SpaceX's Starship Milestone, Blue Origin's Lunar Leap, and Titan's Chemical Secrets

Anna: Welcome to Astronomy Daily. I'm your host,

Anna, bringing you the pulse of our cosmic

frontier. Today, we're diving into a

constellation of exciting developments that

showcase humanity's relentless pursuit of the

stars. The space industry never sleeps,

and this week proves it. With a flurry of

activity that spans from Earth's atmosphere

to the mysterious shores of Titan,

we've got a packed episode exploring

breakthroughs that could reshape our

understanding of the universe and our place

within it. Let's get into it then.

First up today, the Federal Aviation

administration has given SpaceX the green

light for its next starship launch, providing

final approval on May 22 for what will be

the ninth Test flight of this massive

spacecraft. This comes after a careful review

of the mishaps that occurred during previous

launch attempts. For those who haven't been

following Starship's development journey,

this approval represents a significant

milestone in SpaceX's ambitious programme to

develop the world's largest and most powerful

rocket system. The FAA's decision

indicates they're satisfied with SpaceX's

response to the problems encountered during

Flight 8 back in March. During that previous

launch, Starship's upper Stage experienced

what SpaceX described as an energetic event,

a technical way of saying something went

dramatically wrong. This event caused the

loss of several Raptor engines and ultimately

resulted in the vehicle losing control m the

spacecraft eventually re entered Earth's

atmosphere over the Caribbean. What's

particularly noteworthy is that this failure

looked remarkably similar to what happened

during Flight 7 in January. Despite the

ongoing mishap investigation into Flight 8

not being officially closed, the FAA

determined that SpaceX has satisfactorily

addressed the causes of the mishap and that

the vehicle can safely return to flight. This

approach mirrors what the agency did for

Flight 8, essentially concluding that the

launch does not pose a safety risk to the

public. One significant change for Flight 9

involves the expansion of aircraft hazard

areas, or AHAs. These are

airspace closures designed to prevent any

debris from a launch failure from potentially

hitting aircraft. An environmental review

concluded that these safety zones needed to

be considerably expanded based on data from

the previous launches, which suggested a

higher probability of failure than than

originally estimated. The numbers here are

striking. The aha for Flight 9 will extend

east from SpaceX's Starbase facility in South

Texas for approximately 1,600

nautical miles. That's nearly 3,000

kilometres past the Straits of Florida,

including the Bahamas and Turks and Caicos

Islands. By comparison, the

hazard area for Flight 8 extended for just

885 nautical miles, or about

1,640 kilometres.

Another factor contributing to these expanded

safety measures is SpaceX's plan to use a

previously flown super heavy booster on the

upcoming mission. This marks the first time

they've attempted to reuse a super heavy

booster, adding another layer of complexity

and potential risk to the mission. While

SpaceX hasn't announced an official launch

date yet, temporary flight restrictions

published by the FAA shortly after the

approval announcement indicate they're

working toward a launch as soon as May 27th.

As always with experimental rockets of this

scale, that date remains fluid and dependent

on both technical readiness and weather

conditions. The stakes remain incredibly

high for Starship as the vehicle

designed to eventually carry humans to the

moon as part of NASA's Artemis programme and

later to M Mars. Each test flight provides

critical Data that moves SpaceX closer to

achieving these ambitious goals, but the

path to creating a fully reusable super heavy

lift launch system has proven challenging,

with each test revealing new hurdles to

overcome.

And in SpaceX competitor news today, Blue

Origin is making bold strides in the lunar

exploration arena, with plans to attempt

landing an uncrewed prototype of its human

landing system on the moon's south pole

before the end of this year. This ambitious

timeline was revealed by John Colouris, Blue

Origin's senior vice president of lunar

permanence, as the company accelerates its

efforts to become a key player in NASA's

Artemis programme. Blue Origin's lunar

lander is one of two systems being developed

in partnership with NASA to support crewed

landings on the moon. While SpaceX

secured the first two flight service

contracts for NASA's Artemis 3 and 4 missions

with its Starship variant, Blue Origin system

has been selected for the Artemis 5 mission,

establishing a competitive dual provider

approach to lunar transportation. The

company's Mark 1 Lander, which is scheduled

for this year's demonstration mission, boasts

impressive capabilities. It's designed to

deliver nearly 3.9 tonnes of payload to

any location on the lunar surface. This

capacity significantly outperforms the small

robotic landers that NASA is developing under

its commercial Lunar Payload Services

contracts, which can carry up to about one

tonne. At the heart of the Mark 1 is

the BE7 engine, a sophisticated

propulsion system that runs on liquid oxygen

and liquid hydrogen. Assembly of the flight

unit is nearly complete and is expected to be

shipped to Johnson Space Centre in Houston

within six weeks for thermal vacuum chamber

testing. After completing those tests, the

engine will be transported to Cape Canaveral

for integration with the lander before

launching aboard Blue Origin's new Glenn

rocket. Beyond testing technologies and

operations for future Mark 2 vehicles, the

Mark 1 mission will carry scientific payloads

for both NASA and commercial customers.

One key NASA experiment will measure BE7

plume impingement on the lunar surface,

providing valuable data about how rocket

exhaust interacts with lunar regolith.

Colloris also unveiled an updated design

for the system's transporter module, which is

a critical component of Blue Origin's lunar

architecture. This vehicle is designed to

launch separately on a new Glenn rocket and

be refuelled in low Earth orbit using

excess propellant from the rocket's upper

stage. The transporter would then travel to

lunar orbit to refuel a waiting Blue Origin

lander before a crew arrives via NASA's Space

Launch System and Orion capsule.

The transporter's capabilities extend beyond

lunar missions, with the ability to transport

roughly 110 tonnes from Earth orbit to

lunar orbit, or up to 33 tonnes to Mars

orbit. This opens up the solar system,

Kolluris noted, highlighting the company's

vision beyond just moon landings, Blue

Origin is also making significant progress in

addressing one of the biggest challenges for

long duration space propellant storage.

A ground demonstration of zero boil off

cryogenic propellant storage is currently

underway in Washington State. By June, the

company expects to demonstrate consistent

storage of cryogenic hydrogen and oxygen as

storable propellants, a technological

breakthrough that would be the first of its

kind at this scale. This lunar demonstration

mission represents a crucial step in Blue

Origin's journey to becoming a major player

in deep space exploration, creating a

competitive landscape that may ultimately

benefit NASA's ambitious plans to establish

a sustainable human presence on the moon.

Next up, let's move on out to Saturn. When it

descends through the thick golden haze on

Saturn's moon Titan, NASA's Dragonfly

rotorcraft will find itself in a world that

is simultaneously alien and strangely

familiar. This car sized flying

vehicle, scheduled to launch no earlier than

2028, will explore a frigid

realm where dunes wrap around the equator,

clouds drift across the skies, rain

drizzles down and rivers flow, forming

canyons, lakes and seas. But the

familiarity ends there. At temperatures of

-292 degrees Fahrenheit,

Titan's Dune Sands aren't made of silicate

grains like on Earth, but of organic

material. The rivers, lakes and seas don't

contain water, but liquid methane and ethane.

This frigid world is laden with organic

molecules, making it a unique laboratory for

studying the chemical processes that may have

led to life on our planet. What makes

Dragonfly's mission so fascinating is that it

isn't looking for life itself on Titan. It's

investigating the chemistry that came before

biology here on Earth. As Zibby

Turtle, principal investigator for Dragonfly

and a planetary scientist at Johns Hopkins

Applied Physics Laboratory, explains, On

Titan, scientists can explore the chemical

processes that may have led to life on Earth

without life itself Complicating the picture

on our planet, life has reshaped nearly

everything, Burying its chemical forebears

beneath aeons of evolution. Even today's

simplest microbes Rely on complex chemical

reactions to exist. The transition from

simple to complex chemistry before jumping to

biology Remains one of science's greatest

mysteries. With many steps still unknown,

Titan offers a unique opportunity to uncover

some of these missing pieces. What makes

Titan so valuable is that it's an untouched

chemical laboratory where all the ingredients

for known lifeorganic molecules,

liquid water and energy sources have

interacted in the past. Before NASA's

Cassini Huygens mission, researchers didn't

fully appreciate just how rich titin is in

organic molecules. Data revealed a molecular

smorgasbord ethane, propane,

acetylene, acetone, vinyl,

cyanide, benzene and many more compounds.

These molecules fall to Titan's surface,

forming thick deposits on the moon's ice

bedrock. Scientists believe life related

chemistry could begin there, particularly if

given some liquid water, such as from an

asteroid impact. This is why selk crater,

a 50 mile wide impact site, is a key

destination for Dragonfly. The impact that

formed Selkirk melted the icy bedrock,

Potentially creating a temporary pool that

could have remained liquid for hundreds to

thousands of years under an insulating ice

layer. If natural antifreeze like ammonia

were mixed in, the pool could have stayed

unfrozen even longer, Blending water with

organics and minerals from the impactor to

form what scientists describe as a primordial

soup. As Sarah Horst, an atmospheric

chemist and co investigator on Dragonfly's

science team, puts it, it's essentially a

long running chemical experiment. That's why

Titan is exciting. It's a natural version of

our origin of life experiments. Except it's

been running much longer and on a planetary

scale. Selk Crater represents what

scientists call a, natural laboratory,

One that may hold crucial clues to life's

origins. When researchers try to understand

how life began on Earth, they face a

fundamental challenge. Time. For decades,

scientists have simulated early Earth

conditions in labs, creating prebiotic soup

mixtures of water and simple organic

compounds, Then jump starting reactions with

electrical shocks to mimic lightning. But

these experiments typically last weeks,

months, or at most a few years. The

melt pools at Salt Crater, however,

potentially persisted for tens of thousands

of years. While this is still shorter than

the hundreds of millions of years it took for

life to emerge on Earth. Models suggest it

could be sufficient time for critical

chemical processes to unfold. As Horst

explains, We don't know if Earth life took so

long because conditions had to stabilise or

because the chemistry itself needed time. But

models show that if you toss Titan's organics

into water, tens of thousands of years is

plenty of time for chemistry to happen. This

is why Dragonflies exploration of Selk is so

important. Landing near the crater, the the

rotorcraft will fly from site to site,

analysing the surface chemistry to

investigate what could be the frozen remains

of prebiotic chemistry in action. The

impact that formed Selk created ideal

conditions for this chemistry, melting water

ice and potentially mixing it with organic

compounds already present on Titan's surface.

The Dragonfly mass spectrometer, or DRAMS,

will be crucial to this investigation.

Developed by NASA's Goddard Space Flight

Centre with a key subsystem from CNS,

DRAMS will search for indicators of complex

chemistry rather than specific molecules.

We're not looking for exact molecules, but

patterns that suggest complexity, explains

Morgan Cable, a research scientist at NASA's

Jet Propulsion Laboratory and co investigator

on Dragonfly. On Earth, for instance,

amino acids, fundamental building blocks of

proteins, appear in specific patterns. A

world without life would mainly produce the

simplest amino acids and form fewer complex

ones. Titan itself isn't considered habitable

in the conventional sense. It's far too cold

for life's chemistry as we understand it,

with no liquid water on the surface where

organics and energy sources exist. But

this is precisely what makes it valuable for

understanding life's origins. If

Dragonfly finds evidence that complex

chemistry did unfold in silk craters,

temporary melt pools, it strengthens the case

that life could emerge relatively easily

given the right ingredients and conditions.

Conversely, if complex chemistry didn't

develop despite favourable conditions and

ample time, it might suggest that life's

emergence requires additional factors we

haven't yet identified, potentially making it

rarer in the universe than we thought.

M Meanwhile, back here on Earth, in

a significant shift from traditional space

business models, Dawn Aerospace has now begun

taking orders for its Aurora spaceplane, a

ah, remarkable vehicle designed to carry

small payloads on suborbital flights. This

New Zealand based company announced on May 22

that the Aurora is capable of carrying six

kilogrammes of payload to an altitude of 100

kilometres, with first deliveries projected

for 2027. What makes Dawn's

approach particularly innovative is their

business model. Rather than operating the

vehicles themselves and selling launch

services, as most space Companies do. Dawn

Aerospace is selling the actual spaceplanes

to customers who will then operate them

independently. This mirrors the commercial

aviation industry, where Boeing and Airbus

don't fly passengers, they sell aircraft to

airlines who handle operations. As Stefan

Powell, Dawn Aerospace's chief executive,

explained during a recent webinar organised

by the Global Spaceport alliance, there are

many out there who would love to have this

capability and be willing to pay for it, but

they simply can't get their hands on it. It's

not for sale. He contrasted this with

commercial aviation's approach, noting that

the airline model presents us with a far more

scalable model for transportation and one

that we would really like to draw on. The

Aurora itself has been in testing for several

years with its Mark 2 version reaching

supersonic speeds for the first time last

November, achieving Mach 1.12

and reaching an altitude of 25.1 kilometres.

But what's particularly noteworthy about this

vehicle is its fundamental design philosophy.

This is an aircraft with the performance of a

rocket, not a rocket with wings, Powell

emphasised. That is to say, reliability,

reusability and ultimately scalability are

not afterthoughts, but baked in from day one.

To enable this airline model, the upcoming

suborbital version of Aurora will feature

increased propellant capacity and engine

thrust, plus reaction control system

thrusters for manoeuvrability outside the

atmosphere. Remarkably, these

enhancements will be incorporated within the

same external dimensions as the previous

version. Maintaining its sleek

aircraft like profile, Dawn

Aerospace expects the first suborbital Aurora

to be ready for flight testing within 18

months, with a test programme lasting

approximately six to nine months. These

flights will begin at lower altitudes, but

rapidly progress to higher ones,

demonstrating the vehicle's full capabilities

before customer deliveries begin. Looking

at Aurora's capabilities in more detail, the

spaceplane offers an impressive flight

profile. On a typical suborbital mission,

Aurora will take off from a conventional

Runway and immediately begin a steep

vertical ascent. It will reach speeds of Mach

3.5, more than three times the speed of sound

and provide approximately three minutes of

true microgravity at the peak of its

trajectory. The entire flight from

takeoff to landing takes just one half an

hour, with most of that time spent gliding

back to a Runway landing after re entry.

Powering this remarkable vehicle is an engine

using 90% hydrogen peroxide and

kerosene D60 propellants.

When fully loaded, the Aurora weighs just 450

kilogrammes and and requires only a 1000

metre Runway for takeoff, making it

accessible to numerous existing airports and

spaceports worldwide. One of

Aurora's Most compelling features is its

rapid reusability. Dawn has already

demonstrated the ability to prepare the

vehicle for another flight within six hours.

And Powell confidently stated that a four

hour turnaround time should be achievable.

That would make the first aircraft ever the

first vehicle of any kind actually to fly

above the Karman line twice in one day, he

noted. On the business side, Dawn

Aerospace is now taking orders for Aurora,

with deliveries starting in 2027.

While the company hasn't publicly disclosed

pricing, Powell suggested that a per flight

operational cost of around $100,000 is

absolutely tenable, with prices

potentially higher for more customised

mission profiles. Each Aurora is

designed for up to 1,000 flights over its

lifetime, with potential revenue per vehicle

reaching approximately $100 million.

The market interest is already evident. Dawn

has secured several customers for test

flights of the mark two Aurora, including

three prestigious universities, Arizona

State, Cal Poly and Johns Hopkins, as

well as ScoutSpace, a company developing

space domain awareness services. Powell

believes there's substantial demand for

suborbital flight even with Aurora's modest

payload capacity, particularly in fields like

microgravity, life sciences research,

semiconductor development and defence payload

testing. This innovative approach has been

enthusiastically welcomed by the Global

Spaceport alliance, whose chairman George

Neild pointed out, With a small reusable

system that can operate from a standard

Runway, there's no reason why any spaceport

with a Runway couldn't provide regular access

to to space. For numerous

underutilised spaceports worldwide,

Aurora could be the catalyst that finally

brings their facilities into regular

operational use.

Finally today, an innovation worth noting.

Multimessenger astronomy represents one of

the most exciting frontiers in our

understanding of the cosmos. It's the science

of capturing different types of signals, both

gravitational and electromagnetic, from the

same cosmic event. But to fully realise this

potential, we need eyes constantly watching

the entire sky. This is where the high

energy Rapid Modular Ensemble of

Satellite's Pathfinder Mission, or Hermes pf,

comes into play. Successfully launched in

March and currently undergoing commissioning,

Hermes PF aims to solve a fundamental

challenge in multi messenger astronomy when

catastrophic cosmic events occur, like black

hole mergers or neutron star collisions.

Gravitational wave detectors can sense these

disturbances in spacetime, but they struggle

to pinpoint exactly where the signal

originated. The Hermes PF solution

is elegantly simple, yet technologically

sophisticated. Deploy six small

3U cubesats that work together to

monitor the entire sky for high energy

bursts. When a cosmic event releases a

burst of gamma rays or other high energy

radiation, multiple satellites in the

constellation detect it. By triangulating

these signals with precise timing data, the

system can identify the source location to

within 1 degree of accuracy, A remarkable

feat that dramatically narrows the search

area for astronomers. Each CubeSat in the

Hermes PF system carries 60

GaGC scintillator crystals and 12

silicon drift detectors, allowing them to

capture a wide spectrum of energy signatures

with exceptional temporal resolution.

What's particularly clever about this

approach is that the satellites primarily use

commercial off the shelf components rather

than expensive radiation hardened parts,

making the entire system more cost effective.

The technology isn't entirely untested

either. A similar sensor system has been

operating on another mission called spirit

since 2023. Though it has faced some

challenges with cooling systems and data

downlink capabilities. The full six

satellite Hermes PF constellation aims to

overcome these limitations and provide truly

comprehensive sky coverage. This capability

will become increasingly crucial as next

generation gravitational wave detectors like

the Einstein telescope come online in the

coming years. These advanced detectors are

expected to identify up to 100 gravitational

wave events annually, 10 times more than

current systems can detect. Without something

like Hermes PF wave watching for the

electromagnetic counterparts to these events,

we'd be missing half the picture. Imagine

trying to understand a thunderstorm by only

feeling the vibrations of thunder, but never

seeing the lightning. Multimessenger

astronomy allows us to both see and feel

cosmic catastrophes, giving us complementary

data that reveals the underlying physics in

unprecedented detail. The

Hermes PF mission stands to transform

our understanding of these extreme events by

ensuring we never miss the flash of cosmic

lightning that accompanies the thunder of

gravitational waves.

As we've explored today, we're witnessing a

remarkable convergence of space technologies

that are opening new windows into our

universe from SpaceX's persistent

refinement of starship. Despite setbacks to

Blue Origin's bold lunar ambitions, these

commercial endeavours are reshaping how we

access space. Both companies are

crucial partners in NASA's Artemis programme,

working toward returning humans to the lunar

surface with capabilities far beyond what was

possible during the Apollo era.

Meanwhile, scientific missions like Dragonfly

represent some of the most ambitious

exploration we've ever attempted. By

sending a rotorcraft to explore Saturn's moon

Titan, we're not just visiting another world.

We're potentially unlocking the chemical

history that preceded life on Earth. Dawn

Aerospace's Aurora spaceplane demonstrates

yet another innovation in our approach to

space access. By selling spacecraft rather

than just launch services, they're

democratising access to suborbital space in a

way that mirrors how commercial aviation

revolutionised earthbound travel last

century. Perhaps most exciting is how the

Hermes PF mission connects to everything else

we've discussed. As these cubesats

monitor the sky for high energy events.

They'll complement gravitational wave

detectors, creating a more complete picture

of cosmic catastrophes. Collectively,

these advancements aren't just isolated

technological achievements. They represent

humanity extending its senses further into

the cosmos. We're building tools that may

answer some of our most profound questions.

How did life begin? Are we alone? What

fundamental forces shape our universe?

Thank you for joining me on Astronomy Daily.

I'll be back tomorrow for yet another episode

where we'll take a look at more innovations.

Until then, keep looking up. The sky is

full of wonders waiting to be discovered. I'm

Ana. signing off,

In this episode