Stellar Strides: SpaceX's Starship Trials, Blue Origin's Mars Mission

Anna: Welcome to Astronomy Daily your go to source

for the latest happenings in space and

astronomy. I'm Anna.

Avery: And I'm Avery. We're excited to bring you

more cosmic insights and groundbreaking

discoveries from across the universe.

Anna: Today we've got some fascinating stories

lined up covering everything from the latest

updates on um, SpaceX's ambitious

Starship programme to Blue Origin's

plans for a uh, second new Glenn launch

heading to Mars.

Avery: We'll also dive into the mysterious world of

intermediate black holes which are truly the

universe's most elusive objects. And talk

about NASA's new initiative to develop

orbital transfer vehicles for more efficient

space travel.

Anna: It's going to be a captivating journey

through the cosmos, filled with news that's

both professional and easy to understand.

So buckle up and get ready for Astronomy

Daily.

Avery: Alright, let's dive into some of the latest

news from SpaceX specifically regarding their

colossal Starship rocket. It's been quite

a journey for them this year with a few bumps

along the way.

Anna: That's right Avery. SpaceX is gearing up for

the 10th full scale test flight of Starship

and they just received launch approval from

the Federal Aviation Administration, which is

a big step.

Avery: Absolutely. They also completed a final

propulsion system test known as a spin prime

test earlier this week at their Starbase site

in South Texas. After that the ship was

rolled back to a hangar for engine

inspections, heat shield touch ups and other

final preparations.

Anna: The target launch date is set for no earlier

than next Sunday, August 24th at

6:30pm local Texas time. This

flight is crucial as SpaceX aims to move

past a challenging period. Last year,

2024 was quite successful for Starship

with four flights and significant

achievements including the first CA patch of

uh, a super heavy booster back at the launch

pad.

Avery: But 2025 has been a different story.

We've seen four disappointing test flights

from January through May and even a ground

test explosion in June. These setbacks

have pushed back major programme milestones

like the recovery and reuse of the upper

stage and in orbit refuelling demonstrations

which are both critical for their long term

goals of Mars settlement and supporting

NASA's Artemis programme.

Anna: Let's talk about those setbacks because

SpaceX has been quite transparent about the

causes. The FAA recently closed its

investigation into the most recent in flight

failure. In May, the rocket started leaking

propellant after reaching space, preventing

it from completing its test flight.

Avery: The FAA confirmed that the probable root

cause was a failure of a fuel component.

SpaceX's investigation pinpointed a faulty

main fuel tank pressurisation diffuser

on the forward dome of Starship' primary

methane tank. This diffuser failed just a few

minutes after launch, leading to a pressure

drop and a worsening fuel leak that

overwhelmed the attitude control system.

Anna: SpaceX actually recreated this diffuser

failure on the ground during their

investigation, and has since redesigned the

part to better direct pressurised gas and

reduce strain on the structure. The FAA has

signed off on these findings, giving them the

green light for flight 10. Now

for the ground explosion on June 18th.

This accident destroyed the vehicle ship

36 and damaged the test site,

pushing back the programme by another couple

of months. SpaceX attributed this

to likely damage to a high pressure

nitrogen storage tank inside Starship's

payload bay, specifically a

composite overwrapped pressure vessel,

or COPV.

Avery: That's right, the COPV violently

ruptured as corrective actions, SpaceX

plans to operate COPVs on upcoming

flights ah at lower pressures, conduct

additional inspections for damage, implement

more stringent acceptance criteria, and

make a hardware change to address the issue.

It shows their commitment to learning from

every test, whether it's in the air or on the

ground.

Anna: It's all part of the iterative design process

that SpaceX is known for. The previous

flights this year, including those in January

and March, also faced propulsion failures

and lost control, scattering debris.

The May flight made it, further completing

its engine burn, but then spun out of

control, hindering heat shield data

collection.

Avery: Mastering the heat shield design is

absolutely critical as it's vital for

Starship's reusability. For Flight

10, SpaceX will be testing several

different ceramic and metallic tile

designs to gather crucial data during

reentry. They want this data as soon as

possible to inform the design of version

three, or Block three of Starship,

which will be the first to actually fly.

Anna: Into orbit beyond the heat shield. There

are other ambitious objectives for Flight 10.

They plan to deploy spacecraft simulators

mimicking their next generation Starlink

Internet satellites, an objective that hasn't

been met in the last three flights.

Avery: And for the Super Heavy Booster, instead of

attempting a catch at the launch pad, which

they've done successfully three times, this

flight will aim for a controlled splashdown

in the Gulf of Mexico. This will allow them

to experiment with new landing methods, such

as controlling the final descent with a

different mix of engines. And to avoid

issues like the structural failure of the

field transfer tube seen in the last booster

test, which occurred due to a high angle of

attack during descent.

Anna: It's clear that SpaceX is using every

flight, successful or not, to gather

data and refine their designs. They've

stated that every Lesson learned from both

flight and ground testing features feeds

directly into the next generation of Starship

and super heavy. They have just two more

version 2 vehicles before moving to the

taller version 3 which will feature

improved Raptor engines. It's a true

try, try again approach to rocketry.

Avery: Speaking of ambitious endeavours, let's shift

our focus to Blue Origin which is also making

significant strides. They are gearing up for

the second ever launch of their powerful New

Glenn rocket launch.

Anna: That's right Avery. This launch, dubbed

NG2 is particularly exciting

because it will loft NASA's escapade

mission to Mars. Blue Origin is

targeting no earlier than September 29th for

this liftoff.

Avery: The twin Escapade probes, which stand for

escape and plasma acceleration and

Dynamics explorers have actually been waiting

for this ride. They were originally slated

for New Glenn's maiden launch back in

January, but NASA decided not to risk

a costly mission delay on a debut flight.

Anna: A wise decision I think. Now that the

mission has a target date, Blue Origin has

been buzzing on social media promising some

exciting things around New Glenn's pad

at space Launch Complex 36 in

Cape Canaveral, Florida.

Avery: So what exactly will Escapade be

doing at Mars? It's an interplanetary

mission which is quite ambitious for a uh,

relatively new launch vehicle. The twin

orbiters will study the magnetosphere around

the Red Planet and analyse how

energetic solar wind particles interact

with the Martian atmosphere. This kind of

data is crucial for understanding Mars

atmospheric loss over time.

Anna: Absolutely fascinating. The satellites

themselves were built by California based

rocket Lab and once in space their

operation will be handed over to the

University of California's Space Sciences

Laboratory managing the $80 million

mission.

Avery: And um, in addition to this crucial NASA

payload, Blue Origin will also carry

a secondary payload as part of the NG2

launch. It's a technology demonstration from

satellite communications company ViaSat

supporting NASA's Communication Services

Project for in space networking.

Anna: One more thing to look out for with this

launch. Blue Origin will once again attempt

to land and Recover New Glenn's

188.5-foot tall Fort First

Stage Booster on a drone ship in the Atlantic

Ocean. These successfully launched a test

version of their Blue Ring satellite bus on

the first flight earlier this year. But the

landing attempt failed. So this will be a big

moment for them as they continue to work

towards reusability.

Now from the Red Planet, let's turn our gaze

even further out into one of the

universe's most enigmatic phenomena. Black

holes. Specifically we're talking about the

mysterious intermediate black holes.

Avery: That's right, Anna we know about supermassive

black holes at the centres of galaxies and we

understand how smaller stellar mass black

holes form from dying stars. But there's

always been this missing link, a size range

in between from a few hundred to a few

hundred thousand times the mass of our sun

that has remained incredibly elusive.

Anna: These in between black holes, often called

intermediate black holes or

imphs, are much harder to find.

But a team of astronomers, including Crystal

and Karan from the conversation, along with

postdoctoral researcher Anjali Yelikar,

have been making significant strides. They're

using ripples in spacetime known as

gravitational waves to spot some of these

elusive black holes merging.

Avery: It's a bit like being at a baseball game, but

you're sitting behind a concrete column and

the crowd is deafening. You can't see or

hear the game directly. So what do you do?

You use a high quality microphone and a

computer algorithm to separate the crowd

noise from the distinct thunk of, uh, a bat

hitting a ball.

Anna: And with enough practise, you can start to

follow the game, figuring out when the ball

is hit, where it goes and even where the

runners are. This is a challenging way to

watch a game, but it's similar to how

astronomers use specialised observatories

like the Laser Interferometer Gravitational

Wave Observatory, or ligo, to

listen to the universe.

Avery: LIGO is designed to detect the faint

gravitational waves produced by two black

holes merging into a single more massive

black hole. By analysing these waves,

scientists can deduce incredible details

where the merger happened, how far away it

was, the masses of the parent and resultant

black holes and um, even the direction in the

sky.

Anna: Most of the parent black holes observed in

these merger events are stellar mass black

holes originating from collapsed stars.

But here's where the mass gap comes in.

Stars between about 20 to 100

solar masses can form black holes. However,

due to complex nuclear physics, really

massive stars explode differently and don't

leave behind a black hole.

Avery: This creates a mass gap where black holes

larger than about 60 solar masses are too

big to have been formed directly from a sing

single dying star. These are what the

researchers call light intermediate mass

black holes or light imbhs.

They're special because their formation isn't

fully understood and they bridge that

critical knowledge gap in how the universe

grows and evolves.

Anna: In their recent research, the team analysed

11 black hole merger candidates from Ligo's

third observing run. Their analysis showed

that 5 of the post merger black holes were

confidently in the light intermediate black

hole range.

Avery: And here's the kicker. They found that One of

the merger events had a parent black hole

that was already in the mass gap range, and

two had black holes above the mass gap.

This strongly suggests that there are other

currently unknown ways for the universe to

create such massive black holes, possibly

through earlier black hole mergers.

Anna: It's an exciting finding because it helps us

understand how often black holes find each

other and merge. As LIGO continues its fourth

observing run, astronomers are eager to apply

these analytical techniques to new data,

hoping to hear even more signals from these

elusive, more massive black holes and

shed more light on their formation.

Avery: That's truly fascinating, Anna.

From the fundamental building blocks of the

universe, let's now pivot to a more practical

aspect of space exploration. How we actually

get things where they need to go in the

vastness of space.

Anna: Absolutely, Avery. NASA has just announced

a significant new initiative asking six

companies to help the agency move spacecraft

between those notoriously difficult to reach

orbits. They've awarded a total of

$1.4 million to a

group that includes some big names like Blue

Origin, United Launch alliance and

Rocket Lab.

Avery: This is all about what are called Orbital

Transfer vehicles, or OTVs. These

vehicles launch on top of rockets,

essentially carrying other spacecraft and

then delivering them to very specific,

often hard to access orbits. It's

a game changer because spacecraft usually

have limited fuel on board, making it tough

for them to change orbits on their own. And

rockets, well, most of their fuel is

burned just getting off the ground.

Anna: Exactly. So OTV's are designed to

take a, uh, satellite or even a series of

satellites away from the main rocket and

transport them to another orbit or even

further afield into deep space. The initial

studies for NASA are due by mid September

and the agency's long term goal is to send

more missions to the Moon and Mars in a more

cost efficient way.

Avery: It's a multi orbit approach that NASA sees as

essential, especially with the increasing

pace of commercial space deliveries. Joe

Dant, an Orbital Transfer Vehicle Strategic

Initiative owner at Kennedy Space Centre,

stated that these new awards will increase

unique science capability and lower the

agency's overall mission costs.

Anna: And they've got some interesting proposals on

the table. For instance, Aeroscience and

Technology is partnering with Quantum Space

to look at Quantum's Ranger for delivering

payloads from low Earth orbit to lunar

orbit.

Avery: Blue Origin has two studies, one for their

Blue Ring platform, which can use hybrid

propulsion for orbits ranging from

geostationary to cislunar,

Mars and even interplanetary locations.

Their second study is for an upper stage of

their new Glenn rocket.

Anna: Firefly Aerospace is looking at using its

Elytra orbital vehicles for lunar

orbit operations and CIS lunar space

applications like imaging or payload

delivery. Impulse Space has two vehicles,

MIRA and Helios, designed for

payload hosting and deployment, with

Helios specifically able to move from low

Earth orbit to medium or

geostationary orbits or even further.

Avery: Rocket Lab is conducting two studies, one for

their neutron rocket and another for an OTV

based on their Explorer spacecraft capable of

reaching various orbits including medium

Earth orbit, geosynchronous and even

destinations like the Moon, Mars or

asteroids. And United Launch alliance is

studying their Centaur 5 upper stage for

rideshare missions to cislunar Space really

highlights the push.

Anna: Towards more efficient, flexible space

logistics. With these OTV's, we could see

a future where getting to any orbit, no

matter how remote, becomes far more

achievable and affordable. It really does.

From the ambitious next steps for SpaceX's

Starship to despite its recent challenges to

Blue Origin's exciting second new Glenn

launch carrying NASA's Escapade mission to

Mars, and the ongoing quest to understand

intermediate black holes using gravitational

waves, it's been a packed episode. And of

course, the promising developments in orbital

transfer vehicles showing how companies are

innovating to make space travel more

efficient and accessible. It's clear

that the universe continues to offer endless

discoveries and technological advancements.

Avery: That's all the time we have for today's

Astronomy Daily. Thank you for joining us for

these cosmic discussions.

Anna: We hope you enjoyed diving into the latest

space and astronomy news with us. Be sure to

tune in next time for more interstellar

updates. In the meantime, keep looking up.

Bye

In this episode