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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02:33
Happy Thankgiving From the International Space Station
Added 329 Views / 0 LikesNASA astronauts Christina Koch, Jessica Meir and Andrew Morgan deliver a Thanksgiving message from the International Space Station in 2019. Credit: NASA
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01:02
Blastoff! China's Long March 3B rocket launches land exploration
Added 64 Views / 0 LikesChina's Long March 3B rocket launched a land exploration satellite from the Xichang Satellite Launch Center on Aug. 13, 2023. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by [Steve Spaleta](https://twitter.com/stevespalet
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11:16
Eurocane to blow through London & Europe
Added 302 Views / 0 LikesWe've got a Cat 1 Eurocane headed for the UK and Friends.This Video is dedicated to Hermione's mom.(and Hermione, Daenerys & Arya)God bless everyone,TT LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWS
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10:33
Astra rocket fails to deliver NASA TROPICS satellites - See the launch
Added 150 Views / 0 LikesAstra's 43-foot-tall (13 meters) Launch Vehicle 0010 (LV0010) lifted off from Cape Canaveral Space Force Station in Florida on June 12, 2022 with NASA's TROPICS-1 mission. It failed to deliver the cubesats due to the upper stage engine shutting down early
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02:07
Massive Diamond Planet Orbits Neutron Star, Astronomers Find
Added 715 Views / 0 LikesUsing the giant Parkes Radio Telescope in New South Wales, Australia, astrophysicists have found an incredibly dense planet comprised of crystalized carbon -- the stuff of diamonds -- in orbit about a pulsar.
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00:49
OTD in Space – March 21: NASA Launches Ranger 9
Added 388 Views / 0 LikesOn March 21, 1965, NASA launched the Ranger 9 spacecraft on a mission to crash into a lunar crater. Ranger 9 was the last flight of NASA's Ranger Program. The spacecraft would study the crater Alphonsus by crashing directly into it and taking pictures alo
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01:06
Ingenuity spots Perseverance during 11th flight on Mars
Added 174 Views / 0 LikesIngenuity captured color and black & white images during its 11th flight on August 5, 2021. NASA's Perseverance rover can be seen in one of the color pics. Credit: Space.com | imagery courtesy: NASA/JPL-Caltech | produced & edited by Steve Spaleta (http:/
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02:51
Crew Dragon‘s Second Demonstration Mission
Added 306 Views / 0 LikesCrew Dragon’s test flight with NASA astronauts Bob Behnken and Doug Hurley on board the spacecraft marked the return of U.S. human spaceflight and the first-time in history a commercial company successfully transported NASA astronauts to the International
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04:46
Foam Studied on Space Station
Added 347 Views / 0 LikesExperiments with foam have been conducted aboard the International Space Station. Credit: ESA
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07:10
RED ALERT! Hurricane Hilary = Catastrophic Flooding! big Russian Moon lander & Vegas Sphere Trouble.
Added 87 Views / 0 LikesStay aware & stay safe & stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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15:45
Snowball planets might have living Aliens + Volcanoes & Changing Climate
Added 368 Views / 0 LikesMarcus is a great bass player & a cool guy.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashAppHttps://www.paypal.me/thornewshttps://www.patreon.com/thornewsthe
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14:38
Planet Parade! 126 degrees in Iran! Martian bricks! Chinese Jumboat Restaurant Sinks!
Added 133 Views / 0 LikesIt's a hot & wild world.we've got a parade of planetsMercury Venus Mars Saturn Jupiter Uranus Neptune Plutorecord breaking heat across the globea strong monsoon season inboundand lots of other news.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON
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03:44
Video Captures SpaceX's 'Re-Lightable' Engine
Added 666 Views / 0 LikesRocketCam's video of the September 29th, 2013 launch, saw the upgraded rocket's first stage separation and an engine restart - key to making fully re-usable boosters that can fly often.
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00:54
OTD in Space – March 30: SpaceX Launches & Lands Used Rocket in Historic 1st Reflight
Added 495 Views / 0 LikesOn March 30, 2017, SpaceX launched and landed a used rocket for the first time. This was a huge step forward in SpaceX's plight to develop fully reusable rockets and reduce launch costs. The Falcon 9 rocket had completed a previous mission almost a year e
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07:08
Earth observation satellite & 4 cubesats launch atop Vega rocket
Added 180 Views / 0 LikesAn Arianespace Vega rocket launched the Pléiades Neo 4 satellite and four cubesats, called BRO-4, SUNSTORM, LEDSAT and RADCUBE, from the Guiana Space Center in Kourou, French Guiana on Aug. 16, 2021. Credit: Arianespace
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00:41
SpaceX Crew-1's NASA astronauts will vote from space, if launch is on time
Added 301 Views / 0 LikesIn response to a question from The Verge's Loren Grush, NASA's Shannon Walker says that she and her crewmates will cast their votes in the US general election from the International Space Station, if they arrive by then. The SpaceX Crew-1 launch is schedu