SpaceTime: Your Guide to Space & Astronomy

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In this episode of SpaceTime, we uncover the mysteries lurking in the cosmos, from a rogue supermassive black hole to a meteorite crash in Georgia, and the origins of asteroids Bennu and Richie.
An Invisible Monster in the Cosmos
Astronomers have made a c...

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In this episode of SpaceTime, we explore thrilling recent discoveries and events in the cosmos, including close encounters with asteroids, a newly discovered moon around Uranus, and the cosmic dance of dwarf galaxies.
Earth Dodges Two Asteroid Near Misses
Planet Earth has narrowly avoided two asteroid...

In this episode of SpaceTime, we delve into intriguing new research that challenges our understanding of Earth's climatic history, the discovery of a rare astronomical phenomenon, and China's advancements in lunar exploration.
Did a Comet Trigger the Younger Dryas Cool Off?
A groundbreaking study has emerged suggesting that a massive comet may have instigated Earth's Younger Dryas cool off event, traditionally attributed to glacial meltwater. Analysis of ocean sediments published in the journal PLOS One reveals geochemical clues that support the hypothesis of Earth encountering a disintegrating comet around 12,800 years ago. This event could h...

In this episode of SpaceTime, we explore the latest revelations from the cosmos, featuring the intriguing interstellar comet 3I Atlas, a groundbreaking theory about our place in the universe, and the safe return of SpaceX Crew 10.
The Enigmatic Comet 3I Atlas
Astronomers utilizing NASA's Hubble Space Telescope have captured the sharpest images yet of the interstellar comet 3I Atlas, revealing a solid icy nucleus estimated to measure between 320 meters and 5.6 kilometers in diameter. This comet, traveling at a staggering 209,000 kilometers per hour, is believed to have been journeying through interstellar space for approximately 7 billion y...

In this episode of SpaceTime, we uncover the latest astronomical marvels and pressing concerns in space science.
The Cosmic Horseshoe: A Supermassive Discovery
Astronomers have potentially identified the most massive supermassive black hole ever discovered, dubbed the Cosmic Horseshoe, which is estimated to be around 36 billion times the mass of our Sun. Located approximately 5 billion light years away, this colossal black hole distorts space-time and creates a stunning Einstein ring effect by gravitationally lensing light from distant galaxies. The measurement of its mass combines gravitational lensing and stellar kinematics, providing a rare glimpse into t...

In this episode of SpaceTime, we journey through the latest advancements in space exploration and cosmology, featuring a groundbreaking radar mission, a new hypothesis on the universe's origins, and updates on the International Space Station.
NISAR: A New Era in Earth Observation
The Indian Space Research Organisation (ISRO) has successfully launched the NISAR satellite, a joint mission with NASA that promises to revolutionise our understanding of Earth's dynamic systems. This advanced synthetic aperture radar satellite will monitor changes in forests, wetlands, and ice-covered surfaces with unprecedented detail, providing crucial data for disaster response, infrastructure m...

In this episode of SpaceTime, we delve into the cosmic drama unfolding in our universe, featuring a doomed exoplanet, new revelations about Mars, and the latest crew aboard the International Space Station.
The Death Spiral of TOI 2109b
Astronomers are closely monitoring the death spiral of TOI 2109b, an exoplanet located over 870 light-years away. This gas giant, nearly five times the mass of Jupiter, completes an orbit around its host star in just 16 hours, making it the closest hot Jupiter discovered to date. Researchers from Macquarie University have found that the planet's orbit is d...

In this episode of SpaceTime, we explore groundbreaking discoveries and ambitious plans in the realm of space exploration.
The Most Distant Black Hole: Casper's Lidz 9
Astronomers have identified the most distant black hole ever observed, known as Casper's Lidz 9, dating back 13.3 billion years to a time when the universe was only half a billion years old. This supermassive black hole, weighing in at approximately 300 million solar masses, raises intriguing questions about its rapid growth in the early universe. The findings, published in the Astrophysical Journal, provide a unique opportunity to study the structure and e...

In this episode of SpaceTime, we uncover intriguing discoveries about Mars, the cosmos, and the latest advancements in space technology.
Martian Glaciers: Pure Water Ice
Recent research reveals that Martian glaciers are composed of over 80% pure water ice, challenging previous assumptions that they were primarily rocky. This groundbreaking study, led by Yuval Steinberg from the Weizmann Institute, utilized standardized measurements to analyze the dielectric properties of these glaciers, providing a clearer understanding of their composition. The findings not only enhance our knowledge of Martian geology but also have significant implications for future manned missions, a...

In this episode of SpaceTime, we explore exciting new findings about our galaxy, the latest achievements of NASA's Mars Curiosity rover, and groundbreaking images of the Sun captured by the Parker Solar Probe.
Milky Way's Hidden Satellites
Recent research suggests that the Milky Way may host up to 100 previously undetected satellite galaxies. Using advanced supercomputer simulations and mathematical modeling, astronomers have identified the existence of these faint dwarf galaxies, which could provide crucial support for the Lambda cold dark matter model. Currently, only 60 companion galaxies are confirmed, but with new telescopes like the Vera R...

In this episode of SpaceTime, we delve into significant developments in space exploration, from Australia's latest rocket launch attempt to groundbreaking theories about the origins of life.
Australia's ERIS 1 Rocket Launch: A Learning Experience
In a dramatic turn of events, Gilmour Space's ERIS 1 rocket experienced a failure just seconds after liftoff, marking Australia's first orbital rocket launch in years. Despite the setback, CEO Adam Gilmour emphasizes the lessons learned from the test flight, which will inform the design and operation of future launches. The rocket's ascent was initially promising, but engine failures led to a...

In this episode of SpaceTime, we embark on a thrilling journey through the cosmos, exploring the potential for life on Mars, a remarkable discovery in the outer solar system, and the crucial mapping of sulfur throughout our galaxy.
Searching for Life on Mars
A new study reveals that thick layers of clay on Mars could indicate stable environments conducive to life billions of years ago. Researchers have identified that these clay deposits likely formed in standing bodies of water, providing the right conditions for chemical weathering and potentially supporting ancient life. The findings suggest t...

In this episode of SpaceTime, we uncover groundbreaking revelations about dark energy, lunar geology, and Europe's innovative space weather monitoring initiative.
Dark Energy: A Changing Force?
Astronomers have compiled the largest supernova dataset to date, revealing tantalizing hints that dark energy may not be a constant force in the universe. This research, led by the International Supernova Cosmology Project, analyzes over 2,000 Type 1A supernovae to explore the evolving nature of dark energy, which currently comprises nearly 70% of the universe's mass-energy content. The findings suggest that if dark energy is weakening, it could significantly impact t...

In this episode of SpaceTime, we dive into the depths of cosmic mysteries and groundbreaking discoveries, including the enigmatic Long Period Transient and the stellar companion of Betelgeuse, alongside exciting findings from Mars.
Unraveling the Long Period Transient
Astronomers have uncovered a new cosmic phenomenon, ASCAP J1832-0911, which emits both radio and X-ray pulses every 44 minutes for just two minutes at a time. This first-ever detection of a Long Period Transient has left scientists puzzled about its nature and origins. Lead author Dr Andy Wang from Curtin University discusses the potential theories, including t...

In this episode of SpaceTime, we explore the latest cosmic revelations, including the astonishing discovery of an ancient interstellar comet, the intricate workings of a rare pulsar, and the safe return of the Axiom 4 crew from their mission.
Ancient Interstellar Comet 3I/Atlas
Astronomers have unveiled that the newly discovered interstellar object, 3I/Atlas, could be the oldest comet ever observed, potentially predating our solar system by over 3 billion years. This water-rich visitor, detected by NASA's ATLAS survey, is only the third known object from beyond our solar system to reach us. A study b...

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In this episode of SpaceTime, we delve into groundbreaking discoveries that reveal the impact of human activity on Earth, explore a new celestial body beyond Pluto, and prepare for Japan's upcoming Martian moon mission.
Human Development and Earth's Polar Shift
A recent study published in Geophysical Research...

In this episode of SpaceTime, we tackle some of the most profound questions in science, including the mystery of why the universe exists, the potential for liquid water on Mars, and the birth of a new solar system.
Unraveling the Mystery of the Universe
Scientists have made significant strides in understanding the fundamental differences between matter and antimatter, a question that has puzzled humanity since the dawn of physics. The LHCB collaboration at CERN has provided compelling evidence of a mirror-like asymmetry in how baryons behave compared to their antimatter counterparts. This breakthrough could s...

In this episode of SpaceTime, we explore the latest discoveries in lunar geology, the intriguing concept of dark dwarves, and the stunning features of the Carina Nebula.
The Youngest Basaltic Lunar Meteorite
Scientists have uncovered a 2.35 billion-year-old lunar meteorite, Northwest Africa 16286, which fills a significant gap in our understanding of the Moon's volcanic history. This meteorite, distinct in its chemical profile, suggests that volcanic activity on the Moon persisted longer than previously thought, unveiling new insights into its internal heat generation processes. Lead author Joshua Snape from the University of Manchester explains how this r...

In this episode of SpaceTime, we unlock the secrets of the Moon's far side, explore the Sun's helicity barrier, and discuss the European Space Agency's advancements in orbital launch vehicles.
Extended Volcanism on the Moon's Far Side
Recent findings reveal that the Moon's far side has experienced extended volcanism for at least 1.4 billion years, with two significant volcanic phases occurring around 4.2 and 2.8 billion years ago. This research, stemming from samples collected by China's Chang' E6 mission, provides insights into the Moon's geological history and the asymmetry between its near and far sides. The study h...

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In this episode of SpaceTime, we explore some fascinating recent developments in our understanding of Earth and beyond.
Earth Experiences Its Shortest Day
On July 9, Earth recorded one of its shortest days, with a rotation 1.51 milliseconds shorter than t...

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In this episode of SpaceTime, we delve into groundbreaking research that sheds light on Earth's ancient history, the formation of hot Jupiters, and the enigmatic climate of Mars.
Earth's Oldest Rocks Confirmed in Northern Canada
A rec...

In this episode of SpaceTime, we explore some of the most exciting recent discoveries in astronomy, including the largest Oort Cloud comet ever observed and remarkable achievements from NASA's Mars Perseverance Rover.
Comet C/2014 UN271 Bernardinelli-Bernstein: A Giant from the Oort Cloud
Astronomers have made a groundbreaking discovery by detecting molecular activity in Comet C/2014 UN271 Bernardinelli-Bernstein, the largest and most distant active comet ever observed. Originating from the Oort Cloud, this colossal comet measures nearly 140 km across, revealing complex jets of carbon monoxide gas and providing insight into its behavior far from the S...

In this episode of SpaceTime, we dive into the latest astronomical discoveries and the implications for future space exploration.
New Interstellar Visitor: Comet 3I Atlas
Astronomers have identified a new interstellar object, designated 3I Atlas, which is currently traversing our solar system. Discovered by NASA's ATLAS telescope in Chile, this comet is approximately 670 million kilometers away and poses no threat to Earth, as it will pass at a safe distance of 240 million kilometers. With a velocity exceeding 51 kilometers per second, 3I Atlas is only the third confirmed interstellar visitor, following the enigmatic Oumuamua and t...

In this episode of SpaceTime, we uncover remarkable insights into Mars, Mercury, and the latest developments in space exploration.
Hidden Martian Volcano: Jezero Mons
Scientists have identified a previously overlooked volcano, Jezero Mons, located on the rim of Jezero Crater, where NASA's Perseverance rover is actively collecting samples. This discovery could provide vital clues about Mars' volcanic history and habitability, suggesting that the region may have supported life due to the interplay of volcanic heat and water. The findings, published in Communications Earth and Environment, highlight the need for further exploration of Mars' geology, a...

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In this episode of SpaceTime, we explore the latest discoveries and research that are reshaping our understanding of Mars and the effects of solar activity on planetary climates.
Curiosity Rover's New Martian Rock Samples
NASA's Mars Curiosity rover has dr...

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Parker Solar Probe's Historic Close Approach to the Sun
NASA's Parker Solar Probe has achieved a remarkable milestone, completing its 24th close flyby of the Sun at a record distance of just 6.2 million kilometers from the solar surface. During this encounter, the probe reached speeds of 687,000 kilometers per hour, gathering invaluable data on...

In this episode of SpaceTime, we delve into fascinating connections between Earth's atmospheric conditions and its magnetic field, alongside intriguing insights into Mercury and the mysteries of the Sun's corona.
Link Between Earth's Oxygen and Magnetic Field
A groundbreaking study published in Science Advances reveals a correlation between the fluctuations of Earth's magnetic field and atmospheric oxygen levels over the last 540 million years. Researchers suggest that processes within the Earth might influence habitability on the surface, highlighting the magnetic field's role in protecting our atmosphere from cosmic rays and solar wind. This correlation raises q...

In this episode of SpaceTime, we uncover significant advancements in our understanding of the universe and ongoing developments in space exploration.
Astronomers Find the Universe's Missing Matter
A groundbreaking study reveals that the universe's elusive normal matter is concealed within hot intergalactic gas filaments. This discovery, detailed in the journal Astronomy and Astrophysics, identifies a massive filament of gas, ten times the mass of the Milky Way, connecting four galaxy clusters. Utilizing the European Space Agency's XMM-Newton and JAXA's Suzaku X-ray space telescopes, researchers have successfully characterized this filament, providing crucial insights into the c...

In this episode of SpaceTime, we explore some of the most recent and intriguing developments in space exploration and cosmic phenomena.
Starship's Latest Test Flight Ends in Explosion
SpaceX faces another setback as its 10th Starship test flight ended in a massive explosion at the Massey test stand in Boca Chica, Texas. The incident occurred just minutes before a planned static fire test of the upper stage. We discuss the details of the explosion, including early indications of a cryogenic methane leak and the implications for SpaceX's ambitious goals of interplanetary transport.
A...