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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02:10
SpaceX Crew-4 astronauts enter space station after docking
Added 162 Views / 0 LikesNASA astronauts Kjell Lindgren, Robert Hines, Jessica Watkins and Samantha Cristoforetti from ESA completed ingress of the International Space Station on April 27, 2022 after docking. They were greeted by the SpaceX-Crew-3 astronauts. Watch the launch: ht
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03:25
China's Shenzhou-14 crew launches to Tiangong space station
Added 162 Views / 0 LikesA Chinese Long March 2F rocket launched astronauts Chen Dong, Liu Yang and Cai Xuzhe to the Tiangong space station On June 4, 2022. Full Story: https://www.space.com/china-shenzhou-14-mission-launch-successCredit: China Central Televsion
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01:09
Long-duration solar flare spurs massive coronal mass ejection!
Added 162 Views / 0 LikesAn M3-class solar flare that lasted about 3 hours created a massive coronal mass ejection on June 13, 2022. The Solar Dynamics Observatory (SDO) and the Solar and Heliospheric Observatory (SOHO) captured the fireworks.Credit: Space.com | footage courtesy:
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02:35
Space to Ground: Celestial Immunity: 05/14/2021
Added 161 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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17:30
Transporter-2 Mission
Added 161 Views / 0 LikesSpaceX is targeting Tuesday, June 29 for launch of Transporter-2, SpaceX’s second dedicated SmallSat Rideshare Program mission, from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The 58-minute launch window opens at 2:
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00:15
Word Bank: Optical Astronomy
Added 161 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_optical-astronomy/Credit:NASA & ESA
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02:56
X-ray rings spotted around black hole - Take a tour
Added 161 Views / 0 LikesNASA's Chandra X-ray Observatory and the Neil Gehrels Swift Observatory detected "X-rays ricocheting off dust clouds" in binary system V404 Cygni, according to the Chandra team. Credit: NASA/CXC/A. Hobart
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06:06
Ingenuity flies on Mars, Venus flyby sounds & Chinese spacewalk in VFS Weekly
Added 161 Views / 0 LikesNASA's Mars helicopter Ingenuity completed its 12th flight, data from the ESA/JAXA BepiColombo spacecraft's Venus flyby has been sonified, the Caldor wildfire in California was seen from space, China did some spring cleaning and took a spacewalk outside t
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01:38
Mars is Very Far for Humans – clip from “Mars Calling” 4K Documentary
Added 161 Views / 0 LikesJust getting a vehicle to the red planet is a challenge. But the limiting factor isn’t the spaceships. It’s the human crew inside. And what will happen to them once they arrive? Stream the full 4K film “Mars Calling” on MagellanTV: https://www.magellantv.
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34:01
Jupiter got Smacked! Major Hurricane to hit the NE? Inflation trouble! Putin quarantines! & MORE.
Added 161 Views / 0 Likesit's a wild world.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:33
my Summer 2021 part 1
Added 161 Views / 0 Likesa rough look at part of my summer.thank you to asteroid fight cluband all the cool people of Earth.music by stereo occult & silverbluesun,God bless everyone,T
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15:14
Large asteroids to fly past Earth! lots of Volcano activity! COOL is on the way! Lucy Launch! NW AR
Added 161 Views / 0 Likesi hope you have a wonderful weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:15
Time-lapse of CW Leonis
Added 161 Views / 0 LikesThe NASA/ESA Hubble Space Telescope celebrates Halloween this year with a striking observation of the carbon star CW Leonis, which resembles a baleful orange eye glaring from behind a shroud of smoke.The bright beams of light radiating outwards from CW Le
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01:10
Large object impacts Jupiter! Captured by Planetary Observation Camera
Added 161 Views / 0 LikesThe Planetary ObservatioN Camera for Optical Transient Surveys (PONCOTS) at Kyoto University was used to capture an object impacting Jupiter on Oct. 15, 2021. Credit: Space.com | footage courtesy: OASES / PONCOTS / Ko Arimatsu | edited by [Steve Spaleta](
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03:51
SpaceX Crew-2 returns, Crew-3 launches, China spacewalk & more in VFS Weekly
Added 161 Views / 0 LikesSpaceX Crew-2 splashed down off the coast of Florida and the Crew-3 mission launched. China conducted spacewalk with female taikonaut for the first time and see something big impacted Jupiter. [SpaceX's Crew Dragon Endurance arrives at space station with
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36:10
Starlink Mission
Added 161 Views / 0 LikesSpaceX is targeting Saturday, November 13 for a Falcon 9 launch of 53 Starlink satellites to orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The instantaneous launch window is at 7:19 a.m. EST, or 12:19 UTC.Th
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00:41
Astra rocket test-fired prior to launch attempt
Added 161 Views / 0 LikesSpace startup Astra conducted a static fire test of their 43-foot-tall (13 meters) Launch Vehicle LV0007 on Nov. 18, 2021. Astra aims to reach orbit for 1st time with early Friday launch: Watch it live https://www.space.com/astra-fourth-orbital-launch-att
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02:20
SAOCOM 1B | Launch and Landing
Added 161 Views / 0 LikesSped up footage from an onboard camera during Falcon 9’s launch of the SAOCOM 1B mission – SpaceX’s first launch to a polar orbit from the East Coast. After launching from Space Launch Complex 40 at Cape Canaveral Air Force Station, Falcon 9’s first stage
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01:04
Perseverance captured new video of Mars helicopter in flight
Added 161 Views / 0 LikesNASA's Perseverance rover rover captured footage of Ingenuity's 13th flight on the Red Planet on Sept. 4, 2021.Credit: NASA/JPL-Caltech/ASU/MSSS