oct 14 2024
    SpaceTime Series 27 Episode 124
    *Galaxies: Bigger Than We Ever Imagined
    Recent findings suggest that galaxies are far larger than previously thought, with gaseous halos extending much further into intergalactic space. This study, published in Nature Astronomy, focuses on the circumgalactic medium of a starburst galaxy 270 million light-years away. These halos, accounting for about 70% of a galaxy's mass excluding dark matter, may already be interacting with neighboring galaxies like Andromeda and the Milky Way. The research offers fresh insights into galaxy evolution, gas cycling, and the cosmic web.
    *Ancient Microbes Found in Billion-Year-Old Rocks
    Scientists have discovered living microbes in 2 billion-year-old rocks from South Africa's Bushveld Igneous Complex. This groundbreaking find, published in Microbial Ecology, represents the oldest known living microorganisms. The study utilized advanced imaging techniques to confirm the microbes were native to the ancient rock, offering a glimpse into early life on Earth and potential clues for extraterrestrial life on Mars.
    *Vulcan Centaur Rocket's Successful Launch
    The United Launch Alliance's new Vulcan Centaur rocket overcame a faulty booster to successfully place its payload into orbit. Despite the anomaly, the mission proceeded from Cape Canaveral, marking an important step towards using Vulcan for high-priority payloads. This launch follows Vulcan's maiden voyage and highlights the transition from older Atlas V and Delta IV rockets.
    The Science Report
    00:00:00 - This is spacetime series 27, episode 124 for broadcast on the 14 October 2024
    00:00:48 - New study finds that galaxies are much larger than previously thought
    00:06:25 - Galaxy is 270 million light years away and is a star bursting galaxy
    00:17:18 - United Launch Alliance's Vulcan rocket has overcome a faulty strap on booster
    00:22:12 - The 2024 Nobel Prizes for Science were awarded this week
    00:24:56 - A new study finds two diametrically opposed personalities enjoy magic the most
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    30 mins