A space station’s operation, therefore, requires a transportation system to ferry crews and hardware and to replenish the propellant, air, water, food, and such other items as are consumed during routine operations. To make the most efficient use of its carrier vehicle’s capacity, a space station is launched vacant, and its crew members-and sometimes additional equipment-follow in separate vehicles. Small space stations are launched fully assembled, but larger stations are sent up in modules and assembled in orbit. These include observations of the Sun and other astronomical objects, study of Earth’s resources and environment, military reconnaissance, and long-term investigations of the behaviour of materials and biological systems-including human physiology and biochemistry-in a state of weightlessness, or microgravity. Depending on its configuration, a space station can serve as a base for a variety of activities. Space station, an artificial structure placed in orbit and having the pressurized enclosure, power, supplies, and environmental systems necessary to support human habitation for extended periods. For more on the debate about colonizing space, visit. Others argue that living in space is science fiction and that we should concentrate on improving life on Earth instead of potentially ruining another planet or moon. Some argue humans have a moral duty to save our species from extinction, and space colonization is one way of doing so. Space colonization, with space stations or otherwise, is widely debated. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.
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COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.It was created by digital artist Robert Jahns and shared to his Instagram account to commemorate Earth Day in 2014. The fake ISS selfie has been circulating on the internet for years. Here's a look at the original photograph (left) and the composite image (right): While Hoshide's photograph can truly be described as a "selfie from the ISS," the background of Hoshide's photo does not match the one shown above. The Expedition 32 mission ended yesterday when an attached capsule undocked with the ISS and returned some of the crew to Earth. This image joins other historic - and possibly artistic - self-portraits taken previously in space. Visible in this outworldly assemblage is the Sun, the Earth, two portions of a robotic arm, an astronaut's spacesuit, the deep darkness of space, and the unusual camera taking the picture. Is it art? Earlier this month, space station astronaut Aki Hoshide (Japan) recorded this striking image while helping to augment the capabilities of the Earth-orbiting International Space Station (ISS). NASA featured Hoshide's selfie as their "Astronomy Picture of the Day" on Sept. The portion of this image featuring the astronaut comes from a 2012 photograph that was taken by Japanese astronaut Akihiko Hoshide. This is not a genuine selfie taken outside of the ISS but a composite of two or more images.
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