Why do inner planets of our solar system have negligible hydrogen in the atmosphere?

The Planet Earth
The atmosphere of Earth has negligible hydrogen gas.
( Image Credit: NASA)

The atmosphere of Earth has 78% Nitrogen and 21% oxygen but no Hydrogen gas. Mercury does not have atmosphere whereas Venus and Mars have an abundance of Carbon Dioxide. This indicates an absence of Hydrogen gas in the atmosphere of inner rocky planets of our solar system. Continue reading “Why do inner planets of our solar system have negligible hydrogen in the atmosphere?”

Reasons for excessive amount of Carbon Dioxide in the atmosphere of Venus

Thick atmosphere of Venus
Thick atmosphere of Venus. (Source: NASA)

The planet Venus is called the sister planet of Earth because it resembles the Earth in many ways but also different in many properties. The structure and size of the planet Venus are similar to the planet Earth. The difference lies in the temperature and composition of the atmosphere. The temperature of Venus is much larger than planet Earth and sufficient to melt lead. The atmosphere of Venus is so dense that the atmospheric pressure is 90 times the atmospheric pressure on Earth. The equivalent pressure on Earth exists in the oceans at the depth of 1 km. Continue reading “Reasons for excessive amount of Carbon Dioxide in the atmosphere of Venus”

Magnetic Home sustaining life

Magnetic Field protection from Solar wind
Magnetic field of Earth protecting from Solar wind

Everybody is usually familiar with word ‘Magnet’, magnet is a small piece of rock or metal that can attract many types of metals like iron, cobalt, and nickel. The range of application of magnet is also very wide from compass to electronic devices. The magnet creates some effects in the surrounding space that can affect other magnets and metal, this effect is called magnetic field. Magnet interacts with other material through this magnetic field. Continue reading “Magnetic Home sustaining life”

How does Venus protect its atmosphere from solar wind in the absence of Magnetosphere?

Solar wind interaction
Solar wind interaction with the magnetosphere. ( Credit: NASA)

The solar wind is composed of high energy charged particle which when interact with planetary atmosphere causes degradation to the atmosphere. The Magnetosphere of planet protects the atmosphere of the planet from these solar winds by deflecting charged particles. For example, the planet Mars has no planetary magnetic field to protect its atmosphere from the solar wind which results in continuous loss of atmosphere to space. The planet Venus is much closer to the Sun Continue reading “How does Venus protect its atmosphere from solar wind in the absence of Magnetosphere?”

Eligibility Criteria of planet for Hosting Life

life on Earth
Life on Earth is centered around water. (Credit: Astrointerest).

‘Life’ is one of the most mysterious words. The planet Earth is the only known place where life exists. Astronomers are too keen to know about the existence of life on other places than Earth. Lots of new techniques and experiments are done daily to observe the evidence of life outside the planet Earth. Let us look at some basic requirements for the existence of life on any planet or moon. Continue reading “Eligibility Criteria of planet for Hosting Life”

Effect of Solar Wind on the Atmosphere of Planets of Our Solar System

Eeffect of solar wind
Effect of solar wind on the atmosphere of planets. Source: NASA

The high-speed solar wind runs away from the sun into the deep space, and when it approaches the planet, hits the atmosphere of the planet and blows away some part of atmosphere depending on the speed and energy of particles of solar wind. The magnetic field of planets plays important roles at this time in the protection of the atmosphere. Continue reading “Effect of Solar Wind on the Atmosphere of Planets of Our Solar System”