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)
-
01:03
Sharp Martian rocks turn Curiosity rover around
Added 199 Views / 0 LikesNASA's Curiosity rover has encountered patches of sharp “gator-back” rocks causing mission planners to look for a new route to continue exploring Mount Sharp. Credit: Space.com | footage courtesy: NASA/JPL-Caltech/MSSS | edited by Steve Spaleta
-
28:32
Space Chat! Virgin Galactic prepares to launch, Methane on Enceladus and Hubble struggles on
Added 198 Views / 0 LikesToday (July 9), Space Chat will explore what's new in space, including Virgin Galactic's upcoming crewed test flight, exciting discoveries on Enceladus and Hubble's ongoing issues.Every Friday at 1 p.m. EDT (1800 GMT), Chelsea Gohd hosts Space Chat, which
-
06:34
SpaceShipTwo soars, Ingenuity anomaly, Blood Moon & more in VFS Weekly
Added 198 Views / 0 LikesVirgin Galactics SpaceShipTwo Unity flew to suburbital space from New Mexico for the first time, NASA Ingenuity Helicopter experienced an anomaly during its 6th flight on Mars, skywatchers in California and China were treated to the Super Flower Blood Moo
-
29:48
Space Chat! UFO Answers Coming Soon?
Added 198 Views / 0 LikesThis Friday (June 4), Space Chat will further explore the latest declassified UFO footage. The Pentagon's long-awaited UFO report to Congress is due this month! We're hoping it will shed light on these mysterious flying objects. For now though, host Chels
-
10:05
Super hot heat & severe wx in the north USA & Canada. June 14th Hurricane Watch. Salton Sea CA Eq
Added 198 Views / 0 Likesthis coming eclipse energy tho.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
-
00:40
Watch an ExoMars high-altitude parachute test in slow-mo
Added 198 Views / 0 LikesA stratospheric balloon carried a "dummy descent module' to about 18 miles (29 km) above Sweden for a drop test. After it was release the 49-foot-wide (15 m) first stage main parachute was deployed. Full Story: Europe's ExoMars parachute still experiencin
-
00:15
Word Bank: Exoplanet
Added 198 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_exoplanet/Credit:ESA/Hubble, M. Kornmesser
-
02:14
Apollo 15 landing site visualized from orbiter imagery (with SEVA audio)
Added 198 Views / 0 LikesThe Apollo 15 landing site has been visualized using Lunar Reconnaissance Orbiter imagery. The audio is from the only stand-up extravehicular activity (SEVA) of the Apollo program, conducted on July 31, 1971.Credit: NASA Goddard Space Flight Center
-
01:45
Cygnus NG-16 mission to space station - What experiments are onboard?
Added 198 Views / 0 LikesA Northrop Grumman Cygnus spacecraft will carry several experiments to the International Space Station. The NG-16 mission is scheduled to launch in August 2021. Credit: NASA
-
08:35
Red Alert! October 13th ish looks like Wild Weather for USA & South East Asia
Added 198 Views / 0 Likesit's going to be a wild weather month, dude.God bless everyone,5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
07:38
Red Alert! Major Severe Weather Today, Tomorrow & the day after Tomorrow + Solar storm Direct Hit!
Added 198 Views / 0 LikesThe two weeks of wild weather begins today.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:16
US-Russian crew fast flight to space station in these amazing highlights
Added 198 Views / 0 LikesThe second fastest crewed trip to the International Space Station is in the books, clocking in at aboutg three hours and 24 minutes. Cosmonauts Oleg Novitskiy (the commander), Pyotr Dubrov (flight engineer) and NASA astronaut Mark Vande Hei were aboard th
-
07:05
Launching Siona's spaceship in Fortnite Chapter 2 Season 3!
Added 198 Views / 0 LikesFind out if Space.com's Tariq Malik (aka Hipponaut) has the right stuff to launch Siona's spaceship in this secret challenge from Fortnite Chapter 2 Season 3.Credit: Space.com / game footage courtesy: Epic Games
-
08:30
Support is increasing for 2 Tropical Cyclones simultaneously in the Gulf & 340 WILD FIRES NOW.
Added 198 Views / 0 LikesIt's about to get crazy.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
11:28
RED ALERT! Texas Blizzard? Massive Storm for USA & Europe Feb 13-15th.
Added 198 Views / 0 LikesWith an artic blast meeting up with a very wet atmosphere the middle of February is shaping up to look like a blockbuster event.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewi
-
05:11
Dangerous Multiple Tornado Outbreak happening in Alabama right now in this 40 hour storm widow.
Added 198 Views / 0 LikesIt's a crappy and dangerous st. patrick's day so far.God bless everyone,
-
15:44
Red Alert! Tornadoes in South Carolina & a Stormy day ahead! + me talking about Vacation
Added 198 Views / 0 LikesY'ALL ARE VERY COOL.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
-
10:20
Super Wild Weather December Continues! SIX SUNSPOTS! Wild Dust Bowl Winds storm & Cat 5 Typhoon!
Added 198 Views / 0 LikesIt's too hot, man. it's too hot.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
10:22
Red Alert! Christmas Eve ArkStorm for California & Christmas TORCH for Middle of USA & NE ICE?!?
Added 198 Views / 0 LikesBuckle up for a wild 2021 Christmas Eve & Christmas Weather Wise.Pray for the best, prepare for the worst.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashAp