Böcker av Rakesh Kumar Mishra

The idea of ancient civilization having contact with extraterrestrial Life is a popular in Science Fiction and conspiracy theories. however, here is no scientific evidence that any ancient civilization connect with contact of extraterrestrial life.there are some claim that Mayan had contact with alien visitor's who left behind evidence of their existence . however, these claim are not supported by any scientific evidence and are considered to be pseudoscientific.

It is important that to stress with space weather deeply concerned earth¿s electromagnetic field always have had continue to have negative effect on health and immune systems of humans and animal. Extreme space weather events follow through Sun , through Solar Corona, inner Heliosphere,Magnetospheric boundary, into the ionosphere and atmosphere, into Lithosphere,and finally, impact on man made structures and activities,such as space craft,G.P.S. signals radio communications and electric power outage.Thus space weather event,have substaintial impact on our technology dependent Society .such solar space weather event ocassionally observed through space weather station in space and ground based observation. Key Wards:- Extreme Space weather Events,Coronal Mass Ejections,Geomagnetic Stroms,Carrington Events ,Human and Technological impact

Solar energy drives the space weather and affect earth enviriounments. the concept of space weather system was launched before decades to describe the short term variation in the different form of Solar activity. Space weather system affects the earth's atmosphere in many way's and through various phenomena,among them, geomagnetic stroms and variablity of glactic Cosmic rays flux belong to the most important one as for the lower atmosphere. Space weather refers to dynamic, Highly variable conditions in the geospace enviriounment including those on the Sun, in Interplanetary medium, and in the magnetosphere- Ionosphere-Thermosphere system.Adverse the performance and reliablity of both Spacecraft and ground based station system. this, in turn,can spell major losses due to communication and Navigation, power system, and reconnaissance satellite operation problems. thus space weather affect people and Society in many ways such as dissrupt in GPS and Radiowave propagation,radio occultation's.

Today world facing many problem like Terrorisim, Poverty, illiteracy and Climate Change. Today military expenses may increases. World Powerful countries make their more budget for military modernization and make Nuclear weapons. In cold War period 80 % of nuclear weapons gone down and disposed. Their Armed race between nuclear power countries all happened for natural resources such as Oil , Land, River, Sea resources. Their fore their possibility of another nuclear radiation and health hazards. United Nation take step for Nuclear proliferation treaty and the dispute of Nuclear Armed can stop through peace , and dialogue and proper discourse between Nuclear Power Nation. During Nuclear radiation refers to particles and photon emitted during chain reaction during the fission of U-235 the nuclear radiation that released contains neutrons and gamma ray photons. There are several types of particles of wave that may shoot out of a radioactive material in nucleus, Alpha particles, Beta Particles, gamma rays, and Neutrons are most common form of dangerous radiation. In the radiation in atmosphere they could cloud of intense radio activity immediate radiation after explosion.