Spacecraft are vehicles, vessels or machines designed for travelling in outer space. The main purposes that they are used for are communications, earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. Because of these many purposes there are many types of spacecraft that have invented or are inventing. As following way, the space crafts are classified in scientific sectors.
There were lots of collisions happened due to the asteroids coming from the outer space. Some incidents are very harmful for life on Earth. Now I try to investigate a new method to detect such asteroids coming from outer space and measure the velocity it moves.
Astronomy, the science of celestial objects is one of the ancient science in the world.
With recent findings, microbial diversity found to thrive at 6.7 km depth inside the Earth's crust, deep trenches in the ocean with pressures exceeding 110 Mpa, extreme pH conditions varying from 0 to 12.8, and temperature gradient from freezing -22 C to hydro-thermal vents of 122 C dramatically expanded boundaries of habitable environmental conditions leading to possibilities of finding life in various planets in the solar system and supports Panspaermia hypothesis, the migration of life throughout the space.
There are several notions related to the starting of life on the Earth in science. Some scientists argue that the civilization on the Earth has established by some kinds of Aliens who might came from another planet in the universe. They might came from a planet in our solar system or beyond the solar system. (Although present science hasn’t revealed the existence of life on a planet in our solar system, there might some life in the solar system before million time ago).
Stellarium is a free open source software project that allows people to use their home computer as a virtual planetarium. It shows a realistic sky in high quality 3D graphics , just like what you see with the naked eye, binoculars or a telescope.