WEBVTT

1
00:00:03.399 --> 00:00:08.880
Welcome to Bedtime Astronomy. Explore the
wonders of the cosmos with our soothing Bedtime

2
00:00:08.880 --> 00:00:14.720
Astronomy podcast. Each episode offers a
gentle journey through the stars, planets,

3
00:00:14.800 --> 00:00:19.800
and beyond, perfect for unwinding after
a long day. Let's travel through the

4
00:00:19.800 --> 00:00:23.519
mysteries of the universe as you drift
off into a peaceful slumber under the night

5
00:00:23.519 --> 00:00:35.759
sky. Galactic Gastronomy The evolution of
space food. In the early days of

6
00:00:35.840 --> 00:00:41.960
space exploration, the idea of astronauts
eating meals in the zero gravity environment of

7
00:00:42.000 --> 00:00:49.719
space was both a fascinating challenge and
a critical necessity. Space food has come

8
00:00:49.759 --> 00:00:56.240
a long way since the nineteen sixties, evolving from simple nutrient dense paste squeezed

9
00:00:56.280 --> 00:01:02.640
from tubes to gourmet meals enjoyed by
astronauts on the ear International Space Station ISS.

10
00:01:04.000 --> 00:01:08.599
This narrative takes you on a journey
through the history, development, and

11
00:01:08.719 --> 00:01:15.040
future of space food, highlighting the
ingenuity and dedication required to ensure that astronauts

12
00:01:15.079 --> 00:01:23.719
remain nourished and healthy while exploring the
cosmos. In the late nineteen fifties and

13
00:01:23.799 --> 00:01:29.239
early nineteen sixties, as the United
States and the Soviet Union raced to put

14
00:01:29.319 --> 00:01:37.239
humans into space, Scientists and engineers
faced a multitude of challenges. One of

15
00:01:37.280 --> 00:01:42.079
these was ensuring that astronauts could eat
and digest food in the microgravity environment of

16
00:01:42.120 --> 00:01:51.000
space. Early space food needed to
be compact, lightweight, and shelf stable,

17
00:01:51.439 --> 00:01:57.239
capable of withstanding the rigors of space
travel. The first American to eat

18
00:01:57.319 --> 00:02:02.879
in space was John Glenn during his
historic Mercury at List six mission in nineteen

19
00:02:04.000 --> 00:02:10.960
sixty two. Glen's meals were simple
purade, beef and vegetables, and aluminum

20
00:02:12.000 --> 00:02:19.400
tubes and a sugar cookie cube.
The food was not particularly appetizing, but

21
00:02:19.520 --> 00:02:27.319
it provided the necessary nutrients to keep
him energized during his brief mission. Glenn's

22
00:02:27.400 --> 00:02:32.719
successful consumption of food in space demonstrated
that eating and digesting in zero gravity was

23
00:02:32.800 --> 00:02:43.240
possible, painting the way for longer
missions and more sophisticated food options. As

24
00:02:43.319 --> 00:02:47.199
space missions grew more ambitious, so
did the need for a wider variety of

25
00:02:47.199 --> 00:02:55.080
foods. NASA and its partners began
developing freeze dried, and dehydrated foods,

26
00:02:55.479 --> 00:03:02.560
which were lightweight and had a long
shelf life. These foods could be rehydrated

27
00:03:02.599 --> 00:03:09.240
with water available on the spacecraft,
providing astronauts with a more palatable dining experience.

28
00:03:12.599 --> 00:03:16.000
By the time of the Apollo missions
in the late nineteen sixties and early

29
00:03:16.159 --> 00:03:23.560
nineteen seventies, astronauts were enjoying a
more diverse menu, including shrimp, cocktail,

30
00:03:23.000 --> 00:03:30.360
chicken stew, and even brownies.
The Skylab missions in the nineteen seventies

31
00:03:30.520 --> 00:03:39.159
marked a significant advancement in space food
technology. Skylab, the first American space

32
00:03:39.199 --> 00:03:45.479
station, was equipped with a galley
where astronauts could prepare and heat their meals.

33
00:03:46.800 --> 00:03:54.560
This allowed for more variety and better
tasting food. Skylab astronauts had access

34
00:03:54.639 --> 00:04:01.199
to over seventy different types of food
and beverages, including and thermostabilized meals,

35
00:04:01.599 --> 00:04:09.840
which were heat treated to destroy bacteria
and enzymes that could cause spoilage. The

36
00:04:09.879 --> 00:04:15.960
ability to heat meals significantly improve the
quality and enjoyment of space food, baking

37
00:04:15.000 --> 00:04:21.079
it more similar to what astronauts were
used to eating on Earth. The end

38
00:04:21.079 --> 00:04:27.920
of the Cold War and the beginning
of international collaboration in space exploration brought new

39
00:04:28.000 --> 00:04:35.480
challenges and opportunities for space food development. The International Space Station, which has

40
00:04:35.519 --> 00:04:42.639
been continuously occupied since two thousand,
serves as a laboratory for testing new food

41
00:04:42.720 --> 00:04:50.639
technologies and practices. With contributions from
space agencies around the world, the ISS

42
00:04:50.680 --> 00:05:00.279
has become a melting pot of culinary
innovation. One of the primary challenges of

43
00:05:00.319 --> 00:05:04.079
space food on the ISS is the
need for a balanced diet that meets the

44
00:05:04.160 --> 00:05:13.319
nutritional needs of astronauts. In the
microgravity environment of space, bone density and

45
00:05:13.399 --> 00:05:19.839
muscle mass can decrease, and the
immune system can be compromised. To combat

46
00:05:19.920 --> 00:05:27.560
these issues, space food must provide
adequate calories, vitamins, and minerals.

47
00:05:29.920 --> 00:05:35.000
Nutritionists and food scientists work closely with
astronauts to ensure that their diet is both

48
00:05:35.079 --> 00:05:44.480
nutritious and enjoyable. Space food on
the ISS comes in various forms, including

49
00:05:44.600 --> 00:05:53.519
freeze driede thermo stabilized, and irradiated
meals. Freeze dried foods are lightweight and

50
00:05:53.600 --> 00:06:00.160
retain their nutritional value, while thermostabilized
foods are heat treated to kill bacteria and

51
00:06:00.279 --> 00:06:09.399
extend shelf life. Irradiated foods are
treated with ionizing radiation to eliminate pathogens and

52
00:06:09.519 --> 00:06:17.079
parasites, ensuring food safety. These
methods allow for a wide variety of meals,

53
00:06:17.120 --> 00:06:24.759
including international dishes like Russian borsch,
Japanese miso soup, in Italian pasta.

54
00:06:27.120 --> 00:06:31.839
In addition to prepackaged meals, astronauts
on the ISS have access to fresh

55
00:06:31.879 --> 00:06:41.519
produce delivered on resupply missions. These
fresh foods, such as apples, oranges,

56
00:06:41.879 --> 00:06:46.439
and carrots, provide essential vitamins and
minerals and offer a welcome break from

57
00:06:46.439 --> 00:06:55.480
the monotony of prepackaged meals. However, fresh produce has a limited shelf life

58
00:06:55.519 --> 00:07:03.399
and must be consumed quickly. One
of the most significant advancements in space food

59
00:07:03.480 --> 00:07:10.959
technology has been the development of the
Space Food System's Laboratory at NASA's Johnson Space

60
00:07:11.000 --> 00:07:17.519
Center. This state of the art
facility is dedicated to researching and developing new

61
00:07:17.560 --> 00:07:26.600
food products and technologies for space missions. Scientists at the lab work on improving

62
00:07:26.639 --> 00:07:31.000
the taste, texture, and nutritional
content of space food, as well as

63
00:07:31.040 --> 00:07:40.240
developing new packaging materials and methods to
extend shelf life and reduce waste. The

64
00:07:40.319 --> 00:07:47.000
Space Food System's Laboratory also collaborates with
international partners and commercial companies to develop innovative

65
00:07:47.040 --> 00:07:55.920
solutions for future space missions. One
exciting area of research is the development of

66
00:07:56.000 --> 00:08:03.120
closed loop life support systems, which
recycle waste into food and other essential resources.

67
00:08:05.480 --> 00:08:09.120
These systems could be critical for long
duration missions to Mars and beyond,

68
00:08:09.480 --> 00:08:16.759
where resupply missions from Earth would be
impractical. In recent years, there has

69
00:08:16.839 --> 00:08:24.800
been a growing interest in growing food
in space. The Veggie Experiment on the

70
00:08:24.879 --> 00:08:31.000
ISS has demonstrated that it is possible
to grow fresh vegetables such as lettuce and

71
00:08:31.120 --> 00:08:39.080
radishes in the microgravity environment of space. These experiments are crucial for understanding how

72
00:08:39.200 --> 00:08:45.799
plants grow and develop in space,
as well as for developing the technologies needed

73
00:08:45.840 --> 00:08:54.840
to support long duration missions. Growing
food in space presents several challenges, including

74
00:08:54.960 --> 00:09:01.399
providing adequate light, water, and
nutrients, as well as dealing with the

75
00:09:01.440 --> 00:09:09.559
effects of microgravity on plant growth.
However, the benefits of fresh, home

76
00:09:09.600 --> 00:09:16.919
grown produce are significant. Fresh vegetables
not only provide essential nutrients, but also

77
00:09:18.000 --> 00:09:22.799
improve the psychological well being of astronauts, offering a sense of connection to Earth

78
00:09:22.879 --> 00:09:31.840
and a welcome diversion from prepackaged meals. Looking to the future, space agencies

79
00:09:31.879 --> 00:09:37.440
and private companies are exploring new ways
to produce and deliver food for space missions.

80
00:09:39.799 --> 00:09:45.120
One promising area of research is three
D printing technology, which could allow

81
00:09:45.240 --> 00:09:52.159
astronauts to create customized meals on demand. NASA has already tested a three D

82
00:09:52.360 --> 00:10:01.720
food printer that can produce pizza complete
with layers of dough sauce, and cheese.

83
00:10:01.240 --> 00:10:07.559
This technology could revolutionize space food,
providing astronauts with a greater variety of

84
00:10:07.639 --> 00:10:18.559
meals and reducing the need for bulky, prepackaged food supplies. Another exciting development

85
00:10:18.720 --> 00:10:22.279
is the potential use of lab grown
meat, also known as cultured meat,

86
00:10:22.720 --> 00:10:31.279
for space missions. Lab grown meat
is produced by cultivating animal cells in a

87
00:10:31.320 --> 00:10:39.440
controlled environment, eliminating the need for
traditional livestock farming. This technology could provide

88
00:10:39.519 --> 00:10:46.320
astronauts with a sustainable source of protein, while also addressing concerns about the environmental

89
00:10:46.360 --> 00:10:56.559
impact of meat production on Earth.
As humanity prepares for future missions to Mars

90
00:10:56.679 --> 00:11:03.759
and beyond, the challenges of space
food will become even more complex. A

91
00:11:03.840 --> 00:11:09.960
mission to Mars, for example,
could last for several years, requiring astronauts

92
00:11:09.000 --> 00:11:16.840
to be self sufficient in terms of
food production. Developing sustainable and reliable food

93
00:11:16.919 --> 00:11:24.240
systems will be critical for the success
of these missions. One potential solution is

94
00:11:24.279 --> 00:11:30.440
the concept of a space greenhouse,
which would allow astronauts to grow a variety

95
00:11:30.480 --> 00:11:37.799
of crops on Mars. A space
greenhouse would need to provide a controlled environment

96
00:11:37.919 --> 00:11:43.480
with adequate light, temperature, and
humidity, as well as protection from the

97
00:11:43.519 --> 00:11:50.759
harsh conditions on the Martian surface.
Researchers are already studying the feasibility of growing

98
00:11:50.879 --> 00:12:00.559
crops on Mars using simulated Martian soil
and other conditions. In addition to traditional

99
00:12:00.639 --> 00:12:07.519
crops, scientists are also exploring the
potential of growing algae and other microorganisms as

100
00:12:07.559 --> 00:12:13.720
a source of food for space missions. Algae are highly nutritious and can be

101
00:12:13.799 --> 00:12:20.039
grown in a variety of conditions,
making them a promising candidate for space food

102
00:12:20.080 --> 00:12:26.399
production. They can also be used
in enclosed loop life support systems, helping

103
00:12:26.440 --> 00:12:35.039
to recycle waste products and produce oxygen. From the early days of simple tube

104
00:12:35.080 --> 00:12:41.519
foods to the sophisticated meals enjoyed by
astronauts on the ISS, space food has

105
00:12:41.559 --> 00:12:48.759
come a long way. The challenges
of providing nutritious, enjoyable, and sustainable

106
00:12:48.799 --> 00:12:54.200
food for astronauts will continue to drive
innovation and research in the years to come.

107
00:12:58.919 --> 00:13:03.559
As we look to the future of
space exploration, the development of space

108
00:13:03.639 --> 00:13:07.399
food will play a crucial role in
enabling humans to live and work in space

109
00:13:07.519 --> 00:13:16.759
for extended periods. The technologies and
solutions developed for space missions could also have

110
00:13:16.879 --> 00:13:22.639
significant benefits for life on Earth,
from improving food production and sustainability to addressing

111
00:13:22.720 --> 00:13:31.399
global food security challenges. In conclusion, the narrative of space food is a

112
00:13:31.440 --> 00:13:39.240
fascinating journey through the history and future
of human space exploration. It highlights the

113
00:13:39.320 --> 00:13:46.159
incredible challenges and achievements of scientists,
engineers in astronauts as they work to ensure

114
00:13:46.200 --> 00:13:52.399
that humanity can thrive in the harsh
environment of space. From the humble beginnings

115
00:13:52.440 --> 00:13:58.679
of tube food to the cutting edge
technologies of three D printing and lab grown

116
00:13:58.720 --> 00:14:03.320
meat, space ffofod food continues to
evolve and inspire, offering a glimpse into

117
00:14:03.360 --> 00:15:01.720
the future of human exploration and the
possibilities that lie beyond our planet U