WEBVTT

1
00:00:03.399 --> 00:00:07.719
<v Speaker 1>Welcome to Bedtime Astronomy. Explore the wonders of the cosmos

2
00:00:07.759 --> 00:00:12.279
<v Speaker 1>with our soothing Bedtime Astronomy podcast. Each episode offers a

3
00:00:12.359 --> 00:00:16.320
<v Speaker 1>gentle journey through the stars, planets, and beyond, perfect for

4
00:00:16.399 --> 00:00:20.239
<v Speaker 1>unwinding after a long day. Let's travel through the mysteries

5
00:00:20.239 --> 00:00:22.440
<v Speaker 1>of the universe as you drift off into a peaceful

6
00:00:22.480 --> 00:00:30.519
<v Speaker 1>slumber under the night sky. Cube SATs revolutionizing space exploration

7
00:00:30.839 --> 00:00:37.200
<v Speaker 1>one tiny satellite at a time. The development of cube

8
00:00:37.200 --> 00:00:41.960
<v Speaker 1>SATs represents a significant shift in the landscape of space exploration,

9
00:00:42.560 --> 00:00:49.159
<v Speaker 1>allowing more accessible and cost effective missions be Small satellites,

10
00:00:49.600 --> 00:00:53.240
<v Speaker 1>measuring as little as ten centimeters per side and weighing

11
00:00:53.280 --> 00:00:58.280
<v Speaker 1>around a kilogram, were initially conceptualized as educational tools, but

12
00:00:58.399 --> 00:01:02.479
<v Speaker 1>have since evolved into a cessential components of both governmental

13
00:01:02.600 --> 00:01:08.719
<v Speaker 1>and commercial space programs. Their rise in popularity stems from

14
00:01:08.760 --> 00:01:13.599
<v Speaker 1>their compact size, which makes them relatively inexpensive to design,

15
00:01:14.079 --> 00:01:20.359
<v Speaker 1>build and launch. As a result, CubeSats have opened new

16
00:01:20.439 --> 00:01:26.040
<v Speaker 1>opportunities for universities, private companies, and even developing nations to

17
00:01:26.120 --> 00:01:30.480
<v Speaker 1>participate in space missions that would have been prohibitively expensive

18
00:01:30.799 --> 00:01:35.959
<v Speaker 1>just a few decades ago. The increasing reliance on these

19
00:01:36.079 --> 00:01:43.359
<v Speaker 1>tiny spacecraft has fostered a dynamic and innovative ecosystem of engineers, scientists,

20
00:01:43.359 --> 00:01:46.719
<v Speaker 1>and entrepreneurs who are pushing the boundaries of what can

21
00:01:46.760 --> 00:01:52.519
<v Speaker 1>be achieved in orbit and beyond. In the late nineteen nineties,

22
00:01:53.040 --> 00:01:57.920
<v Speaker 1>cube SATs were developed by professors Jeordi Puigswarri from California

23
00:01:58.000 --> 00:02:04.799
<v Speaker 1>Polytechnic State University and Bob Twigs from Stanford University. They

24
00:02:04.879 --> 00:02:08.960
<v Speaker 1>sought to provide their students with practical experience in designing

25
00:02:09.120 --> 00:02:15.479
<v Speaker 1>and launching satellites. The simplicity and standardization of cube SAC

26
00:02:15.560 --> 00:02:20.080
<v Speaker 1>components allowed students to build functioning spacecraft at a fraction

27
00:02:20.159 --> 00:02:24.039
<v Speaker 1>of the cost and time it took to develop traditional satellites.

28
00:02:25.960 --> 00:02:30.159
<v Speaker 1>The primary innovation behind cube SATs was their modular design.

29
00:02:32.159 --> 00:02:36.319
<v Speaker 1>A single unit or one ucube sat measures ten by

30
00:02:36.439 --> 00:02:41.039
<v Speaker 1>ten by ten centimeters, with additional units such as two

31
00:02:41.159 --> 00:02:47.080
<v Speaker 1>U or three ucube SATs stacked to increase capacity. This

32
00:02:47.360 --> 00:02:52.240
<v Speaker 1>standardized sizing enabled the development of cube SAT compatible hardware

33
00:02:52.360 --> 00:02:56.759
<v Speaker 1>and launch systems, leading to a burgeoning industry that rapidly

34
00:02:56.800 --> 00:03:02.919
<v Speaker 1>adopted the technology. The first cube sat was launched in

35
00:03:02.960 --> 00:03:07.000
<v Speaker 1>two thousand three, and since then thousands have been sent

36
00:03:07.039 --> 00:03:11.680
<v Speaker 1>into space with uses ranging from Earth observation to scientific

37
00:03:11.800 --> 00:03:19.240
<v Speaker 1>experiments and communications. Early on, CubeSats faced skepticism from the

38
00:03:19.319 --> 00:03:24.680
<v Speaker 1>aerospace community, which was accustomed to large, expensive satellites with

39
00:03:24.800 --> 00:03:30.240
<v Speaker 1>well proven capabilities. The notion that something as small and

40
00:03:30.360 --> 00:03:34.280
<v Speaker 1>cheap as a cube sat could perform meaningful scientific work

41
00:03:34.439 --> 00:03:41.280
<v Speaker 1>was met with bouts. However, the increasing miniaturization of electronics

42
00:03:41.319 --> 00:03:45.479
<v Speaker 1>and improvements in materials quickly led to advancements that made

43
00:03:45.560 --> 00:03:52.199
<v Speaker 1>cube SATs capable of sophisticated tasks. Today, cube SATs are

44
00:03:52.280 --> 00:03:59.000
<v Speaker 1>used in various applications, including monitoring climate change, testing new technologies,

45
00:03:59.439 --> 00:04:05.000
<v Speaker 1>and even exploring other planets. Their impact on the space

46
00:04:05.039 --> 00:04:09.479
<v Speaker 1>industry has been profound, allowing a diverse array of participants

47
00:04:09.520 --> 00:04:13.199
<v Speaker 1>to engage in space activities that were once the exclusive

48
00:04:13.240 --> 00:04:19.360
<v Speaker 1>domain of large space agencies and defense contractors. One of

49
00:04:19.360 --> 00:04:22.639
<v Speaker 1>the key advantages of cube SATs is their ability to

50
00:04:22.680 --> 00:04:29.399
<v Speaker 1>be launched as secondary payloads on larger missions. Traditional satellites

51
00:04:29.439 --> 00:04:33.920
<v Speaker 1>are expensive to launch because they require dedicated rockets, but

52
00:04:34.079 --> 00:04:38.680
<v Speaker 1>cube SATs can hitch a ride with larger satellites, significantly

53
00:04:38.759 --> 00:04:45.240
<v Speaker 1>reducing launch costs. As space agencies and private companies began

54
00:04:45.360 --> 00:04:50.120
<v Speaker 1>to recognize the value of cube SATs, Dedicated deployment mechanisms

55
00:04:50.199 --> 00:04:55.480
<v Speaker 1>were developed, such as the Polypico Satellite Orbital Deployer PEAPOD,

56
00:04:55.879 --> 00:04:59.199
<v Speaker 1>which allows multiple cube SATs to be released from a

57
00:04:59.240 --> 00:05:06.000
<v Speaker 1>single rocket. This innovation drastically reduced the cost of accessing space,

58
00:05:06.480 --> 00:05:14.759
<v Speaker 1>democratizing space exploration in the process. Universities, startups, and even

59
00:05:14.879 --> 00:05:18.839
<v Speaker 1>high school teams could now design and launch their own satellites,

60
00:05:19.279 --> 00:05:25.399
<v Speaker 1>contributing to a wave of innovation in the field. CubeSats

61
00:05:25.399 --> 00:05:29.480
<v Speaker 1>have proven especially valuable in Earth observation, where they can

62
00:05:29.519 --> 00:05:33.759
<v Speaker 1>be deployed in constellations to provide near real time monitoring

63
00:05:33.800 --> 00:05:39.519
<v Speaker 1>of the planet. This capability has been particularly useful for

64
00:05:39.600 --> 00:05:46.000
<v Speaker 1>tracking environmental changes such as deforestation, urbanization, and the movement

65
00:05:46.079 --> 00:05:52.199
<v Speaker 1>of glaciers. Private companies have seized on this opportunity, with

66
00:05:52.319 --> 00:05:57.240
<v Speaker 1>firms like Planet Labs using CubeSat constellations to capture daily

67
00:05:57.360 --> 00:06:02.360
<v Speaker 1>images of the entire Earth. These images are used in

68
00:06:02.399 --> 00:06:08.399
<v Speaker 1>applications ranging from agriculture to disaster response, offering an unprecedented

69
00:06:08.519 --> 00:06:14.360
<v Speaker 1>level of detail and timeliness. The small size of CubeSats

70
00:06:14.480 --> 00:06:17.720
<v Speaker 1>allows for large numbers of them to be deployed at once,

71
00:06:18.279 --> 00:06:21.879
<v Speaker 1>creating a network of satellites that can cover vast areas

72
00:06:21.920 --> 00:06:27.160
<v Speaker 1>with frequent updates. This is a stark contrast to the

73
00:06:27.199 --> 00:06:31.680
<v Speaker 1>traditional approach of using a few large, expensive satellites to

74
00:06:31.759 --> 00:06:38.480
<v Speaker 1>gather data, which may only provide sporadic coverage. The adaptability

75
00:06:38.519 --> 00:06:42.759
<v Speaker 1>of cube SATs also extends to scientific research, where they

76
00:06:42.800 --> 00:06:48.600
<v Speaker 1>are used for experiments in a variety of disciplines. NASA,

77
00:06:49.160 --> 00:06:53.720
<v Speaker 1>for example, as used cube SATs to test new propulsion systems,

78
00:06:54.120 --> 00:06:58.360
<v Speaker 1>to study the behavior of fluids in microgravity, and investigate

79
00:06:58.480 --> 00:07:04.000
<v Speaker 1>space weather phenomenon like solar radiation. One of the more

80
00:07:04.040 --> 00:07:08.199
<v Speaker 1>ambitious uses of cube SATs came during NASA's Insight mission

81
00:07:08.240 --> 00:07:14.279
<v Speaker 1>to Mars. Alongside the main Lander, NASA sent two cube

82
00:07:14.279 --> 00:07:19.920
<v Speaker 1>SATs named Marca and MARCOB, collectively known as the Mars

83
00:07:19.959 --> 00:07:26.319
<v Speaker 1>Cube one mission. These CubeSats relayed communications from Insight as

84
00:07:26.360 --> 00:07:31.000
<v Speaker 1>it descended to the Martian surface, demonstrating that small spacecraft

85
00:07:31.040 --> 00:07:37.040
<v Speaker 1>could play a supporting role in interplanetary missions. The success

86
00:07:37.079 --> 00:07:40.600
<v Speaker 1>of Marco paved the way for future deep space missions

87
00:07:40.680 --> 00:07:44.680
<v Speaker 1>involving cube SATs, proving that they could operate far beyond

88
00:07:44.720 --> 00:07:52.199
<v Speaker 1>Earth's orbit. Despite their advantages, cube SATs are not without challenges.

89
00:07:54.120 --> 00:07:57.800
<v Speaker 1>Their small size limits the amount of power they can generate,

90
00:07:58.160 --> 00:08:01.680
<v Speaker 1>the instruments they can carry, and the volume available for

91
00:08:01.800 --> 00:08:08.120
<v Speaker 1>propulsion systems. As a result, cube SATs are often limited

92
00:08:08.120 --> 00:08:11.800
<v Speaker 1>to low Earth orbit lo where they can complete their

93
00:08:11.839 --> 00:08:18.439
<v Speaker 1>missions without the need for complex propulsion. However, innovations in

94
00:08:18.560 --> 00:08:23.399
<v Speaker 1>miniaturized propulsion systems are beginning to extend the capabilities of

95
00:08:23.480 --> 00:08:27.480
<v Speaker 1>cube SATs, enabling them to reach higher orbits or even

96
00:08:27.600 --> 00:08:33.720
<v Speaker 1>venture into deep space. Another challenge is the relatively short

97
00:08:33.759 --> 00:08:37.399
<v Speaker 1>life span of cube SATs, which typically ranges from a

98
00:08:37.440 --> 00:08:41.759
<v Speaker 1>few months to a few years. This is due to

99
00:08:41.799 --> 00:08:46.519
<v Speaker 1>their limited power supply, exposure to radiation in the harsh

100
00:08:46.559 --> 00:08:53.519
<v Speaker 1>conditions of space. However, advancements and materials in design are

101
00:08:53.600 --> 00:08:57.759
<v Speaker 1>helping to extend the operational life of cube SATs, making

102
00:08:57.799 --> 00:09:03.000
<v Speaker 1>them even more attractive for long term missions. The rise

103
00:09:03.039 --> 00:09:09.000
<v Speaker 1>of CubeSats has also raised concerns about space debris. Given

104
00:09:09.039 --> 00:09:13.279
<v Speaker 1>the large number of CubeSats being launched, there's growing worry

105
00:09:13.320 --> 00:09:16.960
<v Speaker 1>about the potential for collisions and the creation of debris

106
00:09:17.000 --> 00:09:22.919
<v Speaker 1>that could pose a hazard to other spacecraft. Space agencies

107
00:09:22.919 --> 00:09:26.480
<v Speaker 1>and companies are working on solutions to mitigate this risk,

108
00:09:27.039 --> 00:09:30.879
<v Speaker 1>such as designing CubeSats that can urbit themselves at the

109
00:09:31.000 --> 00:09:34.279
<v Speaker 1>end of their missions, or creating systems to track and

110
00:09:34.320 --> 00:09:41.840
<v Speaker 1>avoid potential collisions. Additionally, regulatory frameworks are being developed to

111
00:09:42.000 --> 00:09:46.519
<v Speaker 1>ensure that cube sat operators follow best practices for reducing

112
00:09:46.559 --> 00:09:52.360
<v Speaker 1>the risk of space debris. The commercial potential of cube

113
00:09:52.399 --> 00:09:57.039
<v Speaker 1>SATs is vast, and private companies are increasingly investing in

114
00:09:57.080 --> 00:10:04.240
<v Speaker 1>their development and deployment. Start Ups specializing in CubeSat technologies

115
00:10:04.360 --> 00:10:10.120
<v Speaker 1>have attracted significant funding from venture capitalists, while established aerospace

116
00:10:10.200 --> 00:10:16.879
<v Speaker 1>firms have incorporated CubeSats into their business models. For instance,

117
00:10:17.440 --> 00:10:20.759
<v Speaker 1>SpaceX has launched cube SATs as part of its ride

118
00:10:20.759 --> 00:10:25.159
<v Speaker 1>share program, which allows small satellite operators to share the

119
00:10:25.200 --> 00:10:30.320
<v Speaker 1>cost of launching on its Falcon nine rockets. This has

120
00:10:30.399 --> 00:10:34.720
<v Speaker 1>further driven down the cost of accessing space, spurring even

121
00:10:34.799 --> 00:10:42.639
<v Speaker 1>more innovation in CubeSat applications. Beyond Earth observation and scientific research,

122
00:10:43.120 --> 00:10:47.559
<v Speaker 1>cube SATs are also being used for communications, particularly in

123
00:10:47.600 --> 00:10:52.480
<v Speaker 1>the development of small satellite constellations designed to provide global

124
00:10:52.519 --> 00:10:59.519
<v Speaker 1>Internet coverage. Companies like SpaceX, Amazon in one Web are

125
00:10:59.519 --> 00:11:05.039
<v Speaker 1>deployed thousands of small satellites, including CubeSats, to create a

126
00:11:05.080 --> 00:11:08.879
<v Speaker 1>global network that will deliver high speed Internet to remote

127
00:11:08.960 --> 00:11:14.639
<v Speaker 1>and underserved areas. This initiative has the potential to bridge

128
00:11:14.679 --> 00:11:18.639
<v Speaker 1>the digital divide and provide Internet access to billions of

129
00:11:18.679 --> 00:11:25.639
<v Speaker 1>people worldwide. In addition to their commercial applications, CubeSats are

130
00:11:25.679 --> 00:11:29.960
<v Speaker 1>being used in educational programs to inspire the next generation

131
00:11:30.120 --> 00:11:36.840
<v Speaker 1>of engineers and scientists. Universities around the world have incorporated

132
00:11:36.960 --> 00:11:42.159
<v Speaker 1>CubeSat development into their curricula, giving students hands on experience

133
00:11:42.360 --> 00:11:49.440
<v Speaker 1>and designing, building, and testing satellites. These programs not only

134
00:11:49.480 --> 00:11:53.480
<v Speaker 1>provide valuable skills for students, but also contribute to the

135
00:11:53.519 --> 00:12:00.360
<v Speaker 1>growing body of knowledge about CubeSat technologies. Many university built

136
00:12:00.360 --> 00:12:04.759
<v Speaker 1>cube SATs have been launched into space, conducting experiments in

137
00:12:04.840 --> 00:12:09.919
<v Speaker 1>gathering data that further our understanding of space and satellite technology.

138
00:12:12.480 --> 00:12:15.440
<v Speaker 1>The future of cube SATs is likely to be shaped

139
00:12:15.519 --> 00:12:22.440
<v Speaker 1>by ongoing advances in technology. As electronics and materials continue

140
00:12:22.480 --> 00:12:26.440
<v Speaker 1>to shrink in size and increase in efficiency, cube SATs

141
00:12:26.480 --> 00:12:30.360
<v Speaker 1>will become even more capable performing tasks that were once

142
00:12:30.440 --> 00:12:36.360
<v Speaker 1>the domain of much larger spacecraft. The development of advanced

143
00:12:36.399 --> 00:12:41.720
<v Speaker 1>propulsion systems such as electric propulsion and solar sales will

144
00:12:41.720 --> 00:12:47.679
<v Speaker 1>allow cube SATs to explore more distant destinations, including the Moon, Mars,

145
00:12:48.159 --> 00:12:53.039
<v Speaker 1>and beyond. Cube SATs may also play a role in

146
00:12:53.159 --> 00:12:58.519
<v Speaker 1>future space exploration missions, acting as scouts or communication relays

147
00:12:58.559 --> 00:13:05.639
<v Speaker 1>for larger spacecraft. The potential of CubeSats and interplanetary exploration

148
00:13:05.919 --> 00:13:12.720
<v Speaker 1>is particularly exciting. NASA's Artemis program with Change to return

149
00:13:12.840 --> 00:13:16.799
<v Speaker 1>humans to the Moon, includes plans to deploy CubeSats to

150
00:13:16.879 --> 00:13:22.320
<v Speaker 1>study the lunar environment and support the mission. These small

151
00:13:22.360 --> 00:13:27.000
<v Speaker 1>satellites could map the surface, study the Moon's radiation environment,

152
00:13:27.480 --> 00:13:31.240
<v Speaker 1>or even search for water ice in permanently shadowed regions.

153
00:13:33.159 --> 00:13:38.000
<v Speaker 1>As humanity prepares to explore Mars and other destinations, cube

154
00:13:38.039 --> 00:13:41.200
<v Speaker 1>SATs will likely play a crucial role in these efforts,

155
00:13:41.639 --> 00:13:46.639
<v Speaker 1>providing low cost, flexible platforms for gathering data and testing

156
00:13:46.679 --> 00:13:54.159
<v Speaker 1>new technologies. In conclusion, cube SATs have revolutionized space exploration

157
00:13:54.399 --> 00:14:01.000
<v Speaker 1>by making it more accessible, affordable, and innovative. What began

158
00:14:01.120 --> 00:14:04.440
<v Speaker 1>as an educational tool has grown into a vital part

159
00:14:04.480 --> 00:14:08.840
<v Speaker 1>of the space industry, with applications ranging from Earth observation

160
00:14:09.080 --> 00:14:16.519
<v Speaker 1>to deep space exploration. As technology continues to advance, CubeSats

161
00:14:16.559 --> 00:14:20.639
<v Speaker 1>will become even more capable, opening up new possibilities for

162
00:14:20.720 --> 00:14:28.519
<v Speaker 1>scientific discovery, commercial ventures, and human exploration. Their impact on

163
00:14:28.600 --> 00:14:32.480
<v Speaker 1>the space industry is undeniable. And their role in shaping

164
00:14:32.519 --> 00:15:15.240
<v Speaker 1>the future of space exploration will only continue to grow.

165
00:15:15.559 --> 00:15:55.120
<v Speaker 1>The US beca
