S03E218: Voyager 1's Triumphant Return, SpaceX's Starship Advances, and Asteroid Ryugu's Microbial Surprise

0:00 Speaker 1: Welcome to Astronomy Daily, your source for the latest space

0:03 Speaker 1: and astronomy news. I'm your host, Anna, and today we've

0:06 Speaker 1: got an exciting lineup of stories to share with you.

0:08 Speaker 1: We'll be covering NASA's legendary Voyager one spacecraft returning to

0:12 Speaker 1: full operations after a communication issue, taking a peek at

0:16 Speaker 1: how astronauts celebrated Thanksgiving aboard the International Space Station, and

0:20 Speaker 1: getting updates on SpaceX's Starship program. We'll also explore fascinating

0:25 Speaker 1: new findings from asteroid Ryugu samples, and look at China's

0:29 Speaker 1: latest achievements in space, including new mapping satellites and cargo missions.

0:34 Speaker 1: Stay with us for all these stories and more, so

0:36 Speaker 1: let's get started. In an impressive display of engineering prowess,

0:41 Speaker 1: NASA has successfully brought Voyager one back to full operations

0:44 Speaker 1: following a concerning communication disruption last month. The veteran spacecraft,

0:50 Speaker 1: now an incredible fifteen point four billion miles from Earth,

0:53 Speaker 1: had unexpectedly switched from its primary X band radio transmitter

0:58 Speaker 1: to a weaker S band transmitter, temporarily halting the flow

1:02 Speaker 1: of valuable scientific and engineering data. The situation was particularly

1:07 Speaker 1: challenging given the vast distance involved it takes nearly twenty

1:11 Speaker 1: three hours for signals to make a round trip between

1:14 Speaker 1: Earth and Voyager one, but earlier this month, mission engineers

1:19 Speaker 1: managed to reactivate the x band transmitter, restoring data collection

1:24 Speaker 1: from all four of Voyager's operational science instruments. The issue

1:28 Speaker 1: stemmed from the spacecraft's fault protection system, which had deactivated

1:31 Speaker 1: the XPAN transmitter when a heater was activated. This protective

1:35 Speaker 1: measure is crucial for preserving power for critical operations, especially

1:39 Speaker 1: given Voyager one's extremely limited power supply. The spacecraft relies

1:44 Speaker 1: on electricity generated by the heat from decaying plutonium, which

1:48 Speaker 1: decreases by about four watts every year. What makes this

1:51 Speaker 1: achievement even more remarkable is that both Voyager spacecraft are

1:55 Speaker 1: operating with razor thin power margins. Over the years, the

2:00 Speaker 1: mission team has had to make difficult decisions, shutting down

2:03 Speaker 1: all non essential systems to keep these historic probes functioning.

2:07 Speaker 1: Despite operating in temperatures far colder than their original design specifications,

2:12 Speaker 1: the remaining science instruments continue to send back valuable data

2:16 Speaker 1: about interstellar space. After forty seven years of operation, Voyager

2:20 Speaker 1: one and its twin, Voyager two, remain the only human

2:23 Speaker 1: made objects operating in interstellar space. While their advanced age

2:28 Speaker 1: presents ongoing challenges for NASA's mission team, this latest recovery

2:32 Speaker 1: demonstrates the incredible durability of these pioneering spacecraft and the

2:36 Speaker 1: dedication of the engineers who keep them running. Now here's

2:41 Speaker 1: a story for our many listeners who like to celebrate Thanksgiving.

2:44 Speaker 1: The holiday season took on a whole new perspective this year,

2:47 Speaker 1: as four NASA astronauts aboard the International Space Station shared

2:51 Speaker 1: their unique Thanksgiving celebration with us here on Earth. Commander

2:55 Speaker 1: Sunny Williams, along with crewmates Don Pettitt, Nick Haig, and

2:59 Speaker 1: Butch Wilmore, beamed down a special message from their orbital home,

3:04 Speaker 1: giving us a glimpse into how they're marking this traditionally

3:06 Speaker 1: earthbound holiday. While most of us gathered around dining room tables,

3:11 Speaker 1: these astronauts celebrated with their own special feast, though perhaps

3:15 Speaker 1: not quite what you'd expect. Their Thanksgiving spread included some

3:19 Speaker 1: familiar holiday favorites like smoked turkey and butternut squash, along

3:24 Speaker 1: with some more unusual additions like Brussels sprouts and believe

3:27 Speaker 1: it or not, sardines, all carefully prepared for consumption in microgravity.

3:32 Speaker 1: The crew took a moment to reflect on what they're

3:34 Speaker 1: thankful for, with Butch Wilmore noting some uniquely astronauts specific blessings,

3:39 Speaker 1: including the ability to lay on the ceiling thanks to

3:41 Speaker 1: zero gravity. But they also shared more universal sentiments of gratitude,

3:46 Speaker 1: appreciation for family, friends, and the support of those back

3:50 Speaker 1: on Earth who keep them connected to home. Don Pettit

3:53 Speaker 1: touched on something many of us can relate to the

3:55 Speaker 1: challenge of being away from loved ones during the holidays,

3:59 Speaker 1: but he pointed out that modern technology allows them to

4:02 Speaker 1: stay connected virtually with family and friends, even from two

4:06 Speaker 1: hundred and fifty miles above Earth. It's a reminder that

4:09 Speaker 1: whether we're separated by continents or orbital planes, the spirit

4:13 Speaker 1: of togetherness that defines Thanksgiving finds a way to bridge

4:16 Speaker 1: the gap. Let's move on to some SpaceX news. SpaceX

4:21 Speaker 1: continues to make significant strides with its Starship program following

4:25 Speaker 1: the successful completion of Flight six. The aftermath of this

4:29 Speaker 1: latest test has kept teams busy at Starbase, with comprehensive

4:33 Speaker 1: inspection and repair work underway across various systems and structures

4:37 Speaker 1: in the immediate hours after the launch, engineers began examining

4:41 Speaker 1: the launch tower's chopsticks, the mechanical arms designed to catch

4:44 Speaker 1: returning vehicles. While these systems experience less stress than during

4:48 Speaker 1: flight five due to the absence of a booster landing attempt,

4:51 Speaker 1: the sheer power of all thirty three Raptor engines necessitated

4:55 Speaker 1: thorough checkups. The launch mount has received particular attention, with

4:59 Speaker 1: scaffold holding quickly installed around its upper section and the

5:02 Speaker 1: implementation of the dance floor, a movable platform that allows

5:06 Speaker 1: detailed inspection of the mount's lower sections. These rapid response

5:10 Speaker 1: protocols have become increasingly efficient with each launch, demonstrating SpaceX's

5:15 Speaker 1: growing expertise in postflight operations. Several systems showed signs of

5:20 Speaker 1: wear from flight six, including the booster quick disconnect system,

5:24 Speaker 1: which required repairs after being scorched during launch. The ship

5:27 Speaker 1: quick disconnect arm also sustained damage, with burnt umbilicals and

5:31 Speaker 1: notable charring on protective doors. Perhaps most surprisingly, the tower's

5:36 Speaker 1: weather and communications antenna experienced bending from launch forces, a

5:40 Speaker 1: first for the program. Looking ahead to flight seven, preparations

5:44 Speaker 1: are already well underway. Booster fourteen has completed its initial

5:48 Speaker 1: cryogenic testing and is being fitted with grid fins. Ship

5:52 Speaker 1: thirty three, designated as the first Block two ship to fly,

5:55 Speaker 1: has received its full complement of six Raptor two engines

5:58 Speaker 1: and is preparing for static five testing. The launch profile

6:02 Speaker 1: for Flight seven appears similar to its predecessors, with the

6:05 Speaker 1: ship targeted to land in the Indian Ocean near Australia.

6:09 Speaker 1: If current planning holds, we could see this next launch

6:11 Speaker 1: as early as January eleventh. Looking further ahead, SpaceX has

6:16 Speaker 1: ambitious plans for twenty twenty five, with environmental assessments underway

6:20 Speaker 1: to support up to twenty five launches from Starbase, including

6:23 Speaker 1: three night launches, though these currently won't include booster landing attempts.

6:29 Speaker 1: Next up today. In a fascinating development from the world

6:32 Speaker 1: of asteroid sample analysis, scientists have discovered that specimens from

6:36 Speaker 1: asteroid Reyugu became home to Earth based microorganisms after their

6:41 Speaker 1: return to our planet. This finding emerged during research led

6:45 Speaker 1: by Matthew Gene at Imperial College London, providing valuable insights

6:50 Speaker 1: into how terrestrial life forms interact with extraterrestrial materials. The

6:55 Speaker 1: sample in question collected by Jacksa's Hyabusa two spacecraft and

6:59 Speaker 1: reat turned to Earth in December twenty twenty, showed remarkable

7:03 Speaker 1: evidence of microbial colonization. Within just one week of exposure

7:07 Speaker 1: to Earth's atmosphere, scientists observed eleven microbes on the sample's surface.

7:13 Speaker 1: Even More impressively, this population exploded to one hundred and

7:17 Speaker 1: forty seven microorganisms just a week later. While initially intriguing,

7:22 Speaker 1: the team conclusively determined these weren't alien life forms. Their

7:26 Speaker 1: appearance only after the sample's exposure to Earth's atmosphere, combined

7:30 Speaker 1: with their rapid population growth, clearly identified them as terrestrial

7:34 Speaker 1: in origin. The microorganisms were likely bacteria, similar to the

7:38 Speaker 1: common basilla species found in soil and rocks. This discovery

7:42 Speaker 1: has significant implications for future space exploration, particularly regarding planetary

7:47 Speaker 1: protection protocols. It demonstrates just how readily Earth based microorganisms

7:52 Speaker 1: can colonize and survive on extraterrestrial materials, raising important considerations

7:57 Speaker 1: for both sample return missions and planet time cary exploration.

8:01 Speaker 1: The findings serve as a crucial reminder of the challenges

8:04 Speaker 1: we face in maintaining pristine conditions when studying materials from space.

8:09 Speaker 1: They also highlight the importance of careful contamination controls in

8:12 Speaker 1: future missions, especially as we continue our search for evidence

8:16 Speaker 1: of life beyond Earth. The research underscores an impressive, yet

8:20 Speaker 1: concerning truth. Earth's microorganisms are remarkably successful colonizers, capable of

8:26 Speaker 1: establishing themselves even on materials from millions of miles away.

8:30 Speaker 1: This adaptability could have profound implications for our understanding of

8:34 Speaker 1: how life might spread throughout the Solar System, whether naturally

8:38 Speaker 1: or through human exploration. China's space program continues to mark

8:43 Speaker 1: significant milestones with several notable developments. This month. The Tianzo

8:48 Speaker 1: seven cargo spacecraft, which had been serving China's Tiangong space

8:52 Speaker 1: station since January, completed its mission with a controlled re

8:56 Speaker 1: entry into Earth's atmosphere. After delivering crucial supple to the

9:00 Speaker 1: station and being loaded with waste materials, the spacecraft made

9:04 Speaker 1: its final descent on November seventeenth, providing US with spectacular

9:08 Speaker 1: footage of its fiery return through Earth's atmosphere. But before

9:12 Speaker 1: its dramatic finale, Tianzo seven had one last task to complete.

9:18 Speaker 1: The spacecraft deployed a small satellite called Bye zero eight,

9:22 Speaker 1: equipped with Earth observation capabilities and optical communication systems, adding

9:26 Speaker 1: another piece to China's growing space infrastructure. In a separate development,

9:31 Speaker 1: China has bolstered its satellite imaging capabilities with the successful

9:36 Speaker 1: launch of two new mapping satellites, The Seaway Gouging two,

9:40 Speaker 1: zero three and zero four satellites, lifted off aboard a

9:43 Speaker 1: long March two sea rocket from the Juquan Satellite Launch Center.

9:47 Speaker 1: These advanced satellites represent a significant upgrade to China's existing network,

9:52 Speaker 1: featuring high precision radar systems capable of producing detailed images

9:57 Speaker 1: regardless of weather conditions or time of day. What makes

10:00 Speaker 1: these satellites particularly noteworthy is their enhanced payload efficiency, which

10:05 Speaker 1: has improved by twenty five percent over previous versions. They're

10:09 Speaker 1: designed to support a wide range of applications, from natural

10:13 Speaker 1: resource management to urban safety and emergency response. The satellite's

10:18 Speaker 1: all weather imaging capabilities make them especially valuable for disaster management,

10:22 Speaker 1: allowing rapid assessment of natural disasters even under challenging conditions.

10:27 Speaker 1: These developments highlight China's growing sophistication in space operations, from

10:32 Speaker 1: maintaining a permanent space station to expanding its satellite infrastructure

10:36 Speaker 1: for both commercial and scientific purposes. It's another reminder of

10:40 Speaker 1: how space technology continues to evolve and advance across multiple

10:44 Speaker 1: nations and programs. While that brings us to the end

10:48 Speaker 1: of today's space news roundup, It's been another fascinating day

10:52 Speaker 1: of developments in space exploration and astronomy, from Voyager's impressive recovery,

10:56 Speaker 1: to groundbreaking discoveries from asteroid samples, and the continuing evolution

11:01 Speaker 1: of our space capabilities around the globe. I'm anna and

11:05 Speaker 1: I've enjoyed bringing you these stories today. If you want

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11:55 Speaker 1: Stories stars. The Soul Store has the soul mhm