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)
-
05:26
This is Bob Behnken
Added 295 Views / 0 LikesThe first American astronauts to launch on an American rocket in almost nine years are about to make history, and this is your chance to learn who they are. NASA astronaut Bob Behnken talks about his career as an astronaut, what he expects on launch day a
-
05:18
This is Doug Hurley
Added 320 Views / 0 LikesOne of the astronauts who was on the last space shuttle mission almost nine years ago is about to fly again! NASA astronaut Doug Hurley is commanding the first SpaceX Crew Dragon flight with astronauts on board. Listen to him talk about the plans for this
-
01:03
Jupiter Trojan asteroid has unusual comet-like tail - Orbit animation + Image
Added 830 Views / 0 LikesWatch Jupiter Trojan asteroid 2019 LD2;s orbit the sun for 25 years in this orbit animation. New imagery from the University of Hawaiʻi's Asteroid Terrestrial-impact Last Alert System (ATLAS) reveals that it has an unusual comet-like tail. Credit: Space.c
-
15:24
WARNING! Major Texas Flood! Gulf of Mexico June Hurricane? Mexico Earthquake! Mount Etna erupts!
Added 340 Views / 0 LikesMayday Catch-22 day. It's getting retrograde weird.Be awesome. Stay cool.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
-
02:46
Red Red Red Alert! Stay Cool & Play Defense.
Added 318 Views / 0 Likesthis is asteroid fight club information.God bless everyone,T
-
01:21
SpaceX spacesuits are a new breed
Added 339 Views / 0 LikesAstronauts launching to space aboard SpaceX's Crew Dragon spacecraft will be sporting a next-generation spacesuit. It is "designed to be functional, lightweight, and to offer protection from potential depressurization," according to NASA. Credit: Space.co
-
03:14
Space to Ground: Preparing for Launch: 05/22/2020
Added 346 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
-
04:56
Know Your Crew! With Bob Behnken and Doug Hurley
Added 315 Views / 0 LikesThe first astronauts ever to launch on a SpaceX rocket and crew vehicle have been training together for this flight for years, so you’d guess that they know each other pretty well. See for yourself—NASA’s SpaceX Demo-2 astronauts, Doug Hurley and Bob Behn
-
01:10
SpaceX Demo-2 rocket rolled out to launch pad
Added 479 Views / 0 LikesThe SpaceX Demo-2's Crew Dragon spacecraft and Falcon 9 rocket were rolled out to the launch pad at Launch Complex 39A at Kennedy Space Center in Florida on May 21, 2020. It is scheduled to launch NASA astronauts Bob Behnken and Doug Hurley to the Interna
-
01:11
SpaceX Demo-2 Crew Dragon mated to Falcon 9 rocket
Added 375 Views / 0 LikesThe SpaceX Crew Dragon spacecraft that will carry NASA astronauts Bob Behnken and Doug Hurley to the International Space Station was mated to a Falcon 9 rocket on May 20, 2020. Images courtesy SpaceX/NASA/Kim Shiflet / mash mix by Space.com's [Steve Spale
-
01:30
Massive disk found in early universe challenges galaxy formation theories
Added 345 Views / 0 LikesA massive, rotating disk galaxy designated DLA0817g and nicknamed the "Wolfe Disk," formed just 1.5 billion years after the Big Bang. It was discovered using ALMA, the Atacama Large Millimeter/submillimeter Array in Chile. -- Full Story: https://www.space
-
01:02
University Team to Test Technology in Space via NASA Competition
Added 318 Views / 0 LikesAfter winning NASA’s Cube Quest Centennial Challenge ground competition in 2017, team Cislunar Explorers from Cornell University in Ithaca, New York, was one of three teams awarded the opportunity to launch their CubeSat on Artemis I, NASA’s first test fl
-
11:46
Michigan's Broken Dams, Amphan's Landfall, Virginia & Carolinas flood & June Florida Hurricane*?
Added 321 Views / 0 LikesThe weather is getting wild,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
-
09:55
NASA's SpaceX Demo-2 crew arrive in Florida ahead of launch
Added 332 Views / 0 LikesNASA astronauts Doug Hurley and Bob Behnken arrived at the Kennedy Space Center in Florida on May 20, 2020. They are scheduled to launch aboard a SpaceX Crew Dragon spacecraft atop a Falcon 9 rocket on May 27. Credit: NASA
-
02:56
Blastoff! Japan launches HTV-9 cargo ship to space station
Added 432 Views / 0 LikesThe Japan Aerospace Exploration Agency launched the HTV-9 cargo ship atop a Mitsubishi Heavy Industries H-IIB rocket on May 20, 2020. It's the ninth and final flight of the expendable H-II Transfer Vehicle (HTV) spacecraft. JAXA is developing the HTV-X ca
-
04:57
NASA's WFIRST mission renamed after the 'Mother of Hubble'
Added 295 Views / 0 LikesThomas Zurbuchen, NASA's Associate Administrator for the Science Mission Directorate, announced that the Wide Field Infrared Survey Telescope (WFIRST) is now called the Nancy Grace Roman Space Telescope after the "Mother of Hubble."Credit: NASA
-
01:13
Zoom into planet forming 'twist' observed by Very Large Telescope
Added 397 Views / 0 LikesThe European Southern Observatory's (ESO) Very Large Telescope has been used to observe the star AB Aurigae. A detailed look using the telescopes SPHERE instrument has revealed "a ‘twist’ that marks the site where a planet may be forming," according to ES
-
05:19
Red Alert! Michigan Dam FAILS! 2 More Dams Failing! + MAJOR floods coming to NC & Virginia
Added 370 Views / 0 LikesThe Edenville Dam has failed. The Sanford & Smallwood Dams are failing or have already failed. This is an ongoing emergency and evacuations are underway,God bless everyone,T
-
04:12
Red Alert! Michigan Dam fails & 2nd Dam is in danger of failing! 282 Rivers are flooding in USA RN.
Added 344 Views / 0 LikesThe Edenville Dam in Central Michigan has broken and now the Sanford Dam is at risk of failing. Evacuations are underway!God bless everyone,Taccuweather videohttps://www.accuweather.com/en/severe-weather/edenville-dam-breaks-sparking-immediate-evacuations
