Skip to main content

spacecraft :how spacecraft take off and land on earth

spacecraft :how spacecraft take off and land on earth

 1. Spacecraft

 The term spacecraft can refer to any vehicle that travels through space. In recent years, the term has become synonymous with man-made objects used to travel into outer space. These vehicles are created from metals, plastics, ceramics, composites and other materials. They have been designed for many purposes including exploration, colonization, scientific research and military operations.

 Spacecraft can range in size from tiny satellites to huge interplanetary probes, but regardless of their sizes they all share common characteristics. Most spacecraft are composed of several systems that work together to provide propulsion and control. Propulsion is how a spacecraft moves. Control refers to a mechanism that allows a spacecraft to maintain its position relative to distant points. Some spacecraft use reaction engines while others make use of rockets. Rockets are fueled by chemicals, whereas reaction engines use nuclear fission or fusion processes. A third type of propulsion system, ion drives, does not require fuel. Instead, these craft generate thrust using electrical energy.

 The largest spacecrafts currently in operation are the International space station and the Chinese space station Tiangong-1 (or Heavenly Palace). Both were launched into orbit in 2011. These spacecrafts have a combined mass of approximately 18 million kilograms. The ISS was constructed under the leadership of NASA's  Johnson Space Center in Houston, Texas, USA. Tiangong-1 was built by China's national manned space program.


spacecraft :how spacecraft take off and land on earth


2.Space Shuttle

 The Space Shuttle program was designed to launch payloads into orbit and return astronauts safely to Earth. To accomplish this, a large external tank carried liquid hydrogen and liquid oxygen into orbit where it was used to fuel rocket boosters. Once these were exhausted, the orbiter would take over. The shuttle could carry a maximum of seven passengers and cargo. After a mission, the orbiter performed a series of tests to ensure everything worked properly. If not, it crashed and burned.

3. Astronauts

 Astronauts are individuals who travel to outer space beyond low Earth Orbit (LEO). They have been going to space since 1961 when Yuri Gagarin became the first person to travel in space. He spent just over 108 minutes in orbit before returning safely to Earth. Since then, humans have traveled to space faster than any previous time and stayed longer than ever before. An astronaut works under the direction of a mission control team that helps them operate while they are in space. A crew typically consists of three people who work together using various communications equipment. One member usually stays behind aboard the Earth bound vessel. This person is known as a flight engineer or CAPCOM.

how spacecraft land on earth ?
 well this is a separate process in this the pilot ......read more
Labels:

Comments

Post a Comment

Popular posts from this blog

Exoplanets holds a better survival than Earth

 Exoplanets holds a better survival than Earth ■Exoplanets are those planets that have a rocky surface like Earth, Mars etc. and found outside our solar system.  We have heard a term SUPER - EARTH A Super earth is  an extra solar planet with a mass higher than our earth but lower mass than " ice giants" such as Uranus, Neptune. examples of super earth are COROT - 7b{ICARUS}, GJ1214b{SHESHA}, KEPLER - 440b. ■  Reasearchers had already discovered many planets similar to our mother EARTH but very recent studies has opened up new mysterious facts revealed "these SUPER - EARTHS full of Hydrogen and Helium. Featured Articles  💙 Mission Mangal ■SOME FACTS ABOUT HYDROGEN AND HELIUM 1} HYDROGEN - ●Most abundant element on Earth. ●Alternative fuel source [with a very high energy] ●fuel cells in rockets or gasoline powered cars. 2}HELIUM - ●Second most abundant element in the universe. ●used in air balloons. ●source of energy of sun and stars. ■These exoplanets  ...
Post a Comment
Read more

Nasa jpl

 Nasa jet propulsion laboratory (JPL) 1)establishment - 31 october 1936  ■ owned by Nasa and managed by California institute of technology ( Caltech )  ■ Jpl is a federally funded research centre.  ■ director & vice-president of Caltech - LAURIE LESHIN.  2)aiming for  - to understand our place in the universe, and to search for the possibility of life beyond the Earth. It is also known for its planetary exploration mission.  3)popular projects - ■Mars reconnaissance orbiter ■Dawn ■Mars exploration rover  ■Kepler ■Curiosity  ■Europa clipper 4)average salary - $85,085 annual -for nasa jpl jobs. read more interesting article -  ● origin of life on earth ● Hubble space telescope  ● What will happen if someone falls on Jupiter  5)gallery-  6)is Nasa and nasa jpl does same  work? The jpl or laboratory's primary function is the construction & operation of planetary robotic spacecraft, though it also conducts Earth -...
1 comment
Read more

Research: The mass of a black hole is 4.4 times the mass of sun | Binary systems | black hole - ISC

 Research: The mass of a black hole is 4.4 times the mass of sun|Binary systems|black hole NASA  and European Space Agency(ESA) for the first time measured the mass of a black hole moving in space with the one and only The Hubble Space Telescope (HST). Until now the mass of a black hole determined on the basis of position of binary systems or galaxies. Large black holes were belived to occur only with companion stars , but for the first time a single black hole has occured .  The discovered black hole is believed to be about 80 light years away from our galaxy. Earlier it was estimated that it is 5000 light years away. Stars increase its mass by interacting with another star or its comapnion star. When the mass increased it explodes called Supernova.  Remants called as 'neutron star'. When remanant is bery large it is called "black hole".  According to scientists the mass of a neutron star is between 1.6 to 4.4 times the mass of sun. The discoveries till n...
Post a Comment
Read more