Outer Space & Universe
Outer Space & Universe
Space, also known as outer space, is the near-vacuum between celestial bodies. It is where everything (all of the planets, stars, galaxies and other objects) is found.
On Earth, space begins at the Kármán line (100 km above sea level). This is where Earth's atmosphere is said to stop and outer space begins. This is not a firm boundary but is a convention used by scientists and diplomats.
Items in space are free to move back and forth; up and down; and left and right. These three dimensions are what make 3D space. Items also move forward through time, which is sometimes called the fourth dimension.
The majority of space contains very little matter and so most of it is a vacuum. Scientists do not know how big space is but we do know that space is extremely big, and is always expanding.
According to the big bang theory, all matter and energy in the Universe was compressed into a very small space. Then it exploded and started expanding. Space is still growing in size today; this means the distance from one galaxy to distant galaxies is getting longer.
Gravity is the force that keeps the Moon in orbit around the Earth and the planets in orbit around the Sun. Gravity can stretch and bend space similar to how a heavy ball placed on a stretched sheet of rubber will cause the rubber to stretch. The scientist who discovered that space can bend is named Albert Einstein. How gravity bends space is part of his theory of general relativity.
Astronauts, Cosmonauts, Taikonauts and Spationauts
An astronaut is any person who is trained by NASA to travel and perform tasks in space. Although the space traveler may not necessarily be a United States citizen, each astronaut does go through a rigorous training regiment by the National Aeronautics and Space Administration. Other space travelers go by other names then astronaut depending on their country of origin.
In the United States, astronaut is derived from the Greek words ástron (star) and nautis (sailor). While, in Russia, a space traveler goes by the name космонавт (English: cosmonaut), which is derived from the Greek words kosmos (universe) and nautis (sailor). Westerners call a space traveler from China a taikonaut, based on the 1998 writings of Chiew Lee Yik and Chen Lan where the term tàikōng (great emptiness), Chinese for “space”. In China, the term yuháng yuán (universe navigator) is used for space traveler.
Only the United States of America (United States), Russia (earlier, the Union of Soviet Socialist Republics), and the People’s Republic of China (China) have sent manned spacecraft into space. Other countries have assisted these countries by sending their own space travelers on space missions. For instance, a French space traveler is called a spationaut (from the French word spationaute), which is derived from the Latin spatium (space) and Greek nautis (sailor). (plural in Greek nautes = sailors)
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Everybody seems dressed up & happy to see Taylor Swift tonight. Even the locomotive.
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01:49
Webb Telescope delivers amazing supernova remnant Cassiopeia A view - See in 4K!
Added 94 Views / 0 LikesThe James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in the Cassiopeia constellation. Full Story: https://www.space.com/james-webb-space-telescope-cas-a-supernova-remnantCredit: Space.com
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very RED ALERT! Wild Weather Eris & Jupiter Conjunction post Eclipse and My true BEER FEELINGS.
Added 94 Views / 0 Likeshave a great weekend.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:05
Bus-size asteroid zips by Earth closer than the moon in orbit animation
Added 94 Views / 0 LikesAsteroid 2023 JF flew about 199,000 miles (320,000 km) away from Earth on May 9, 2023. It is estimated size is about 34 feet wide (10 meters), roughly the size of a bus. Orbit animation courtesy: NASA/JPL-Caltech | mash mix by Space.com's [Steve Spaleta](
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08:16
Private Ax-2 astronauts call Earth from orbit aboard SpaceX Dragon 'Freedom'
Added 94 Views / 0 LikesThe Axiom Space Ax-2 crew, commander Peggy Whitson, pilot John Shoffner, and mission specialists Ali Alqarni and Rayyanah Barnawi talk about their launch aboard SpaceX Crew Dragon Freedom. Watch them launch: https://www.space.com/spacex-ax-2-private-astro
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Webb’s views of NGC 5068 (NIRCam and MIRI images)
Added 94 Views / 0 LikesThis video highlights two views of the barred spiral galaxy NGC 5068 as seen by the NASA/ESA/CSA James Webb Space Telescope. The galaxy’s bright central bar is visible in the upper left of this image. NGC 5068 lies around 17 million light-years from Earth
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02:17
High-energy 'ghost particles' detected in Milky Way by IceCube Neutrino Observatory
Added 94 Views / 0 LikesThe IceCube Neutrino Observatory has detected a "high-energy neutrino emission from within the Milky Way," according to AAAS. Full Story: https://www.space.com/high-energy-neutrinos-milky-way-galaxy-icecubeCredit: IceCube Collaboration/Science Communicati
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Sun blasts powerful X1.1-class flare! See spacecraft's view
Added 94 Views / 0 LikesSunspot AR3354 erupted with an X1.1-class solar flare on July 2, 2023. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. "Extreme UV radiation from the flare caused a deep shortwave radio blackout over the Pacific Ocean." a
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Watch an alien world orbit around its star in 17-year time-lapse
Added 94 Views / 0 LikesExoplanet Beta Pictoris b can be seen moving around its star in this 17-year timelapse created using "AI-driven image-processing techniques," according to Northwestern University. Gemini Observatory and European Southern Observatory imaging data was used.
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00:30
A Galactic Powerhouse
Added 93 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2124a/Credit:ESA/Hubble & NASA, A. Riess et al. Music: Mylonite MRP - Mylonite Recordz Production
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Wildfires in Alaska monitored from space by NOAA satellites
Added 93 Views / 0 LikesThere were "record number of wildefires" in Alaska in June 2022, according to NOAA. Their NOAA-20 and Suomi NPP satellites have kept their eyes on them. Credit: NOAA
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WTF?! Betelgeuse Surface Mass Ejection!? Fire Dragon! Pacific Heat Anomaly! Texas Depression?
Added 93 Views / 0 LikesI want you to have a super wonderful happy weekendbecause YOU DESERVE IT!God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Starlink Mission
Added 93 Views / 0 LikesSpaceX is targeting Tuesday, August 30 for a Falcon 9 launch of 46 Starlink satellites to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. The instantaneous launch window is at 10:40 p.m. PT (5:40 UTC
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04:11
Artemis 1's next launch attempt may be last week of September, NASA submits FTS waiver
Added 93 Views / 0 LikesNASA has submitted a Flight Termination System reset waiver for possible Artemis 1 launch attempts on Sept. 23 or Sept. 27. Jim Free, NASA associate administrator for exploration systems development, explains at a teleconference on Sept. 8, 2022. Credit:
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16:39
Starlink Mission Control Audio
Added 93 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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Strange 'debris' falls off Mars helicopter Ingenuity during flight
Added 93 Views / 0 LikesNASA is currently investigating the source of debris that can seen in imagery captured during Mars helicopter Ingenuity's 33rd flight on the Red Planet. The flight occurred on Sept. 24, 2022. Credit: Space.com | footage courtesy: NASA/JPL-Caltech | edited
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12:59
NASA Live: Launch of Cargo Supply to the Space Station | NG-18 SS Sally Ride
Added 93 Views / 0 LikesA Northrop Grumman Antares rocket will launch the latest Cygnus cargo freighter on an operational cargo delivery flight to the International Space Station. The mission is known as NG-18 and the spacecraft is named SS Sally Ride, which will fly for the sec
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NASA's Artemis 1 spacecraft approaches moon in time-lapse, less than 4,500 miles away!
Added 93 Views / 0 LikesSee footage of the Orion spacecraft a little over an hour before its "outbound powered flyby burn" on Nov. 21, 2022. The spacecraft was less than 4,500 miles away (~7,242 km) and was traveling at 757 miles per hour (1218 kph). Watch live: https://www.spac
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05:27
Artemis 1 mission update - Earth return prep and benefits for humanity
Added 93 Views / 0 LikesPreparations are underway for the return of NASA's Artemis 1 Orion spacecraft. Also, learn about the benefits of returning to the moon with the Artemis program. Credit: NASA