Earth

What is Galaxy

What is Galaxy? The Short Answer: The Galaxy is a huge collection of gas, dust, and billion of stars and solar systems, all held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. (A supermassive black hole is the biggest kind of black hole. Its gravity is more than a million times stronger than our sun's, Its has very strong gravity that pulls in everything around it. ) We live on a planet called Earth that is part of our solar system. But where is our solar system? It's a small part of the Milky Way Galaxy. live view of Galaxy by NASA. Hubble Skymap Planets in our Galaxy ? Mercury : The swiftest planet. Venus : Earth's superheated twin sister. Earth : Our home world. Mars : The Red Planet. Jupiter : Kind of the planets. Saturn : Jewel ...

Earth

Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so mush more. Earth is special because it is an ocean planet. Water covers 10% of Earth's surface.

Earth has a dynamic atmosphere, which sustains Earth's surface conditions and protects it from most meteoroids and UV-light at entry. It has a composition of primarily nitrogen and oxygen. Water vapor is widely present in the atmosphere, forming clouds that cover most of the planet. The water vapor acts as a greenhouse gas and, together with other greenhouse gases in the atmosphere, particularly carbon dioxide (CO₂), creates the conditions for both liquid surface water and water vapor to persist via the capturing of energy from the Sun's light. This process maintains the current average surface temperature of 14.76 °C, at which water is liquid under atmospheric pressure. Differences in the amount of captured energy between geographic regions (as with the equatorial region receiving more sunlight than the polarregions)drive atmospheric and ocean currents, producing a global climate system with different climate regions, and a range of weather phenomena such as precipitation, allowing components such as nitrogen to cycle.

Beautiful song about our gorgeous earth, create by....

Lil Dicky

Earth (official Music)