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Space. Space is a three-dimensional continuum containing positions and directions. [1] In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. [2]
Outer space (or simply space) is the expanse beyond celestial bodies and their atmospheres. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum [1] of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust.
SpaceX's Falcon 9 rocket lifted off from the Vandenberg Space Force Base in Southern California at 4 a.m. EDT on Wednesday, carrying into space what the NRO said was the "first launch of the NRO's ...
The rocket reached space on its second flight that took place in November 2023. SpaceX is the first private company to develop a liquid-propellant rocket that has reached orbit; to launch, orbit, and recover a spacecraft; to send a spacecraft to the International Space Station; and to send
Space exploration is the use of astronomy and space technology to explore outer space. [1] While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one ...
The International Space Station(ISS) is a large space stationassembledand maintained in low Earth orbitby a collaboration of five space agencies and their contractors: NASA(United States), Roscosmos(Russia), JAXA(Japan), ESA(Europe), and CSA(Canada). The ISS is the largest space station ever built.
Galaxy. NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light-years in diameter and approximately 60 million light-years from Earth. A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
Human spaceflight. The first feature-length fiction film to be filmed in space (some scenes) by professional film-makers, the Russian film The Challenge was filmed onboard ISS in October 2021 by Russian director Klim Shipenko with actress Yulia Peresild starring. [note 1] A new record was set for the largest number of humans in orbit (14) on 16 ...