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)
-
04:59
Monster Storm to Hit the Pacific Northwest Coast tomorrow! 36 foot waves 100 mph winds & Flooding
Added 577 Views / 0 LikesMonster Storm to Hit the Pacific Northwest Coast tomorrow! 36 foot waves 100 mph winds & Flooding
-
00:50
NASA Probe's Approach to Ultima Thule - Featuring Brian May Music
Added 337 Views / 0 LikesNASA's New Horizons probe flew by 2014 MU69 "Ultima Thule" on Jan. 1, 2019. Watch the approach with a soundtrack written by Queen's Brian May. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/National Optical A
-
02:00
Spuds In Space! Pluto Moon's Weird Spin Animated | Video
Added 618 Views / 0 LikesSpuds In Space! Pluto Moon's Weird Spin Animated | Video
-
01:26
NASA Updates Near-Earth Asteroid Count | Planetary Defense: By the Numbers - July 2022
Added 106 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, & characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Want more? Learn more about
-
02:20
Space to Ground: Rocket and Groot: 01/12/2018
Added 477 Views / 0 LikesSpace to Ground: Rocket and Groot: 01/12/2018
-
01:14
'Fastest orbiting asteroid' in our solar system - 5-year time-lapse animated
Added 155 Views / 0 LikesAsteroid 2021 PH27 orbits the sun in 113 days. It has the shortest orbital period of any known asteroid in the Solar System," according to NSF's Noir Labs. Full Story: https://www.space.com/solar-system-fastest-orbiting-asteroid-2021-ph27Credit: NASA/JPL-
-
01:11
China launches Yaogan-34 satellite! See rocket sheds tiles in slo-mo
Added 226 Views / 0 LikesA Long March-4C rocket launched the Yaogan-34 remote sensing satellite from the Jiuquan Satellite Launch Center in northwest China on April 30, 2021. The rocket sheds insulation tiles during lift off, a normal occurrence. Credit: Space.com | footage court
-
04:04
Texas Tornadoes! Invest 90E & Presidential Medical Advice Sarcasm!
Added 311 Views / 0 Likeswhatever.T
-
Watch live! China launches Tianzhou-6 cargo mission to Tiangong space station
Added 92 Views / 0 LikesWatch live as a Long March 7 rocket launches the Tianzhou-6 cargo spacecraft to the Tiangong space station on May 10, 2023. The scheduled launch time is at 9:22am EDT ( 21:22pm BJT) and the livefeed will start from 9:15-9:30am EDT (21:15-22:30 BJT) and wi
-
00:50
Panning across the galactic centre
Added 556 Views / 0 LikesPanning across the galactic centre
-
12:00
The USA is about to enter a VERY stormy period. 5 storms in 16 days?
Added 304 Views / 0 LikesBuckle up.God bless everyone,Thttps://www.paypal.me/thornewsmail5430 Birdwood rd. #416Houston, Texas 77096crankywxguy bloghttp://www.stormhamster.com/entry2/e040219b.htmhttps://weather.com/storms/severe/news/2019-04-01-severe-thunderstorms-forecast-south-
-
01:47
Texas! Beware Frankenstein Tropical Storm Bill Nye!
Added 610 Views / 0 LikesTexas! Beware Frankenstein Tropical Storm Bill Nye!
-
01:02
James Webb Space Telescope's first targets - See the list!
Added 123 Views / 0 LikesNASA will release full color James Webb Space Telescope images of the Carina Nebula, exoplanet WASP-96 b, Southern Ring Nebula, Stephan’s Quintet and SMACS 0723 on July 11 and 12. See a preview of the 5 targets from previous observations and an artist imp
-
12:55
Future Storms & Strange Skies, GOD & Bad Guys
Added 443 Views / 0 LikesFuture Storms & Strange Skies, GOD & Bad Guys
-
01:08
Hurricane Ida nears landfall in NOAA satellite time-lapse
Added 179 Views / 0 LikesHurricane Ida was captured by NOAA GOES-East satellite on Aug. 28-29, 2021 as it neared landfall in Louisiana. -- Hurricane Ida looks absolutely massive from space in these astronaut photos https://www.space.com/hurricane-ida-category-4-storm-astronaut-ph
-
27:10
Black Auroras! Chinese Rocket Danger! Solar Minimum Conditions! Hurricane & Wildfire Seasons!
Added 202 Views / 0 LikesThank you to Asteroid Fight Club for being so Awesome!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096
-
01:22
Black Hole pair produce flares 'brighter than 1 trillion stars'
Added 324 Views / 0 LikesA pair of black in galaxy OJ 287 orbit each other and "twice every 12 years, the smaller black hole crashes through the enormous disk of gas surrounding its largest companion," according to NASA's Jet Propulsion Laboratory. The crashes produce super brigh
-
01:41
Axiom Space Ax-2! 2nd all-private crew to space station explained
Added 74 Views / 0 LikesA SpaceX Falcon 9 rocket will launch Crew Dragon Endeavour with the Axiom Space Ax-2 crew no earlier than May 21, 2023. The crew includes Commander Peggy Whitson, pilot John Shoffner, and mission specialists Ali Alqarni and Rayyanah Barnawi. Facts about A
-
02:55
Next Stop: Eta Carinae Star System (feat. The Claypool Lennon Delirium) | Video
Added 721 Views / 0 LikesNext Stop: Eta Carinae Star System (feat. The Claypool Lennon Delirium) | Video
-
05:46
Black Hole Image Explained by Theoretical Physicist
Added 422 Views / 0 LikesAvery Broderick from the Perimeter Institute and University of Waterloo explains the image of the black hole at the center of the Messier 87 galaxy. -- Eureka! Black Hole Photographed for 1st Time: https://www.space.com/first-black-hole-photo-by-event-hor