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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Fireball & Space Debris over the USA tonight! Drone & UFO talk! Carolina ICE this week?
Added 39 Views / 0 LikesThank you for being awesome.Stay cool and have a Merry Christmas& wonderful holidays, y'all!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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Kilauea Volcano Eruption Glows in Stunning Observatory Time-Lapse
Added 491 Views / 0 LikesMultiple fissures from the Kilauea volcano eruptions are producing a glow that was captured by a Gemini Observatory sky camera on May 21-22, 2018. -- In Photos: Hawaii's Kilauea Volcano Eruption as Seen from Space: https://www.space.com/40637-hawaii-kilau
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Massive filament eruption on Sun captured by NASA's Solar Dynamics Observatory
Added 132 Views / 0 LikesNASA's Solar Dynamics Observatory captured a huge filament eruption in multiple wavelengths on Sept. 16, 2023. The eruption created a coronal mass ejection that "should hit Earth's magnetic field on Sept. 19th," according to Spaceweather.comCredit: Space.
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04:00
Touchdown! SpaceX’s 1st Reused Rocket Lands on Drone Ship | Video
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01:26
Near-Earth Object Count Updated | Planetary Defense: By the Numbers - November 2022
Added 152 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, and characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Learn more about Planetar
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Space Station Live: Synthetic Muscle
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Space to Ground: Dreams of New Science: 12/17/2021
Added 238 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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Zooming in on the exotic binary star AR Scorpii
Added 659 Views / 0 LikesZooming in on the exotic binary star AR Scorpii
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Skywatching Venus: 2020's greatest brightness in April
Added 477 Views / 0 LikesFollowing a conjunction with the moon on April 26, Venus will get brighter on April 27 and reach peak brightness for 2020 on April 28. -- See the bright 'evening star' Venus: https://www.space.com/bright-venus-moon-conjunction-april-2020.htmlBest telescop
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Mars helicopter unfolded, Starship exploded & Curiosity selfie | VFS Weekly
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Blastoff! SpaceX launches 27 Starlink satellites to complete doublehead, nails landing
Added 24 Views / 0 LikesA SpaceX Falcon 9 launched 27 Starlink satellites from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California on Jan. 21, 2025 at 10: 45 a.m. ET (7:45 a.m. PT - local time). Full Story: https://www.space.com/space-exploration/la
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New Tarantula Nebula Image is Extremely Sharp
Added 558 Views / 0 LikesThe Tarantula Nebula is 160,000 light-years away in the Large Magellanic Cloud. The VLT Survey Telescope at ESO’s Paranal Observatory has caputered a new image of the nebula and its surrounding that they are touting as the “sharpest image ever of this ent
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RED ALERT! October 3rd ish is probably going to be wild & weird.
Added 130 Views / 0 LikesMars crossing over the South Node, yo.God bless everyone,T
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HURRICANE NICOLE TO HIT SOUTH FLORIDA IN 3 DAYS + Other Weird Weather & Strange Stuff
Added 162 Views / 0 LikesYou are amazing.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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NASA 360 Talks: Our Fascinating Solar System
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01:27
At least 70 new rogue planets in Milky Way detected
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Curiosity Spots Mercury Transiting Sun | Video
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08:53
Space Chat! A Special Tribute To Astronaut Micheal Collins
Added 274 Views / 0 LikesIn this special episode of Space Chat, senior writer Chelsea Gohd talks about the life and legacy of NASA astronaut Michael Collins, who passed away on Apr. 28, 2021 at the age of 90. From the Gemini program to Apollo 11 and beyond, this so called 'forgot
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Debris from SpaceX Starship explosion streaks over Turks and Caicos
Added 38 Views / 0 LikesAlexandra Duggan captured SpaceX Starship debris streaking over Turks and Caicos shortly after it exploded on Jan. 16, 2025. Footage courtesy: Alexandra Duggan | Instagram: @aleventure (https://www.instagram.com/aleventure/)Music: "Revenge Me" by Bonnie G