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Today: 26 January 2021, Tuesday.

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News for Astronautics





#1

 

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Description A veteran rocket from billionaire entrepreneur Elon Musk’s SpaceX aerospace company launched 143 spacecraft into space on Sunday, a new record for the most spaceships deployed on a single mission, according to the company.

#Astronautics
Field # Astronautics
Updated 26 January 2021

#2

 

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Description Elon Musk’s SpaceX set a new record on Sunday for the most spaceships deployed on a single mission with the launch of 143 spacecraft into space via its Falcon 9 reusable rocket.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#3

 

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Description On Sunday (Jan. 24), SpaceX launched the Transporter-1 mission with an incredible 143 satellites. Not everyone is celebrating, though.  ...

#Astronautics
Field # Astronautics
Updated 25 January 2021

#4

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#5

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#6

 

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Description Steve Jurczyk was catapulted from third-in-line to acting leader of NASA when Biden took office. Here's some of what we know about him and his leadership.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#7

 

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Name
Description SN9 is on deck to boldly follow in the footsteps of SN8, which bravely sacrificed itself in the name of iteration.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#8

 

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Name
Description A veteran rocket from billionaire entrepreneur Elon Musk’s SpaceX aerospace company launched 143 spacecraft into space on Sunday, a new record.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#9

 

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Description Since the end of World War II, the US and allies have tried to network-enable war.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#10

 

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Description It's only been about six weeks since SN8 flew.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#11

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#12

 

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Description The Falcon 9 rocket lifted off at 10 a.m. EST from the Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. It flew south along the eastern coast of Florida on its way to space, the company said.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#13

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#14

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#15

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#16

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#17

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#18

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 25 January 2021

#19

 

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Description SpaceX launched the Transporter-1 mission on Sunday, Jan. 24 after two delays, sending a record-setting 143 satellites into orbit.

#Astronautics
Field # Astronautics
Updated 25 January 2021

#20

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 24 January 2021

#21

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 24 January 2021

#22

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 24 January 2021

#23

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 24 January 2021

#24

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 24 January 2021

#25

 

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Name
Description SpaceX launched the Transporter-1 mission on Sunday, Jan. 24 after two delays, sending a record-setting 143 satellites into orbit.

#Astronautics
Field # Astronautics
Updated 24 January 2021

#26

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 23 January 2021

#27

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 23 January 2021

#28

 

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Description NASA’s Cassini mission spotted a strange signal coming from Saturn’s second-largest moon Rhea – it may be from hydrazine, a compound often used in rocket fuel

#Astronautics
Field # Astronautics
Updated 23 January 2021

#29

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 23 January 2021

#30

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 23 January 2021

#31

 

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Description Orbital-angular-momentum (OAM) multiplexing has been utilized to increase the channel capacity in both millimeter-wave and optical domains. Terahertz (THz) wireless communication is attracting increasing attention due to its broadband spectral resources. Thus, it might be valuable to explore the system performance of THz OAM links to further increase the channel capacity. In this paper, we study through simulations the fundamental system-degrading effects when using multiple OAM beams in THz communications links under atmospheric turbulence. We simulate and analyze the effects of divergence, turbulence, limited-size aperture, and misalignment on the signal power and crosstalk of THz OAM links. We find through simulations that the system-degrading effects are different in two scenarios with atmosphere turbulence: (a) when we consider the same strength of phasefront distortion, faster divergence (i.e., lower frequency; smaller beam waist) leads to higher power leakage from the transmitted mode to neighbouring modes; and (b) however, when we consider the same atmospheric turbulence, the divergence effect tends to affect the power leakage much less, and the power leakage increases as the frequency, beam waist, or OAM order increases. Simulation results show that: (i) the crosstalk to the neighbouring mode remains < − 15 dB for a 1-km link under calm weather, when we transmit OAM + 4 at 0.5 THz with a beam waist of 1 m; (ii) for the 3-OAM-multiplexed THz links, the signal-to-interference ratio (SIR) increases by ~ 5–7 dB if the mode spacing increases by 1, and SIR decreases with the multiplexed mode number; and (iii) limited aperture size and misalignment lead to power leakage to other modes under calm weather, while it tends to be unobtrusive under bad weather.

#Astronautics
Field # Astronautics
Updated 22 January 2021

#32

 

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Description Important discoveries and lingering questions lie in deceased telescope’s wake

#Astronautics
Field # Astronautics
Updated 22 January 2021

#33

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#34

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#35

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#36

 

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Description President Joe Biden chose to display a moon rock in his newly redecorated Oval Office. This lunar rock has quite a rich geologic history.

#Astronautics
Field # Astronautics
Updated 22 January 2021

#37

 

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Description Party in the payload bay: 143 total satellites deployed in a dozen waves.

#Astronautics
Field # Astronautics
Updated 22 January 2021

#38

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#39

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#40

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#41

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#42

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 22 January 2021

#43

 

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Description When is the next full moon? Read on to find out the best lunar events happening in 2021, from blood moons to the wolf moon.

#Astronautics
Field # Astronautics
Updated 22 January 2021

#44

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#45

 

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Description Astronomers have spotted a sextuple star system – in which six stars orbit each other – by watching the stars eclipse each other when viewed from our solar system

#Astronautics
Field # Astronautics
Updated 21 January 2021

#46

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#47

 

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Description In an experiment, NASA set several controlled fires inside a used Cygnus cargo resupply spacecraft to study how fire spreads in microgravity.

#Astronautics
Field # Astronautics
Updated 21 January 2021

#48

 

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Description Jurcyzk, who has a long history with NASA, takes over from former administrator Jim Bridenstine.

#Astronautics
Field # Astronautics
Updated 21 January 2021

#50

 

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Description Harvard astronomy professor Avi Loeb’s highly anticipated new book, “Extraterrestrial: The First Sign of Intelligent Life Beyond Earth,” is being published Jan. 26, detailing his controversial theory that an artificial object may had been sent to Earth in 2017 from an extraterrestrial civilization.

#Astronautics
Field # Astronautics
Updated 21 January 2021

#51

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#52

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#53

 

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Description Intel might launch another mid-range processor soon. As a new Rocket Lake-S processor has surfaced online on Geekbench. The Geekbench listing reveals several details such as clock speed, model number, benchmark scores and more.

#Astronautics
Field # Astronautics
Updated 21 January 2021

#54

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#55

 

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Description Want to spot The North Star, Mars, The International Space Station and other galaxies with your eyes? Read on to find the top stargazing essentials.

#Astronautics
Field # Astronautics
Updated 21 January 2021

#56

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 21 January 2021

#57

 

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Description NASA is considering a second firing of its Moon rocket engines after a critical test came up short over the weekend, a move that could bump the first flight in the Artemis lunar-landing program into next year.

#Astronautics
Field # Astronautics
Updated 20 January 2021

#58

 

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Description SN9 is on deck to boldly follow in the footsteps of SN8, which bravely sacrificed itself in the name of iteration.

#Astronautics
Field # Astronautics
Updated 20 January 2021

#59

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 20 January 2021

#60

 

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Description DC is all set to shake up its comics app on January 21 and will be relaunching it as DC Universe Infinite.

#Astronautics
Field # Astronautics
Updated 20 January 2021

#61

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 20 January 2021

#62

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 20 January 2021

#63

 

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Description More transmissible coronavirus variants, coupled with questions about whether the vaccines prevent transmission, means it might be impossible to wipe out covid-19

#Astronautics
Field # Astronautics
Updated 20 January 2021

#64

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 20 January 2021

#65

 

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Description Outgoing NASA Administrator Jim Bridenstine shared an emotional goodbye video in which he celebrated the space agency's success and long-term missions.

#Astronautics
Field # Astronautics
Updated 20 January 2021

#66

 

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Description SpaceX will launch the first batch of 60 Starlink satellites from the Kennedy Space Center in Florida on Jan. 20, if all goes according to plan.

#Astronautics
Field # Astronautics
Updated 19 January 2021

#67

 

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Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021

#68

 

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Description Weather appears to be good for Wednesday after concerns about recovery on Monday.

#Astronautics
Field # Astronautics
Updated 19 January 2021

#69

 

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Description Data from the now-destroyed Arecibo radio telescope has revealed a bizarre new type of hybrid venomous-spider star.

#Astronautics
Field # Astronautics
Updated 19 January 2021

#70

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021

#71

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021

#72

 

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Description Astronomers have spotted a new type of "spider star," highly energetic pulsars that tear up their companion stars, that defies classification.

#Astronautics
Field # Astronautics
Updated 19 January 2021

#73

 

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Description Of 23 test objectives, full data was received for 15 of them.

#Astronautics
Field # Astronautics
Updated 19 January 2021

#74

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021

#75

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021

#76

 

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Name
Description TBD

#Astronautics
Field # Astronautics
Updated 19 January 2021