S03E25: Russia's Angara A5 Triumph & TESS's Starry Standstill

Welcome to Astronomy Daily, the podcast where the Cosmos comes into clearer view with

each episode. Today, we'll delve into a selection of compelling stories shaking up

the space sector. We'll discuss the Angara A five rockets lift off at the

third attempt, an event that marks a significant moment for Russia amidst its recent

space challenges. We'll also examine the sudden and mystifying shutdown of NASA's planet hunting

test satellite, Pondering the implications of this unexpected hiccup in our search for exoplanets

moving beyond Earth and its orbit. We'll explore innovative strategies to mitigate the ever

growing issue of orbital debris, an invisible threat to our sustained ventures into space.

We'll then turn back the cosmic clock, investigating the fascinating research using crater

analysis to uncover the ancient stories of moons orbiting our Solar System's giant planets,

and looking to future so lest you'll encounters, we'll give you a sneak peek

at isa's advanced preparations for the Juice missions fly by of Jupiter's enigmatic moon,

Callisto. Stay with us as we embark on this astronomical journey, unwrapping the

secrets of the universe and bringing the latest in space exploration and technology straight to

your ears. Exit the Astronomy DNI podcast. Turning our gaze to the skies

above the Russian Far East, the Angara A five rocket, Russia's aerospace hope,

roared into the Cosmos from the Vostokni Cosmodrome on its third scheduled launch attempt

after two scrubs due to pressing issues with a pressurizing system and the engine control

mechanism. The launcher's success echoed as a definitive statement of the nation's resiliency in

spacefaring pursuits. This milestone for the Angara A five are behemoth, engineered to

dispatch heavy payloads into low Earth orbit, marks a pivotal in a sequence of

rigorous testing needed to assert its reliability. The unveiling journey wasn't without its qualms,

as the Russian Space Agency ros Cosmos aired the endeavor live, capturing the

booster ascending to an altitude of two hundred and sixty eight kilometers within the first

thirteen minutes. What we witnessed was not just the rocket's fiery departure, but

also the manifestation of a long haul commitment. It's a path strewn with setbacks,

including last year's ill fated lunar lander, which met with the lunar surface

with an impact rather than with the soft landing. Planned development of the Angara

A five has been painstaking, with a timeline punctuated by delays and spanning a

decade riddled with only three prior liftoffs, one of which did not reach full

fruition. Now, the successful deployment of a test payload casts favorable light on

the prospect of Moscow's ambition a new bastion in orbit to rival the legacy of

the International Space Station. The implications run deep. The prolific Angara A five

is charting the course to elevate Russia's galactic blueprint, foreseeably playing a role in

delivering the foundational blocks for a forthcoming orbital platform. As we consider this recent

flight, we ponder not just the engineering triumph and the fiery spectacle of launch.

We look toward an era where resoluteness and innovation may lead Ross Cosmos to

new celestial frontiers. The saga of Angara A five becoming a crown jewel in

their cosmic odyssey. The cosmos has its mysteries, and one of NASA's key

tools in uncovering them has hit a minor snag. The Transiting Exoplanet Survey Satellite,

known as TESS, has temporarily paused its vigilant search of the heavens due

to an unexpected shift into safe mode. It's an unexpected twist in the mission's

otherwise smooth journey since SpaceX lofted it to the stars in twenty eighteen. As

NASA's frontline planet hunter, TESS has the vital job of scouting the skies for

exoplanets orbiting distant stars, seeking worlds that resemble our own Earth. The temporary

shutdown occurred as tests was performing routine operations, a hiccup in outer space that

NASA's team is investigating to restore full functionality in the immediate future. Despite this

pause, TESS our cosmic century remains in good health, poised to re engage

in its stellar senses, taking duties shortly. What makes tess's work so fascinating

is its quest for planets that could potentially host life, Building on the legacy

of its predecessor, the renowned Kepler Telescope, with a gaze that spans an

area of the sky over four hundred times larger than that watched by Kepler.

Tests has been instrumental in identifying over twenty four hundred candidate exoplanets, including a

pair of super Earths a mere thirty three light years away. During its mission,

Tess has even contributed unexpected bonuses beyond its primary purpose. It caught sight

of a brilliant gamma ray burst the violent birth throws of a black hole,

highlighting the satellite's versatile role in our understanding of the universe. The temporary shutdown

has certainly introduced suspense into Tess's narrative, a reminder of the fragility and complexity

entailed in our explorations of the cosmos. Yet its track record, a treasury

of knowledge about distant planets and the grandeur of space time events, assures us

that Tests is more than a mere machine. It's a bridge to the vast

potential of human discovery, a searchlight in the dark, charting paths to new

worlds and universal secrets hitherto beyond our grasp, And so we await with eager

anticipation the reawakening of Tests to continue its grand survey of the galactic seas,

sailing once more under the banner of curiosity and wonder. As we venture deeper

into the cosmos, the issue of space debris becomes more pressing. Today,

let's discuss some groundbreaking methods being put into practice to curb this growing concern,

particularly concerning satellite re entry designs. Engineers and scientists are keenly aware that the

remnants of our endeavors circling the Earth pose risks both in space and upon re

entry. At the University of Stuttgart's High and Healpi Flow Diagnostics Group, remarkable

tests are unfolding Here. A reaction wheel, a device pivotal for adjusting satellite's

orientation, faces a rigorous trial within a plasma wind tunnel. This tunnel replicates

the severe heat and speed of atmospheric re entry while the wheel itself is rotated,

simulating the chaotic return journey of a satellite. Colin's Aerospace in Germany has

been at the forefront of these endeavors, making significant amendments to their Teldick's reaction

wheel. Their aim to enhance what's known as its demis ability, a term

coined for ensuring the satellite can disintegrate in a controlled manner during re entry,

thereby eliminating the possibility of space junk surviving its earthbound dearycent. This innovative approach

to design for demise, or D four D, was the focal point of

this year's Space Mechanisms Workshop at the European Space Agency's STEC Technical Center. This

gathering, which brought together a constellation of over one hundred and thirty industry and

academic experts, zeroed in on the urgency to perfect satellite mechanisms that vanish completely

upon re entering our atmosphere. The consequences of neglecting such technologies are stark,

conjuring memories of past incidents where falling debris has come perilously close to causing casualties.

It's imperative, therefore, that we consider either guiding the satellite fragments to

ensure a reduced ground footprint or ensuring total disintegration where possible. New initiatives are

already in motion. ESA and other industry heavyweights are developing spacecraft with the express

purpose of capturing and safely deorbiting defunct satellites. This proactive stance underscores how essential

specialized mechanisms will be in maintaining the long term sustainability of our orbital environments.

As the frequency of satellite launches grows, it's ever important to adhere to stringent

debris mitigation regulations. The safety of our increasingly busy skies isn't just a matter

of outer space. It's about protecting the blue skies of our home planet as

well. The Astronomyduly five cats. The dating of moons within our Solar System

is an intricate puzzle that scientists are continuously striving to piece together. As the

celestial dance of moons around Jupiter, Saturn, Uranus, and Neptune carries on,

researchers look to the time etched surfaces of these moons to unravel secrets of

their age and origin. At the core of this research is the technique known

as crater analysis. The craters that spangle the moonscapes are not merely features for

stunning visuals, but act as historical records. By counting these in impact craters,

scientists can estimate the age of the Moon's surfaces. In the early Solar

System, a frenetic ballet of cosmic debris created a tempestuous environment when Neptune flung

planetesimals through the Solar System. It set off a chain reaction of bombardments,

the evidence of which is clearest on the outer moons. A recent study spearheaded

by William Botka from the Southwest Research Institute has made headway in dating the surfaces

of twenty six moons. Through meticulous modeling of bombardment frequencies and their resulting craters,

The team aims to understand the timeline of impacts and the resultant reshaping of

these celestial bodies. Their findings tell a tale of obliteration and rebirth. Early

massive impacts have vanished lost to subsequent extensive resurfacing processes. For instance, on

moons like Iapetus and Oberon, we see surfaces that were formed only a few

million years into the onslaught of interplanetary collisions. Larger moons present even younger skin,

masquerading the true extent of their ancient scars. This research illuminates and endorses

the prevailing theory that larger moons likely coalesced from circumplanetary discs akin to smaller scale

planetary systems. Yet the absence of evidence from the tumultuous infancy of the Solar

System means a piece of the puzzle remains elusive. In pursuit of these enigmatic

origins, future space missions equipped with advanced instruments are set to cast further light

upon these distant realms. By harnessing gravity measurements and continuing the laborious task of

crater counting, we hope to peel back layers of cosmic history to a time

shortly after the dawn of our Solar System. In this endless journey through time

and space, each crater holds the potential to unlocked chapters of a narrative that

spans billions of years. Beneath the silent gaze of those celestial sentinels our Solar

System's moons. As we journey seven years into the future, the European Space

Agency's Juice mission orbits into our conversation, now envisage the year two thirty thirty

one, a spacecraft named Juice saws past Jupiter's moon Callisto, a spectacle that

promises to unveil the secrets of this created alien landscape. Teams tucked away at

ESA's Mission Control have already set this celestial dance into motion, despite it being

years ahead of us picture this. Operators, with their minds cast far across

the Solar System, maneuver a terrestrial replica of juice. An engineering model here

on Earth, they simulate the action's juice will take millions of kilometers away,

testing its autonomous navigation software to perfection. This preparation is crucial, as the

immense distance to the Jupiter System means there's no time for a real time intervention

from ground control. Think of Callisto, this sphere of mystery floating in Juice's

path. With the vast communication delay, the juice probe must rely on its

eyes and brain to lock its instruments onto features on Callisto, rotate and maintain

a pointed gaze, all autonomously. This would entail the spacecraft detecting where Callisto

appears before it, identifying its surface landmarks, and adjusting its position accordingly to

keep its senses trained on them, all while slicing past at tremendous speeds.

This isn't just a matter of sophisticated programming, though, It's about preparing for

scenarios where the difference between monumental discovery and a fruitless pass could hinge on fractions

of a degree. The ESA team's meticulous planning and execution must also ensure that

during this delicate operation, nothing is left to chance. In this instance,

it's not hyperbole to say that ESA's mission specialists are rehearsing a ballet of cosmic

proportions where every spin, every leap, every arc must be orchestrated without the

conductor's baton. So when the day arrives for Juice to embrace Callister's gravitational pull,

we back on Earth can hope to receive a trophy of scientific insights that

have been years in the making, and that esteemed listeners is how the future

of space exploration is mediculously charted from the confines of our blue planet. As

we draw to a close on today's journey through the Cosmos, I want to

take a moment to extend a heartfelt thank you for joining us here at Astronomy

Daily the podcast. Your curiosity and passion for the stars and beyond make this

exploration through the universe all the more exciting. If you're thirsty for more stellar

content, I invite you to visit our website at Astronomy Daily dot io.

There you'll find a treasure trove of past episodes, ripe for binging and bursting

with astronomical wonders. Go ahead, dive into the archive and relive the highlights

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your eyes to the skies and your mind wide open to the wonders above.

Clear skies, and godspeed. This is your host, Charlie signing off exits

the Astronomy Danie Podcast.

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