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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01:09
'Farfarout' is now farthest object observed in our solar system
Added 173 Views / 0 LikesIn Jan. 2018, a distant object, designated 2018 AG37 and nicknamed "FarFarout, was discovered using the Subaru Telescope in Hawai‘i. It now holds the record for farthest object observed in our solar system at 132 astronomical units (AU) away from the Sun.
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01:31
Chinese probe captures footage of Mars while entering orbit
Added 194 Views / 0 LikesChina's first Mars exploration mission, Tianwen-1, entered orbit at the Red Planet on February 10, 2021. "Slight vibration of the probe after engine ignition can be seen clearly" in the footage captured by Tianwen-1, according to China Central Television.
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32:38
The Many Missions To Mars | Space Chat
Added 211 Views / 0 LikesThis week on 'Space Chat': Chelsea goes over the UAE's Hope mission, China's Tianwen-1 and of course, NASA's Perseverance rover, set to land on the red planet Thursday, Feb. 18, 2021. Chelsea is joined by a very special guest, Moogega Cooper, to discuss t
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04:11
Mars arrivals, 'Farfarout' object and more this week! | VFS Weekly
Added 167 Views / 0 LikesVideos featured: Martian moon projected into night sky over UAE, China enters Mars orbit and captures footage, 'Farfarout' is now the farthest observed object in our solar system, and a collection of black holes is discovered by Hubble. -- Join the Space.
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02:42
Hubble discovers collection of black holes in globular cluster
Added 193 Views / 0 LikesGlobular cluster NGC 6397 is host to a "concentration of black holes," according to new observations made the Hubble Space Telescope team.Video credit: NASA's Goddard Space Flight Center Paul Morris: Lead Producer Music: "Glass Ships" by Chris Constantino
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7:39:49
National Space Settlement 2021 - Virtual NSS Event | (Re-Broadcast)
Added 173 Views / 0 LikesNational Space Society's National Space Settlement 2021 virtual event will be re-broadcast at 12pm ET / 9am PT on Feb. 13, 2021. Full schedule here: https://spacesettlement2021.nss.org/home/schedule/
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03:44
Perseverance's Mars landing attempt will be 'most dangerous yet'
Added 157 Views / 0 LikesThere are "many things that have to go right" for Perseverance to successfully land on Mars, according to NASA's Swati Mohan. Learn what the rover will be dealing with during descent and landing at Mars' Jezero Crater. Credit: NASA/JPL-Caltech
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03:06
Blastoff! Soyuz rocket launches uncrewed Progress 77 cargo spacecraft
Added 190 Views / 0 LikesA Russian Soyuz rocket launched the uncrewed Progress 77 cargo ship to the International Space Station from Baikonur Cosmodrome in Kazakhstan on Feb. 14, 2021 (Feb. 15 - local time). -- Full Story: https://www.space.com/russia-launches-progress-77-cargo-s
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00:58
Hydrogen chloride gas discovered in Martian atmosphere by orbiter
Added 199 Views / 0 LikesThe ESA-Roscosmos ExoMars Trace Gas Orbiter orbiter discovered hydrogen chloride gas in the atmosphere of Mars for the first time during a dust storm in 2018. Credit: ESA
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03:41
Blastoff! SpaceX launches 19th batch of Starlink satellites
Added 219 Views / 0 LikesSpaceX launched 60 Starlink satellites atop a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida on Feb. 15, 2021. -- Full Story: https://www.space.com/spacex-launches-60-starlink-satellites-rocket-landing-feb-15-2021Credit: SpaceX
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00:59
Birds on SpaceX drone ship! Booster landing is unsuccessful
Added 197 Views / 0 LikesA SpaceX Falcon 9 first stage crashed into the Atlantic Ocean after launching the 19th batch of Starlink satellites on Feb. 15, 2021. There were 3 birds in the landing zone of the “Of Course I Still Love You” drone ship during the landing attempt. It's un
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04:35
Down to Earth – A Perfect Planet
Added 790 Views / 0 LikesIn this episode of Down to Earth, NASA Astronaut Andrew Morgan speaks about his spacewalk experiences, and discusses the importance of caring for our home planet. #SpaceStation20th Video produced at the NASA Johnson Space CenterProducer/Editor: Jamie Quin
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01:08
NASA chooses SpaceX Starship for propellant transfer demonstration
Added 287 Views / 0 LikesSpaceX will partner with NASA's Glenn Research Center and Marshall Space Flight Center to demonstrate propellant transfer between tanks on a Starship. Credit: Space.com / animation courtesy: SpaceX / produced & edited by Steve Spaleta (http://www.twitter.
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02:44
NASA DuAxel rover prototype is a 'transformer'
Added 319 Views / 0 LikesNASA DuAxel rover can split into two parts to explore different types of terrain. It's a "pair of two-wheeled rovers," according to NASA's Jet Propulsion Laboratory. Credit: NASA/JPL-Caltech
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01:25
Crewed Soyuz spacecraft docks with space station in time-lapse video
Added 365 Views / 0 LikesKate Rubins of NASA, along with Sergey Ryzhikov and Sergey Kud-Sverchkov of Roscosmos, docked with the International Space Station aboard a Soyuz MS-17 spacecraft only 3 hours after launch on Oct. 14, 2020. -- Watch the launch: https://www.space.com/soyuz
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03:17
Blastoff! NASA astronaut launches to ISS on her birthday with crewmates
Added 269 Views / 0 LikesNASA astronaut Kate Rubins, along with Russian cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov, launched to the International Space Station aboard a Russia's Soyuz MS-17 spacecraft on Oct. 14, 2020. Credit: NASA
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04:49
Preparing for launch! NASA's Kate Rubins talk new space station mission
Added 286 Views / 0 LikesNASA astronaut Kate Rubins talks about her new International Space Station mission with Space.com's Chelsea Gohd. Rubin's was in Star City, Russia at the time of the interview. Credit: Space.com
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02:40
Kate Rubins: Science on the Space Station
Added 294 Views / 0 LikesKate Rubins is both a scientist and a NASA astronaut. There is no better place to be than the International Space Station for someone with those two occupations. In this video, Kate explains how the space station is the perfect place to conduct research.
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01:43
Tour Blue Origin's crew capsule - 'Everyone gets a window seat'
Added 261 Views / 0 LikesBlue Origin takes you inside their New Shepard crew capsule, sporting the "largest windows that have ever flown in space."Credit: Blue Origin
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01:10
Spacesuits for the Next Explorers: Preview Trailer 3- New Car Smell
Added 297 Views / 0 LikesWhen does a spacesuit smell like a new car? When it’s brand new! NASA is creating a new spacesuit for missions to the Moon and beyond. With improved mobility, flexibility and endurance the suit will allow astronauts to do more exploration than ever before