Lunar Mantle Mysteries: Unveiling the South Pole Aiken Basin, Mars' Garnet Evolution
SpaceTime: Astronomy & Science NewsJune 24, 2026x
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00:18:3217.03 MB

Lunar Mantle Mysteries: Unveiling the South Pole Aiken Basin, Mars' Garnet Evolution

SpaceTime Series 29 Episode 75 The Moon’s oldest and largest impact crater A new study suggests the Moon’s oldest and largest impact crater – the two and a half thousand kilometre wide South Pole-Aitken basin -- could have excavated material so deep it included parts of the lunar mantle. New clues to how the red planet Mars evolved Scientists have discovered the mineral garnet in a Martian meteorite which may reveal how the red planet evolved billions of years ago. Mission to boost Swift space telescope’s orbit NASA is about to launch a new mission designed to extend the life of a half billion dollar spacecraft by boosting it into a higher orbit. The Science Report New report shows ocean temperatures reached a new record high in 2025. The brain changes within a month of a first psychedelic experience from magic mushrooms. Discovery that humans were using fire between 1.07 and 1.79 million years ago. Claims artificial intelligence becomes more moral the larger and more complex it gets. Alex on Tech: Lithium Titanate batteries.

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00:00:00 --> 00:00:02 Stuart Gary: This is space Time Series 29, Episode

00:00:02 --> 00:00:04 75 for broadcast on 24

00:00:05 --> 00:00:07 June 2026. Coming up on

00:00:07 --> 00:00:10 Space, the moon's oldest and largest

00:00:10 --> 00:00:13 impact crater. Uh, new clues about how the

00:00:13 --> 00:00:16 red planet Mars evolved and NASA's new

00:00:16 --> 00:00:19 mission to boost the Swift spacecraft back

00:00:19 --> 00:00:21 into a higher orbit. All that and more

00:00:21 --> 00:00:24 coming up on, uh, Space Time.

00:00:25 --> 00:00:28 Stuart Gary: Welcome to Space Time with Stuart

00:00:28 --> 00:00:28 Gar.

00:00:44 --> 00:00:46 Stuart Gary: A new study suggests that the moon's oldest

00:00:46 --> 00:00:49 and largest impact crater, the two and a half

00:00:49 --> 00:00:51 thousand kilometre wide south pole Aiken

00:00:51 --> 00:00:53 Basin, could have excavated material so deep

00:00:53 --> 00:00:56 it included parts of the lunar mantle. The

00:00:56 --> 00:00:58 findings, reported in the journal Science

00:00:58 --> 00:01:01 Advances and Geophysical Research Planets,

00:01:01 --> 00:01:03 provides fresh insights into the early

00:01:03 --> 00:01:05 evolution evolution of our solar system and

00:01:05 --> 00:01:07 what the Artemis astronauts will encounter

00:01:07 --> 00:01:09 when they land at the lunar south pole in

00:01:09 --> 00:01:12 2028. One of the

00:01:12 --> 00:01:14 study's authors, William Bottke from the

00:01:14 --> 00:01:16 Southwest Research Institute in Boulder,

00:01:16 --> 00:01:18 Colorado, says the collision struck the lunar

00:01:18 --> 00:01:20 surface with so much force that it may have

00:01:20 --> 00:01:23 excavated material from deep inside the moon,

00:01:23 --> 00:01:26 including portions of the lunar mantle. Using

00:01:26 --> 00:01:29 advanced models and simulations, Bottke and

00:01:29 --> 00:01:31 colleagues recreated the crater forming

00:01:31 --> 00:01:33 impact and identified new evidence about the

00:01:33 --> 00:01:36 direction and composition of that struck the

00:01:36 --> 00:01:39 moon. Their work shows the best fit was an

00:01:39 --> 00:01:41 impactor approaching from the north and

00:01:41 --> 00:01:43 travelling south, hitting at a low angle and

00:01:43 --> 00:01:45 producing the elongated tapered shape of the

00:01:45 --> 00:01:48 basin. The modelling suggests the

00:01:48 --> 00:01:51 impactor wasn't a simple uniform body, but a

00:01:51 --> 00:01:53 differentiated object with an eyeing course

00:01:53 --> 00:01:55 surrounded by rock. In other words, it could

00:01:55 --> 00:01:57 have been a small protoplanet or a large

00:01:57 --> 00:02:00 differentiated asteroid. As the

00:02:00 --> 00:02:02 impactor slammed into the moon at a low

00:02:02 --> 00:02:05 angle, it excavated a deep asymmetric cavity

00:02:05 --> 00:02:08 and melted the rock in the central basin. The

00:02:08 --> 00:02:10 collision lofted large amounts of material

00:02:10 --> 00:02:13 from both the lunar crust and mantle, which

00:02:13 --> 00:02:15 later settled back onto the basin floor.

00:02:16 --> 00:02:18 The authors also analysed how this ejector

00:02:18 --> 00:02:20 would have been distributed beneath and

00:02:20 --> 00:02:22 around the basin. They compared high

00:02:22 --> 00:02:25 resolution gravity data uh with models that

00:02:25 --> 00:02:27 included both crustal and mantle material,

00:02:27 --> 00:02:29 determining that the basin likely contained

00:02:29 --> 00:02:31 substantial amounts of mantle derived rock

00:02:31 --> 00:02:34 within its interior and mixed into the

00:02:34 --> 00:02:36 ejector blanket surrounding the crater. A few

00:02:36 --> 00:02:39 subsequent impacts within the basin appear to

00:02:39 --> 00:02:41 have later excavated these underlying matter

00:02:41 --> 00:02:43 deposits, bringing some of this material to

00:02:43 --> 00:02:45 the surface where it is lying there, ready to

00:02:45 --> 00:02:47 be sampled by robotic rovers or people on

00:02:47 --> 00:02:50 future missions. Earlier theories

00:02:50 --> 00:02:52 had suggested that the deepest ejector might

00:02:52 --> 00:02:55 be confined to parts of the basin far uh from

00:02:55 --> 00:02:57 the proposed south pole exploration zones.

00:02:58 --> 00:03:00 However, these new simulations and gravity

00:03:00 --> 00:03:02 modelling indicates that key deposits of

00:03:02 --> 00:03:05 mantle bearing ejecta may well blanket

00:03:05 --> 00:03:07 portions of the lunar south pole right where

00:03:07 --> 00:03:10 the astronauts will land. The research is

00:03:10 --> 00:03:11 fascinating because it's telling mission

00:03:11 --> 00:03:14 managers exactly where to look for samples

00:03:14 --> 00:03:16 which could answer some of our biggest

00:03:16 --> 00:03:18 questions about the Moon's origin and

00:03:18 --> 00:03:21 evolution, and consequently, about the

00:03:21 --> 00:03:23 evolution of the inner solar system.

00:03:24 --> 00:03:26 This is space time. Still to

00:03:26 --> 00:03:29 come, new clues about how the Red Planet Mars

00:03:29 --> 00:03:31 evolved, and NASA's new mission to boost the

00:03:31 --> 00:03:34 Swift Space Telescope up into a higher orbit.

00:03:35 --> 00:03:37 All that and more still to come on, uh, space

00:03:37 --> 00:03:38 time.

00:03:53 --> 00:03:56 Scientists have discovered the mineral garnet

00:03:56 --> 00:03:58 in the Martian meteorite. And these findings

00:03:58 --> 00:04:00 may help reveal how the Red Planet evolved

00:04:00 --> 00:04:03 billions of years ago. You see, garnet is

00:04:03 --> 00:04:05 a completely new type of rock from the Red

00:04:05 --> 00:04:07 Planet, and it offers a rare glimpse into the

00:04:07 --> 00:04:10 ancient Martian past. The findings,

00:04:10 --> 00:04:12 reported in the journal Geochemical

00:04:12 --> 00:04:14 Perspectives Letters, could help researchers

00:04:14 --> 00:04:17 piece together the planet's 4.5 billion year

00:04:17 --> 00:04:20 geological history. It offers a new time

00:04:20 --> 00:04:22 capsule, reserving clues about the

00:04:22 --> 00:04:24 temperatures, pressures, and processes that

00:04:24 --> 00:04:26 shaped the Red Planet billions of years ago.

00:04:27 --> 00:04:30 Garnet is a dark red gem. It was

00:04:30 --> 00:04:33 popular in ancient Egypt, with the Romans and

00:04:33 --> 00:04:35 with the Victorian elite. It's also the

00:04:35 --> 00:04:37 January birthstone, and it's a

00:04:37 --> 00:04:40 cornerstone mineral in geology, providing a

00:04:40 --> 00:04:42 powerful record of the tectonic forces, ore

00:04:42 --> 00:04:44 forming processes, and fluid rock

00:04:44 --> 00:04:46 interactions that shape the Earth's crust and

00:04:46 --> 00:04:49 mantle. One of the study's authors, James

00:04:49 --> 00:04:51 Darling from the University of Portsmouth,

00:04:51 --> 00:04:54 says the findings add striking new dimensions

00:04:54 --> 00:04:56 to science's understanding of the geology of

00:04:56 --> 00:04:58 Mars, and they open up a new window into its

00:04:58 --> 00:05:01 evolution. Evolution. Garnet bearing rock

00:05:01 --> 00:05:03 could provide clues about how Mars has

00:05:03 --> 00:05:05 changed throughout its history and provide

00:05:05 --> 00:05:07 new insights into the ancient environments

00:05:07 --> 00:05:09 that could have formed the garnet and related

00:05:09 --> 00:05:12 minerals. The garnet was discovered

00:05:12 --> 00:05:14 during an analysis of a fragment of a Martian

00:05:14 --> 00:05:15 meteorite known as

00:05:15 --> 00:05:18 NWA8171.

00:05:18 --> 00:05:20 The authors originally thought the sample was

00:05:20 --> 00:05:23 simply common pyroxene, But a more detailed

00:05:23 --> 00:05:25 examination using electron microscopy and

00:05:25 --> 00:05:28 microanalysis discovered it to be garnet, a

00:05:28 --> 00:05:30 mineral that had not been identified en masse

00:05:30 --> 00:05:33 before. Garnet is a classic

00:05:33 --> 00:05:35 example of a mineral often found in

00:05:35 --> 00:05:38 metamorphic rocks on Earth. The process of

00:05:38 --> 00:05:40 metamorphism transforms igneous or

00:05:40 --> 00:05:42 sedimentary rocks into a new form through

00:05:42 --> 00:05:45 exposure to extreme heat, high pressure, or

00:05:45 --> 00:05:48 hot fluids. On Mars, the heat and

00:05:48 --> 00:05:49 pressure needed to produce scarlet through

00:05:49 --> 00:05:51 metamorphism could have come from the impact

00:05:51 --> 00:05:54 of a meteor hitting the surface, or from

00:05:54 --> 00:05:56 magma rising up into the crust, or from both.

00:05:57 --> 00:05:59 Uh, however, the authors admit they can't

00:05:59 --> 00:06:01 rule out that the garnet bearing rock may

00:06:01 --> 00:06:03 well have been delivered to Mars and

00:06:03 --> 00:06:05 incorporated into its surface through a

00:06:05 --> 00:06:07 meteor impact. So the authors now need to

00:06:07 --> 00:06:09 study the garnet's, uh, isotopic signatures

00:06:09 --> 00:06:12 in order to verify whether it was originally

00:06:12 --> 00:06:14 produced on Mars or whether it came to Mars

00:06:14 --> 00:06:17 and consequently came to Earth from another

00:06:17 --> 00:06:20 body. Measuring oxygen isotopes

00:06:20 --> 00:06:22 from the Garnet bearing rock itself would

00:06:22 --> 00:06:24 help to confirm its origins. And

00:06:24 --> 00:06:27 needless to say, we'll keep you informed.

00:06:27 --> 00:06:30 This is space time. Still to come.

00:06:31 --> 00:06:33 NASA's new mission to try and save the Swift

00:06:33 --> 00:06:35 space Telescope by boosting it into a higher

00:06:35 --> 00:06:37 orbit. And later in the science report,

00:06:37 --> 00:06:40 discovery that humans were already using fire

00:06:40 --> 00:06:43 between 1.07 and

00:06:43 --> 00:06:45 1.79 million years ago.

00:06:45 --> 00:06:48 All that and more still to come on uh, space

00:06:48 --> 00:06:49 time.

00:06:54 --> 00:06:54 Stuart Gary: Foreign.

00:07:04 --> 00:07:06 Stuart Gary: NASA's about to launch a new mission designed

00:07:06 --> 00:07:08 to extend the life of a half billion dollar

00:07:08 --> 00:07:10 spacecraft by boosting it into a higher

00:07:10 --> 00:07:13 orbit. Catalyst Space will use its Link

00:07:13 --> 00:07:16 rescue craft to boost the orbit of NASA's

00:07:16 --> 00:07:18 Swift gamma ray Space Telescope.

00:07:18 --> 00:07:21 Swift was launched back in 2004 to study

00:07:21 --> 00:07:24 changes in the high energy universe. Things

00:07:24 --> 00:07:26 like gamma ray bursts, which are the powerful

00:07:26 --> 00:07:29 explosions in the cosmos see when a

00:07:29 --> 00:07:31 rapid sudden event takes place in the sky.

00:07:31 --> 00:07:33 Swift acts as an early warning system,

00:07:33 --> 00:07:35 providing crucial information that allows

00:07:35 --> 00:07:37 other observatories to follow up and learn

00:07:37 --> 00:07:40 more about the event and consequently how the

00:07:40 --> 00:07:42 universe works. But after 22

00:07:42 --> 00:07:45 years, Swift's 600 kilometre high orbit has

00:07:45 --> 00:07:48 begun to decay rapidly because of increased

00:07:48 --> 00:07:50 solar activity. NASA initially expected

00:07:50 --> 00:07:53 it to stay in orbit until the early2030s,

00:07:53 --> 00:07:56 but the latest peak in the Sun's 11 year

00:07:56 --> 00:07:58 solar cycle was far stronger than expected.

00:07:59 --> 00:08:02 Increased solar activity heats and swells

00:08:02 --> 00:08:04 Earth's atmosphere and that creates extra

00:08:04 --> 00:08:07 atmospheric drag on orbiting spacecraft.

00:08:07 --> 00:08:09 And that atmospheric drag will cause

00:08:09 --> 00:08:11 spacecraft orbits to decay, ultimately

00:08:11 --> 00:08:13 burning up in the atmosphere unless they're

00:08:13 --> 00:08:16 boosted back up into higher orbits. For

00:08:16 --> 00:08:18 Swift, that wasn't possible and mission

00:08:18 --> 00:08:21 managers realised the telescope was doomed in

00:08:21 --> 00:08:24 a matter of months. It's now just 370

00:08:24 --> 00:08:26 kilometres in altitude and will soon suffer

00:08:26 --> 00:08:28 enough orbital decay to re enter the

00:08:28 --> 00:08:30 atmosphere and begin burning up.

00:08:31 --> 00:08:33 But rather than allowing the mission to end,

00:08:33 --> 00:08:36 NASA decided to take this opportunity to test

00:08:36 --> 00:08:38 a new spacecraft specifically designed to

00:08:38 --> 00:08:41 attach to Swift and boost it back up to its

00:08:41 --> 00:08:44 original orbit. In September 2025,

00:08:44 --> 00:08:46 NASA awarded a contract to Catalyst Space to

00:08:46 --> 00:08:49 mount a robotic servicing mission to Swift.

00:08:49 --> 00:08:52 In less than a year, the mission will use a

00:08:52 --> 00:08:54 400 kilogramme refrigerator sized robotic

00:08:54 --> 00:08:56 rescue craft called LINK to rendezvous with

00:08:56 --> 00:08:58 Swift and boost it back up into a higher

00:08:58 --> 00:09:01 altitude. Link will be Launched

00:09:01 --> 00:09:04 aboard a Northrop Grumman Pegasus XL rocket,

00:09:05 --> 00:09:07 the Pegasus will be taken up to an altitude

00:09:07 --> 00:09:10 of about 45ft, attached to the underbelly

00:09:10 --> 00:09:12 of the converted Lockheed L1011 airliner

00:09:12 --> 00:09:15 Stargazer, which will take off from a Runway

00:09:15 --> 00:09:17 in the Marshall Islands. Once the

00:09:17 --> 00:09:19 airliner reaches the correct altitude,

00:09:19 --> 00:09:21 Pegasus will be released, ignite its own

00:09:21 --> 00:09:24 engine and climb into space. Once in

00:09:24 --> 00:09:26 orbit, Pegasus will deploy the Link rescue

00:09:26 --> 00:09:28 craft, which will then attempt to rendezvous

00:09:28 --> 00:09:30 with Swift, taking images of the spacecraft

00:09:30 --> 00:09:32 from different angles so mission managers can

00:09:32 --> 00:09:34 inspect the ageing probe for damage from

00:09:34 --> 00:09:37 debris and micrometeorites and work out how

00:09:37 --> 00:09:39 they're going to capture it. Link will then

00:09:39 --> 00:09:42 attach to Swift using its three robotic arms,

00:09:42 --> 00:09:44 and gradually, over more than six weeks,

00:09:44 --> 00:09:46 it'll use its thrusters to slowly boost the

00:09:46 --> 00:09:49 observatory back up into its 600 kilometres

00:09:49 --> 00:09:52 high orbit. It's a mission that might not

00:09:52 --> 00:09:54 only save the spacecraft, but demonstrate the

00:09:54 --> 00:09:56 possibility of extending the lives of other

00:09:56 --> 00:09:58 spacecraft through boosting, refuelling or

00:09:58 --> 00:10:01 repair work while in orbit. This report

00:10:01 --> 00:10:03 from NASA tv.

00:10:03 --> 00:10:06 Stuart Gary: NASA is working with an American startup to

00:10:06 --> 00:10:08 attempt something no one has ever achieved

00:10:09 --> 00:10:12 boost a spacecraft before it re enters the

00:10:12 --> 00:10:12 atmosphere.

00:10:13 --> 00:10:14 Stuart Gary: This is just a really different kind of

00:10:14 --> 00:10:16 mission. We can't wait long.

00:10:17 --> 00:10:20 Its orbit has been lowering. If we

00:10:20 --> 00:10:23 do nothing, Swift will re enter the

00:10:23 --> 00:10:26 atmosphere and so there's nothing to lose.

00:10:27 --> 00:10:30 Just a few months ago, this spacecraft was a

00:10:30 --> 00:10:31 conceptual drawing.

00:10:32 --> 00:10:34 Stuart Gary: Catalyst's robotic spacecraft will approach

00:10:34 --> 00:10:37 the observatory, carefully capture it

00:10:37 --> 00:10:40 and propel it to nearly its original orbit.

00:10:42 --> 00:10:44 Stuart Gary: Six months ago, this was a PowerPoint. In

00:10:44 --> 00:10:47 under a year, we're going from identification

00:10:47 --> 00:10:49 of a problem, proposal, contract

00:10:50 --> 00:10:51 award to launch.

00:10:51 --> 00:10:54 Stuart Gary: Saving Swift isn't about just preserving one

00:10:54 --> 00:10:56 mission. It's about moving forward in a

00:10:56 --> 00:10:59 future where we can give spacecraft a second

00:10:59 --> 00:10:59 life.

00:10:59 --> 00:11:02 Stuart Gary: And in that report from NASA tv, we heard

00:11:02 --> 00:11:04 from NASA Swift scientists Brad Senko and

00:11:04 --> 00:11:07 Regina Caputo, Catalyst CEO Gunhee

00:11:07 --> 00:11:09 Lee and Catalyst Link lead scientist Kerryn

00:11:09 --> 00:11:12 Wilson. This space, time.

00:11:28 --> 00:11:28 And time.

00:11:28 --> 00:11:30 Um, now for another brief look at some of the

00:11:30 --> 00:11:32 other storeys making news in science this

00:11:32 --> 00:11:35 week with the Science report. The World

00:11:35 --> 00:11:37 Meteorological Organisation has released its

00:11:37 --> 00:11:39 latest State of the Climate in Asia report,

00:11:39 --> 00:11:42 showing that ocean surface temperatures have

00:11:42 --> 00:11:45 now reached a new record. The study found

00:11:45 --> 00:11:47 the seas of Asia had warmed faster than the

00:11:47 --> 00:11:49 global average, with a mean surface

00:11:49 --> 00:11:51 temperature of around 0.96 degrees

00:11:51 --> 00:11:54 Celsius above the 1991-2020

00:11:54 --> 00:11:56 average, with China, Korea and Japan all

00:11:56 --> 00:11:58 recording their hottest summers on record.

00:11:59 --> 00:12:02 Pakistan, Sri Lanka and Vietnam experienced

00:12:02 --> 00:12:05 devastating floods and monsoons and tropical

00:12:05 --> 00:12:07 cyclone related rainfall, with over 1200

00:12:07 --> 00:12:10 deaths from flooding in Pakistan and Vietnam

00:12:10 --> 00:12:12 alone. A new

00:12:12 --> 00:12:15 study has found that people tend to undergo

00:12:15 --> 00:12:17 changes in their brains within a month after

00:12:17 --> 00:12:19 their first psychedelic experience from magic

00:12:19 --> 00:12:22 mushrooms. The findings, reported in the

00:12:22 --> 00:12:24 journal Nature Communications, involved 28

00:12:24 --> 00:12:26 healthy people who had never taken magic

00:12:26 --> 00:12:28 mushrooms before and scanned their brains

00:12:28 --> 00:12:30 within an hour of a single high dose of

00:12:30 --> 00:12:33 Psilocyphon and again a month later.

00:12:33 --> 00:12:36 The authors found that after a month, modest

00:12:36 --> 00:12:38 brain changes were visible, relating to

00:12:38 --> 00:12:40 cognitive flexibility, psychological insight

00:12:40 --> 00:12:41 and well being.

00:12:43 --> 00:12:45 Archaeologists have uncovered evidence that

00:12:45 --> 00:12:48 early humans were already using fire in South

00:12:48 --> 00:12:50 Africa's wonder work caves between

00:12:50 --> 00:12:52 1.07 and 1.79

00:12:52 --> 00:12:55 million years ago. The previous discovery

00:12:55 --> 00:12:57 of early fire in the Kalahari Desert cave

00:12:57 --> 00:12:59 system had been dated to around a million

00:12:59 --> 00:13:02 years ago. The new findings, reported in the

00:13:02 --> 00:13:04 journal plos one, extend the chronology of

00:13:04 --> 00:13:07 one of the earliest known records of fire use

00:13:07 --> 00:13:10 associated with hominids. Scientists from

00:13:10 --> 00:13:12 the Hebrew University of Jerusalem found

00:13:12 --> 00:13:15 signs of repeated fire use deep inside the

00:13:15 --> 00:13:17 cave, far beyond the reach of natural

00:13:17 --> 00:13:19 wildfires, suggesting that early humans were

00:13:19 --> 00:13:21 bringing naturally occurring fire into the

00:13:21 --> 00:13:23 cave and then maintaining it there long

00:13:23 --> 00:13:25 before they learned how to create it for

00:13:25 --> 00:13:28 themselves. To reach their conclusions, the

00:13:28 --> 00:13:30 authors used a new method based on light

00:13:30 --> 00:13:32 emitting properties of burnt bones.

00:13:33 --> 00:13:35 When illuminated at specific wavelengths of

00:13:35 --> 00:13:37 light, bones that have been exposed to

00:13:37 --> 00:13:40 intense heat emit a distinctive glow and that

00:13:40 --> 00:13:41 can be recorded by instruments.

00:13:43 --> 00:13:45 Well, we may well be heading for a Skynet

00:13:45 --> 00:13:48 future thanks to artificial intelligence, but

00:13:48 --> 00:13:49 it looks like there's a glimmer of hope on

00:13:49 --> 00:13:52 the horizon. A new study claims AI

00:13:52 --> 00:13:54 becomes more aligned with human moral

00:13:54 --> 00:13:56 reasoning, the larger and more complex it

00:13:56 --> 00:13:59 gets. The findings reported in the Journal of

00:13:59 --> 00:14:02 the Royal Society Open Science assessed 75

00:14:02 --> 00:14:04 large language models, including ChatGPT,

00:14:05 --> 00:14:07 Claude, and Deep SEQ, to see if they'd agree

00:14:07 --> 00:14:09 with human preferences when presented with

00:14:09 --> 00:14:12 life or death dilemmas. They found that the

00:14:12 --> 00:14:14 number of parameters a model was made up of

00:14:14 --> 00:14:16 affected how likely it was to agree with

00:14:16 --> 00:14:19 humans. The authors say the more complex the

00:14:19 --> 00:14:21 models were, more closely they aligned with

00:14:21 --> 00:14:24 human morality. But the improvements were

00:14:24 --> 00:14:26 gradual as the complexity increased,

00:14:28 --> 00:14:30 the dangers of lithium ion batteries may soon

00:14:30 --> 00:14:32 be a thing of the past as the next big

00:14:32 --> 00:14:34 development in battery technology called

00:14:34 --> 00:14:37 lithium titanate begins to make an inroad

00:14:37 --> 00:14:40 into the consumer market. With the details,

00:14:40 --> 00:14:41 we're joined by technology editor Alex

00:14:41 --> 00:14:44 Zaharov Roy from TechAdvice Life.

00:14:44 --> 00:14:45 Alex Zaharov-Reutt: Now, these batteries actually have been in

00:14:45 --> 00:14:47 use by NASA and the military for some

00:14:47 --> 00:14:49 decades, but they weren't commercial, uh, or

00:14:49 --> 00:14:52 commercially available because the technology

00:14:52 --> 00:14:54 just hadn't advanced to a degree that you

00:14:54 --> 00:14:56 could replicate as easily as lithium ion.

00:14:56 --> 00:14:58 Now, lithium M ion has a problem in that if

00:14:58 --> 00:15:00 you put a nail through the battery in the

00:15:00 --> 00:15:01 back of your phone, it'll have a runaway

00:15:01 --> 00:15:03 thermal reaction where you'll have this

00:15:03 --> 00:15:05 outgassing of very toxic gases. And we hear

00:15:05 --> 00:15:07 about people with scooters that they charge

00:15:07 --> 00:15:09 them inside their houses, they leave them on

00:15:09 --> 00:15:11 the charger all night. They might maybe have

00:15:11 --> 00:15:13 third party batteries or the batteries

00:15:13 --> 00:15:14 themselves have been damaged, because on

00:15:14 --> 00:15:16 scooters, you know, you're banging on kerbs

00:15:16 --> 00:15:17 and it's just a rough sort of environment for

00:15:17 --> 00:15:20 the battery and they go off. And if people

00:15:20 --> 00:15:22 have died, their houses have been burnt down.

00:15:22 --> 00:15:24 And so people are wary of modern

00:15:24 --> 00:15:26 mobile batteries, especially if it's very

00:15:26 --> 00:15:28 cold, they don't charge. I mean, we heard

00:15:28 --> 00:15:30 about cars that don't charge in the very cold

00:15:30 --> 00:15:32 American winters. And lithium titanite has a

00:15:32 --> 00:15:35 few serious advantages. One, it operates in

00:15:35 --> 00:15:37 those minus 20, minus 30 degrees Celsius

00:15:37 --> 00:15:40 temperatures, which are very bad for lithium

00:15:40 --> 00:15:41 ion batteries. And they operate at, at high

00:15:41 --> 00:15:43 temperatures as well. They recharge to full

00:15:43 --> 00:15:46 in approximately 20 minutes. If you damage

00:15:46 --> 00:15:48 them with a nail or if they get broken in an

00:15:48 --> 00:15:50 aeroplane, uh, seat, they will not have the

00:15:50 --> 00:15:52 runaway thermal reaction. And then on top of

00:15:52 --> 00:15:54 all of that, a normal mobile phone Battery

00:15:54 --> 00:15:57 lasts about 1500 cycles before it starts

00:15:57 --> 00:15:59 getting to about 80% of its life and, you

00:15:59 --> 00:16:00 know, discharges very quickly. We've all

00:16:00 --> 00:16:02 experienced a phone that is not holding

00:16:02 --> 00:16:04 anywhere near the charge you got when it was

00:16:04 --> 00:16:06 new. And of course you could buy a new or

00:16:06 --> 00:16:07 third party battery. But imagine if you could

00:16:07 --> 00:16:09 have a battery that lasted 10 or even 20

00:16:09 --> 00:16:11 years before you needed to replace it.

00:16:11 --> 00:16:13 Lithium titanate batteries have a red charge

00:16:13 --> 00:16:16 cycle not of 1500, but of 20 cycles or

00:16:16 --> 00:16:18 more. There are some robot prototypes from 30

00:16:18 --> 00:16:20 years ago that are still working to this day

00:16:20 --> 00:16:22 because they had lithium titanate batteries.

00:16:22 --> 00:16:23 So Toshiba is one of the companies that is

00:16:23 --> 00:16:25 commercialising this, going to be using it in

00:16:25 --> 00:16:27 power tools that use rechargeable batteries.

00:16:27 --> 00:16:29 We'll see these things in cars and in

00:16:29 --> 00:16:31 scooters and the company behind it have an

00:16:31 --> 00:16:33 operating system that can interface with any

00:16:33 --> 00:16:35 sort of battery and produce the correct sort

00:16:35 --> 00:16:37 of voltage for any sort of application. So

00:16:37 --> 00:16:39 it's kind of this universal translator

00:16:39 --> 00:16:40 between different sorts of batteries and

00:16:40 --> 00:16:42 different sorts of electronics. In the past,

00:16:42 --> 00:16:43 you had to match them very carefully and

00:16:43 --> 00:16:45 closely together. But with this operating

00:16:45 --> 00:16:47 system system merged with this lithium, uh,

00:16:47 --> 00:16:48 titanate batteries, it's going to be the

00:16:48 --> 00:16:50 revolution we've been waiting for in battery

00:16:50 --> 00:16:52 technology, but it'll still take a few years

00:16:52 --> 00:16:54 before it's everywhere. But it's a great

00:16:54 --> 00:16:57 example of that famous saying from William

00:16:57 --> 00:16:58 Gibson, the guy who wrote Neuromancer. He

00:16:58 --> 00:17:01 said the future has already been invented, it

00:17:01 --> 00:17:03 just hasn't been widely distributed yet.

00:17:03 --> 00:17:06 Well, lithium titanates, time is on the very

00:17:06 --> 00:17:07 cusp of being widely distributed and the

00:17:07 --> 00:17:10 battery problems of the past 10 years are

00:17:10 --> 00:17:12 going to fade away into non existent. They'll

00:17:12 --> 00:17:14 be, uh, distant memories.

00:17:14 --> 00:17:15 Stuart Gary: That's Alex Sahar of Reutt from

00:17:15 --> 00:17:18 TechAdvice.com Life and

00:17:18 --> 00:17:20 this is Space Time.

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