Space Science and Technology
In this chapter we will discuss what space science is and how technology influences Space science. We will focus more on outer space, outer space includes Earth and all other planets, stars, galaxies, etc.
Outer space also contains low particle density (largely a plasma of hydrogen and helium) and electromagnetic radiation, neutrinos, dust, cosmic rays and fields. magnetic.
During the 20 th century, humans began the physical exploration of space using balloon flights to high altitude. Later, these balloon flights were replaced by advanced technology, i.e. rocket, space shuttle, etc.
In 1961, Russian scientist Yuri Gagarin brought achieved historic achievementrisk by sending an unmanned spaceship into space.
What is a satellite?
Technically, the satellite is an advanced technology (machine) launched into space with the aim of revolving around the Earth and collecting targeted data.
The satellite does not have any specific shape as such; however, it has two essential parts -
Types of Satellites
In this section we have the different types of Satellites. According to the purpose, the satellites can be classified as follows -
It is mainly designed for communication purpose. It contains the transmitter and the answering machine; these instruments help transmit data.
Earth Observation Satellite
This satellite helps find the earth's resources, and also helps in disaster management, etc. It is therefore essentially a remote sensing satellite.
Such a satellite helps navigation. It is therefore essentially a global positioning satellite.
This satellite is exclusively designed for weather forecasting. It has a high resolution camera which takes pictures of the weather system and sends it.
Solar synchronous polar orbit
A solar synchronous polar orbit, also known as a sun-synchronous orbit, is one near the polar orbit around the Earth where the satellite is actually placed.
The advantage of such an orbital placement is that it has constant sunlight which ultimately helps with imaging, espionage and meteorological satellite.
The satellite in sun-synchronous orbit most likely crosses the equator about twelve times a day; this happens each time around 3:00 p.m. local average time.
A solar-synchronous polar satellite is placed at an altitude of approximately 600 to 800 km with periods between 96 and 100 minutes. Such a satellite remains tilted by about 98.70. 90 o represents a polar orbit and 0 o represents an equatorial orbit.
A geosynchronous orbit has a period orbital, which is the rate of rotation of the Earth. A sidereal day is equivalent to 23 hours, 56 minutes and 4 seconds.
Satellites in such an orbit are usually launched in an easterly direction. To calculate the distance of a satellite in the geosynchronous orbit, Kepler's third law is used.
Geostationary orbit is a special caseized in geosynchronous orbit. It is a circular geosynchronous orbit, which is tilted 0 o to the equatorial plane of the Earth.
A satellite in a geostationary orbit always appears stationary, because it remains in the same point in the sky and observes the surface.
Astrobiology is the branch of science which studies the origin, evolution and diffusion of life in the Universe. This concept was first explained by the Greek philosopher Anaxagoras in the 5th century BC. Later, in the 19 th century, Lord Kelvin explained this term scientifically.
All of these scientists have tried to prove that life in the universe starts from microbes.
Cryogenics is the branch of the natural sciences that studies
Cryogenics proved to beIt is very useful for superfluidity which is a highly beneficial property of liquid at cryogenic temperature, because it faces the rules of surface tension and gravity.
Based on the principle of cryogenics, the GSLV-D5 was successfully launched in January 2014. In the GSLV-D5, a cryogenic engine was used.