Cosmic Giants: The Largest Black Hole Yet, Italy's Bold Mars Adventure,

Anna: Welcome, um, to Astronomy Daily, your go to

podcast for the latest and greatest news from

across the cosmos. I'm Anna.

Avery: And I'm Avery. We're thrilled to have you

join us today as we dive into some truly

mind boggling space stories.

Anna: That's right, Avery. We've got a packed

episode for you. Starting with the discovery

of what might just be the biggest black hole

ever measured, weighing in at an

unimaginable 36 billion

times the mass of our own sun.

Avery: Plus, we'll journey to Mars with some

exciting news about Italy's bold uncrewed

mission aboard a SpaceX Starship. And then

look even further out to a truly ambitious

concept for a 400 year voyage

to another star and bringing.

Anna: Us back to Earth. We'll get the latest on

United Launch Alliance's Vulcan rocket launch

as it gears up for a crucial flight, and

discuss the bustling future of launch

operations at Cape Canaveral.

Avery: So strap in because we're about to launch

into the daily dose of space news.

Anna: Alright, let's kick things off with a mind

boggling discovery.

From about 5 billion light years away,

scientists have just measured what could be

the most massive black hole ever found,

sitting right at the heart of one of the most

massive galaxies on record.

Avery: And when we say massive, we mean truly

colossal. Anna. Uh, this thing has a mass

equivalent to 36 billion

suns. To put that in perspective, the

supermassive black hole at the centre of our

own Milky Way galaxy, Sagittarius A,

only holds the mass of about 4.15

million suns. It's almost

incomprehensible.

Anna: It certainly is. This newly measured

giant is located in the Tomic Horseshoe

system. And what's particular particularly

interesting is that it's a dormant black

hole, right?

Avery: Which means it's not actively devouring

matter from its surroundings. Unlike, um, an

active black hole that's constantly feasting

from an accretion disc, which is usually how

we detect them. It's like finding a sleeping

leviathan in the cosmic ocean.

Anna: Exactly. And the fact that this black hole

is in such an enormous galaxy, while

Sagittarius A is in our more modest

Milky Way galaxy, is likely no coincidence.

Researchers like Thomas Collett from the

University of Portsmouth, a study author,

believe the size of these supermassive black

holes is intimately linked to the size of

their parent galaxies.

Avery: It makes sense. As galaxies grow, they

funnel matter toward their central black

holes, which in turn feeds them. This

process can also create incredibly bright

quasars that actually dump so much energy

into their host galaxies that it stops new

stars from forming. It's a, uh, dynamic,

interconnected system.

Anna: What's even more fascinating is how they

managed to measure this dormant black hole

precisely because it wasn't actively feeding.

Normally, it's that commotion, those X ray

emissions, that give black holes away and

allow us to measure them.

Avery: But here they relied on something even more

gravity. Even dormant black holes have an

immense gravitational pull, which warps

the fabric of spacetime, just as Albert

Einstein's theory of general relativity

predicts.

Anna: Einstein's theory fundamentally changed our

understanding of gravity. Instead of an

invisible force pulling things, it describes

gravity as the curvature of spacetime caused

by mass. Imagine a bowling ball on a

stretched trampoline. It creates a dip, and a

smaller marble rolled nearby would fall into

that dip. That's a simplified version of how

objects with mass warp space time.

Avery: And crucially, this warping doesn't just

affect physical matter, it also affects

light. The scientists leveraged this by

observing the light from a background galaxy

in the cosmic horseshoe system. As it

travelled past the foreground galaxy

containing this black hole, the light was

bent and magnified, an effect known as

gravitational lensing.

Anna: The cosmic horseshoe system is actually

famous for this. The alignment is so

perfect that the warped background galaxy

appears as almost a perfect ring around the

foreground galaxy, creating what's called an

Einstein ring. In this case, it's more of an

Einstein horseshoe.

Avery: So by combining those gravitational lensing

measurements with observations of stars in

the foreground galaxy zipping around at

incredibly high speeds, almost 400

kilometres per second, the researchers had

the concrete evidence they needed.

Anna: As Carlos Melo, the study's lead author,

highlighted, this detection relied purely on

the black hole's immense gravitational pull.

It's a game changer, because this method

allows them to find and measure these hidden

ultramassive black holes across the universe,

even when they are completely silent.

Avery: It's like being able to find something that's

been hiding in plain sight. Looking ahead,

this discovery could help us understand the

critical link between galaxy size and

supermassive black hole size. The Cosmic

Horseshoe is what's known as a fossil group,

essentially the final stage of massive

gravitationally bound structures, meaning

it's.

Anna: A galaxy that has absorbed its companions

into one massive structure. It gives us a

potential peek into our own realm's distant

future, as our Milky Way and the Andromeda

Galaxy are likely on a path to collide

someday and might form a fossil group

themselves.

Avery: It's truly remarkable. Thomas Collette

suggests that all the supermassive black

holes from the original companion galaxies in

the cosmic horseshoe have probably merged to

form this single ultramassive black hole. And

so in a way we're witnessing the culmination

of both galaxy and black hole formation

right there. The team's paper on this was

published in the journal Monthly Notices of

the Royal Astronomical Society.

Anna: From the mind bending scale of black holes,

let's turn our attention to some exciting

developments much closer to home,

specifically involving Mars. There's been

a groundbreaking agreement announced this

week.

Avery: That's right Anna. Uh, the Italian Space

Agency, or ASI, has just signed a deal

with SpaceX for an uncrewed mission to

Mars, utilising one of SpaceX's Starship

rockets. This is a pretty significant step

for international collaboration in private

space exploration.

Anna: It certainly is. Announced on August

7th. This agreement includes provisions for

several important scientific payloads. We're

talking about a plant growth experiment, a

uh, radiation sensor and even a uh,

meteorological monitoring station.

Avery: And the Italians are ambitious about the data

they'll collect. ASI expects to gather

information not just during the six month

journey to Mars, but also continuously

throughout the mission's time on the Martian

surface. ASI President Theodoro

Valente even declared that Italy is going

to Mars on social media, describing it as

a first of its kind agreement.

Anna: SpaceX's COO Gwynne Shotwell

echoed that excitement, saying get on board,

we are going to Mars. SpaceX is now offering

Starship services to the Red planet. It's

definitely a bold statement considering

Starship hasn't even launched any commercial

payloads to orbit yet, let alone to another

planet.

Avery: True, the development of Starship is still

very much ongoing with those full scale

prototype tests. Elon Musk himself

targeted the end of next year 2026 for

Starship's first mission to Mars. It'll be

fascinating to see if they can hit that

ambitious timeline.

Anna: And it's worth noting that this deal with

SpaceX bypasses the European Space

Agency. However, Italy has historically

played a major role in ESA's own efforts to

explore Mars. They're the largest contributor

to ESA's ExoMars mission, for example,

which is targeting a 2028 launch for its

Roslyn Franklin rover.

Shifting gears from Martian aspirations,

we're now going to delve into a concept that

truly pushes the boundaries of human

ambition. A multi generational

ship designed to carry thousands of people on

a four century voyage to another star system.

It sounds like science fiction, but this is a

serious design proposal called Chrysalis.

Avery: That's right Anna, this isn't just a fantasy.

Chrysalis is an award winning design from an

Italian team that secured the Project

Hyperion design competition run by the

Initiative for Interstellar Studies. The

challenge was to create a realistic multi

generational ship using current or near

future technology and capable of reaching

another star.

Anna: And what a design it is. The concept

envisions a massive rotating cylinder, more

than 58 kilometres long, weighing an

astonishing 2.4 billion metric tonnes.

The rotation is key because it would create

artificial gravity, combining the muscle and

bone loss that occurs in zero g.

The jury praised its quote, system level

coherence and innovative design of the

modular habitat structure.

Avery: It's like a cosmic Russian nesting doll, with

layers built around a central core. Each

shell would have a specific function. The

outermost layer would act as a shield against

micrometeoroids and radiation, while also

serving as a giant warehouse for tools, spare

parts and raw materials, all managed by

robotic systems moving inward.

Anna: The next shell would house industrial

facilities for recycling, manufacturing

and even pharmaceutical labs. Closer still

are the housing blocks, designed with comfort

in mind, followed by communal spaces like

parks, schools, libraries and hospitals.

And nearest to the core, we have the crucial

food production areas, maintaining entire

ecosystems with plants, fungi,

microbes, insects and even livestock.

Avery: And at the very heart of Chrysalis, the core

would hold communication systems and shuttles

for ferrying passengers down to the surface

of Proxima B, which once the epic journey

finally ends. Proxima B, for context,

is 4.24 light years away,

or about 39 trillion kilometres.

Anna: The ship is designed to travel at one tenth

the speed of light, which would still mean

roughly 400 years to reach its destination.

This includes a year for acceleration at the

start and another for deceleration before

arrival. For propulsion, they're looking

at a direct fusion drive using

helium and deuterium isotopes. While

this technology is untested, it holds the

promise of generating both thrust and

electrical power.

Avery: A journey of this magnitude also brings up

incredible societal challenges. The first

generation of passengers would undergo 70 to

80 years of training in an isolated

Antarctic habitat, testing their ability to

live in close quarters and maintain

psychological health. Birth rates would be

carefully controlled to keep the population

at around 1500 people, even though the ship

could hold up to 2400. Ensuring

sufficient resources.

Anna: Governance would be a fascinating blend of

human decision makers and artificial

intelligence designed to strengthen social

resilience and ensure knowledge transfer

across generations. And for a unique

experience, the ship features a cosmodome at

the front, offering a microgravity zone with

sweeping views of deep space.

Avery: It's a concept that truly makes you think

about the when, not if of interstellar

migration. While nuclear fusion drives and

Century spanning governance systems are still

works in progress. Projects like Chrysalis

push the boundaries of what's possible

influencing future spacecraft architecture,

life support systems and long duration

mission planning right here on Earth.

Anna: From ambitious interstellar journeys, let's

bring it back to Earth for a moment, or

rather to Earth's launch pads. We've got an

important update from ULA or United Launch

alliance regarding their Vulcan rocket which

is poised for a significant milestone.

Avery: That's right, Anna Ah Ula's 202 foot tall

Vulcan rocket is about to embark on its

inaugural National Security Mission,

USSF106 as early as

Tuesday, August 12th. This is a huge moment

for ULA as it's the first post certification

flight for Vulcan and a mission they designed

the rocket specifically to do.

Anna: Tory Bruno, ULA's president and

CEO, highlighted just how critical this

launch is, calling it the anchor

case that drove the design and the

architecture of the whole rocket. It's a

particularly challenging mission involving a

direct injection to geosynchronous orbit,

which makes it one of their longest duration

missions ever.

Avery: And um, it hasn't been an easy road. This

launch was actually hoped for much earlier,

but faced setbacks including a solid rocket

motor anomaly during a certification flight

last year, delays with Sierra Space's dream

chaser and even issues with the USSF

Dash106 payloads themselves.

Anna: Despite those hurdles, ULA is now

confident and ready to ramp up their launch

cadence. Bruno revealed plans for nine

more missions before the end of the year, a

mix of commercial and government flights.

Some will still utilise their reliable Atlas

V rockets.

Avery: He emphasised that they have a stockpile of

both Atlases and Vulcans fully built,

ready to fly, which gives them high

confidence in meeting their goals. There are

13 Atlas V rockets remaining, with seven

allocated to Amazon's Project Cooper, six for

Boeing's CST100 Starliner and one

for Viasat.

Anna: Ula's ambitious target is to achieve a

cadence of two launches per month by the end

of the year and maintain that pace into 20,

26 and beyond. This is a clear signal

that the Vulcan is ready to take its place as

a workhorse in the launch industry,

especially for challenging national security

missions that require such precise and

long duration orbital insertions.

Avery: They're also expanding their infrastructure

with Space Launch Complex 3 at Vandenberg

Space Force Base, nearly 76%

complete and aiming for certification by the

end of the year. And at uh, Cape Canaveral,

their second vertical integration facility,

VIF A, which will handle commercial Vulcan

launches, is almost finished. It sounds like

ULA is truly set to expand their presence in

the launch landscape.

Anna: Speaking of expanding operations, ULA

isn't the only one making big moves at the

Cape. SpaceX is also pushing forward

with its Starship super heavy rocket

operations and this is creating some

significant discussions around launch

capacity and environmental impact.

Avery: Absolutely, Anna. Uh, the Federal aviation

Administration or FAA

recently published a draught environmental

impact statement for SpaceX's proposal

to launch up to 44 times from

Launch Complex 39A using

Starship. This includes plans for up to

88 landings of the first and second stages,

plus static fire tests.

Anna: This is huge because Starship is, as Tory

Bruno from ULA puts it, not just another

rocket on the range. It's uh, of

unprecedented size and aims for a very,

very high launch rate. Its operations will

require massive clearance across the Florida

spaceport, impacting other launch complexes

like 39B and SLC 41.

Avery: Indeed, the Department of the Air Force is

also considering SpaceX's separate proposal

for up to 76 launches and

152 landings at uh, SLC

37. Bruno emphasised that the Space

Force and the FAA need to conduct a

very thorough analysis of how this will

affect not just the ecological environment

but also the overall launch environment for

everyone operating there.

Anna: It's a complex situation. When one vehicle

is fueled, certain operations are restricted

on other pads due to the energetics involved.

Given Starship's size, which is even larger

than a Saturn V, it's something truly new to

the range.

Avery: Uh, exactly. The goal is for the range to

maintain its capacity for all users. The

public comment period for the SLC 37 proposal

is closed with the Air Force sifting through

feedback for a final analysis. Meanwhile, the

FAA is collecting public thoughts on the

LC39A proposal through late August

and early September. It's clear that careful

planning is essential to ensure everyone can

operate safely and efficiently at uh, Cape

Canaveral.

Anna: Well, what a jam packed episode of Astronomy

Daily today. From the mind boggling scale of

that 36 billion solar mass black hole

measured.

Avery: Using Einstein's relativity, to Italy's

ambitious plans to send a starship mission to

Mars pushing the boundaries of

interplanetary exploration.

Anna: And we can't forget ula's aggressive plans to

ramp up their Vulcan launches and the intense

discussions surrounding how Starship's

massive operations will affect the busy

launch schedule at Cape Canaveral.

Avery: It really shows the incredible breadth of

activity happening in space right now. From

the deepest reaches of the cosmos to the very

rockets lifting off from our planet.

Anna: It's truly an exciting time to be looking up.

Thanks for joining us for another episode of

Astronomy Daily. Remember to visit our

website at astronomydaily IO if you'd

like to listen to all our back episodes and

achieve completionist status or simply catch

up on the latest space news.

Avery: We hope you enjoyed diving into these

fascinating updates with us. Be sure to tune

in tomorrow for more space and astronomy

news. Goodbye for now.

In this episode