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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)

 

  • 17:55 New Nor'Easter* underway, Southwest Floods coming & the flooding of Venice

    Nor'Easter* underway, Southwest Floods coming & the flooding of Venice

    by admin Added 5 Views / 0 Likes

    It's going to be a wet mess off the East coast.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/check out the crankywxguy bloghttp://www.storm

  • 36:33 New Civilization is on the Brink! So please Turn On Your Christmas Lights!

    Civilization is on the Brink! So please Turn On Your Christmas Lights!

    by admin Added 6 Views / 0 Likes

    This one is straight from the heart.God bless everyone,T Eric Lewison5430 Birdwood Rd. #416 Houston, Texas 77096

  • 00:46 New China Tests Mars Lander On a Tether

    China Tests Mars Lander On a Tether

    by admin Added 9 Views / 0 Likes

    China tested their Mars lander on a tether on Nov. 15, 2019 in Huailai County of north China's Hebei Province. Story: China Simulates a Mars Landing for 2020 Mission to Red Planet: https://www.space.com/china-simulated-mars-landing-2020-mission.htmlCredit

  • 02:09 New Space to Ground: Cosmic Repairs: 11/15/2019

    Space to Ground: Cosmic Repairs: 11/15/2019

    by admin Added 6 Views / 0 Likes

    NASA'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

  • 01:06 New See Neptune Moons' Unusual Orbital Dance

    See Neptune Moons' Unusual Orbital Dance

    by admin Added 8 Views / 0 Likes

    Neptune moons Naiad and Thalassa have unusual orbits. Learn about there here. -- Planet Neptune: Facts About Its Orbit, Moons & Rings: https://www.space.com/41-neptune-the-other-blue-planet-in-our-solar-system.htmlCredit: NASA/JPL-Caltech

  • 01:11 New Suiting Up for a Spacewalk

    Suiting Up for a Spacewalk

    by admin Added 7 Views / 0 Likes

    On Friday International Space Station commander Luca Parmitano of ESA (European Space Agency) and NASA’s Andrew Morgan start a series of spacewalks to upgrade the cooling system on the Alpha Magnetic Spectrometer. Each of those spacewalk days will start w

  • 00:51 New See the Apollo 12, 14, and 17 Landing Sites from Lunar Orbit

    See the Apollo 12, 14, and 17 Landing Sites from Lunar Orbit

    by admin Added 7 Views / 0 Likes

    NASA's Lunar Reconnaissance Orbiter captured imagery of NASA's Apollo 12, 14, and 17 landing sites. -- Watch an Apollo 12 4-Part Mini Doc: https://videos.space.com/m/4FntMAPy/ep1-stormy-launch-to-the-ocean-of-storms?list=vceLtQahCredit: NASA Goddard Space

  • 03:06 New Flashback: Apollo 12's Rocket Struck By Lightning Twice During Launch

    Flashback: Apollo 12's Rocket Struck By Lightning Twice During Launch

    by admin Added 7 Views / 0 Likes

    On Nov. 14, 2019, the Saturn V rocket launching NASA's Apollo 12 mission to the moon was struck by lightning twice a few seconds after launch. -- Watch an Apollo 12 4-Part Mini Doc: https://videos.space.com/m/4FntMAPy/ep1-stormy-launch-to-the-ocean-of-sto

  • 02:23 New I don't care what you say we are going to be Alright.

    I don't care what you say we are going to be Alright.

    by admin Added 8 Views / 0 Likes

    I'm feeling rebelliously optimistic.I love y'all. I am gratefulwe made it this far.Happy Thanksgiving, Merry Christmas & Have great Holidays.God bless everyone,TJesus Christ is my King of Kingsand Rock and Roll has saved me soulmore than once.music byTroy

  • 00:46 New Liftoff! China Launches 5 Satellites Atop Long March-6 Rocket

    Liftoff! China Launches 5 Satellites Atop Long March-6 Rocket

    by admin Added 16 Views / 0 Likes

    A Long March-6 rocket launched 5 Ningxia-1 remote-sensing satellites on Nov. 13, 2109 from the Taiyuan Satellite Launch Center in north China. -- Latest News on China's Space Program: https://www.space.com/topics/china-space-programCredit: China Central T

  • 18:37 New Big Cool Down, Australia Wildfires, New Sunspot, Alaska Volcano Eruption

    Big Cool Down, Australia Wildfires, New Sunspot, Alaska Volcano Eruption

    by admin Added 8 Views / 0 Likes

    it's beginning to feel a lot like Christmas!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewscheckout the crankywxguy blog for

  • 00:51 New Behold 'Arrokoth' - NASA's New Horizons Target Has Been Officially Named

    Behold 'Arrokoth' - NASA's New Horizons Target Has Been Officially Named

    by admin Added 8 Views / 0 Likes

    2014 MU66 (nicknamed 'Ultima Thule') has been officially named "Arrokoth." -- New Horizons' 'Snowman' in the Kuiper Belt: https://www.space.com/32049-kbo-2014-mu69.htmlCredit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Ins

  • 00:57 New All-Female Spacewalk Captured by Tethered GoPro

    All-Female Spacewalk Captured by Tethered GoPro

    by admin Added 8 Views / 0 Likes

    Watch tethered Go-Pro camera footage of NASA astronauts Jessica Meir and Christina Koch working outside the International Space Station on Oct. 18, 2019. -- NASA Astronauts Make History with 1st All-Woman Spacewalk: https://www.space.com/first-all-woman-s

  • 01:53 New Voyager 2 Leaves the Solar System

    Voyager 2 Leaves the Solar System

    by admin Added 9 Views / 0 Likes

    It was confirmed in November of 2019 that NASA's Voyager 2 spacecraft left our solar system in November of 2018.

  • 01:19 New See the 2019 Mercury Transit in Stunning 4K

    See the 2019 Mercury Transit in Stunning 4K

    by admin Added 8 Views / 0 Likes

    Mercury's transit of the Sun on Nov. 11, 2019 was captured by NASA's Solar Dynamics Observatory. -- Miss the Mercury Transit of 2019? You'll Have to Wait 13 Years for the Next One: https://www.space.com/next-mercury-transit-when-2032.htmlCredit: NASA's Go

  • 00:49 New 2019 Mercury Transit Captured by NASA Spacecraft

    2019 Mercury Transit Captured by NASA Spacecraft

    by admin Added 12 Views / 0 Likes

    On Nov. 11, 2019, the planet Mercury crossed the face of the sun in a rare transit and NASA was ready. See views in different wavelengths from NASA's powerful Solar Dynamics Orbiter sun observatory in space! -- Rare Mercury Transit, the Last Until 2032, T

  • 1:23:09 New Starlink Mission

    Starlink Mission

    by shub Added 12 Views / 0 Likes

    SpaceX is targeting Monday, November 11 at 9:56 a.m. EST, 14:56 UTC, for launch of 60 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. A backup launch opportunity is available at 9:34 a.m. EST, 14:34

  • 1:23:02 New Starlink | Mission Control Audio

    Starlink | Mission Control Audio

    by shub Added 10 Views / 0 Likes

    This is the mission control audio only for the Starlink launch. If you would like to see the live launch coverage please head over to SpaceX.com/Webcast to watch the full coverage.There will be long periods of silence

  • 17:41 New the big FREEZE, Medicane, Mercury Transit & Retrograde & Tropical Activity?

    the big FREEZE, Medicane, Mercury Transit & Retrograde & Tropical Activity?

    by admin Added 10 Views / 0 Likes

    Happy Veteran's Day!Thank you to all the real life super heroes.2019 is highly anomalous. Winter in the Fall and tropical actionin the Mid Atlantic?God bless everyone,TT LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.ven

  • 03:15 New Blastoff! SpaceX Launches 60 More Starlink Satellites

    Blastoff! SpaceX Launches 60 More Starlink Satellites

    by admin Added 8 Views / 0 Likes

    SpaceX launched 60 Starlink Satellites on Nov. 11, 2019 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. -- Full Story: https://www.space.com/spacex-starlink-launch-fourth-rocket-landing-success.htmlCredit: SpaceX

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