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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13:14 New
Cold snap & snow! Florida rain! Big Storm=27th!!! Caribbean Volcano erupts again! Typhoon Sarigae
Added 13 Views / 0 Likesyall are awesome.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
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01:09 New
Remember fidget spinners? See one spin in space!
Added 13 Views / 0 LikesNASA brought a fidget spinner to the International Space Station a few years ago. See it in action here. Credit: NASA/Johnson Space Center
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04:27 New
SpaceX Starship chosen by NASA to land astronauts on Moon
Added 13 Views / 0 LikesNASA's Human Landing System program has picked SpaceX to develop the lander for Artemis. [Full Story](https://www.space.com/spacex-wins-nasa-artemis-moon-lander-contest)Credit: NASA
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01:37 New
Mars helicopter's flight date set after delay - See its blades spin!
Added 16 Views / 0 LikesNASA will attempt the first flight of Ingenuity as early as Monday (April 19), after it was delayed by a timer glitch during a preflight test. See footage of the helicopter's blades spinning and its deployment to the surface combined with Martian wind aud
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08:22 New
Super Typhoon Surigae! South Flood USA! Geomagnetic Storms! 3 Sunspots! CME! Snow! Volcanoes!
Added 20 Views / 0 Likescongratulations, you will probably survive Eris week.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:22 New
Mars helicopter test flight status updated by NASA
Added 18 Views / 0 LikesNASA Ingenuity's flight was delayed earlier this week, but NASA has been running tests on the Mars helicopter. Ingenuity Chief Engineer Bob Balaram gives an updated. Also, Perseverance Project Scientist Ken Farley talks about the MOXIE experiment. Credit:
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11:55 New
Touchdown! Soyuz MS-17 crew safely lands in Kazakhstan
Added 18 Views / 0 LikesSergey Ryzhikov and Sergey Kud-Sverchkov from Roscosmos and Kate Rubins of NASA landed on the steppe of Kazakhstan on April 17, 2021 aboard Russia's Soyuz MS-17 spacecraft. They spent 185 days on the International Space Station. Full Story: https://www.sp
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02:41 New
Know Your Crew...Two!
Added 16 Views / 0 LikesShane Kimbrough, Megan McArthur, Aki Hoshide, and Thomas Pesquet are about to fly NASA’s SpaceX Crew-2 mission to the International Space Station. Before their launch, we brought them in the studio to test what they know about each other – and what they t
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04:52 New
SpaceX Crew-2 astronauts arrive in Florida ahead of launch
Added 20 Views / 0 LikesNASA's Shane Kimbrough and Megan McArthur, JAXA astronaut Akihiko Hoshide and ESA's Thomas Pesquet landed at NASA's Kennedy Space Center in Florida on April 16, 2021 ahead of their April 22 SpaceX Crew Dragon launch attempt. -- Meet Crew-2: The 4 space-bo
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17:09 New
Space Chat! Mars Helicopter Ingenuity Takes Center Stage
Added 19 Views / 0 LikesToday at 2:00p ET (11a PT/1800 GMT), Space.com senior writer Chelsea Gohd will be taking a deep dive into Mars helicopter Ingenuity, which is expected to lift off the the Martian ground sometime next week!
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01:05 New
China launches experimental Shiyan 6 satellites - See it in slo-mo
Added 19 Views / 0 LikesA Long March-4B rocket launched a set of experimental Shiyan 6 satellites from the Taiyuan Satellite Launch Center in China on April 8, 2021. The satellites will be "used to carry out space environment survey and experiments on related technologies," acco
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02:41 New
Know Your Crew...Two!
Added 19 Views / 0 LikesShane Kimbrough, Megan McArthur, Aki Hoshide, and Thomas Pesquet are about to fly NASA’s SpaceX Crew-2 mission to the International Space Station. Before their launch, we brought them in the studio to test what they know about each other – and what they t
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08:46 New
Mars helicopter delay, Blue Origin launches and more in VFS Weekly
Added 19 Views / 0 LikesThe Ingenuity helicopter's flight was delayed for a software update. Meanwhile, Perseverance captured new imagery of Mars. Blue Origin launched a New Shepard rocket test flight and Astrobotic announced that the SpaceX Falcon Heavy rocket will launch the N
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02:43 New
Space to Ground: Signing Out: 04/16/2021
Added 19 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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11:25 New
Tsunami. Eris Energy & Nor'easter? 4 SUNSPOTS? Florida & Southeast storms & more Volcano activity.
Added 22 Views / 0 LikesEris energy alert.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
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01:15 New
See asteroid named after Jackie Robinson orbit the sun in 5-year time-lapse animation
Added 22 Views / 0 Likes4319 Jackierobinson was named after the 1st African American to play in the modern era of Major League Baseball. The asteroid, originally designated 1981 ER14, was discovered on Mar. 1, 1981 by "S. J. Bus at Siding Spring in the course of the U.K. Schmidt
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03:11 New
Watch black holes 'warp' one another in amazing 4K NASA simulation
Added 23 Views / 0 LikesLight from a binary black hole system is bent and distorted as they pass in front of each other in this simulation from NASA.Credit: NASA’s Goddard Space Flight Center/Jeremy Schnittman and Brian P. PowellMusic: "Gravitational Field" from Orbit. Written a
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04:20 New
STEMonstrations: Newton's First Law of Motion
Added 21 Views / 0 LikesWatch NASA astronauts Mark Vande Hei and Jeff Williams demonstrate Newton’s First Law of Motion in microgravity aboard the International Space Station. Astronaut Mark Vande Hei shows how an object at rest tends to stay at rest and an object in motion tend
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06:00 New
Spacewalks in HD 2020-2021
Added 22 Views / 0 LikesCan you imagine what the Earth looks like from 250 miles up? Well, now you don’t have to! International Space Station astronauts wearing small high-definition video cameras during recent spacewalks have delivered the evidence, and it’s gorgeous—have a loo
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01:30 New
See the famous M87 black hole in multiple wavelengths
Added 17 Views / 0 LikesSeveral observatories including the Event Horizon Telescope, Chandra X-ray Observatory, Hubble Space Telescope, Neil Gehrels Swift Observatory, and more have captured the M87 black hole and the region surrounding it in multiple wavelengths. Full Story: ht