Universe

The Universe is the space/region/place that has no limit. The infinitely large space even the imagination cannot reach its boundary. When I was a child, I have one question that, “   what is there outside the universe?” It is because we have seen the limited two dimension figure of space in our books. But today I can’t imagine its dimension.

            Universe itself and its entities are the mysterious for scientist also. There are lots more things to know about it and lots more things to discover. There is dark as well as bright matter in the Universe. Bright matters consist of the celestial bodies such as stars, planets, satellites, asteroids, meteors etc. The unseen part of the universe is the dark matter. One question arises that why the unseen objects are considered as the matter.  As scientist had reached the nano region, the unseen space might contain the microscopic particles, and other types of waves and energies.

Some facts of Aliens

One

Scientists do not know whether there are any aliens but they have been searching for life on other planets for thousands of years. From the beginning ideas about aliens were linked to religious myths, and people regarded gods, angels, spirits, and demons as real. Democritus, a Greek philosopher, argued that all forms of matter consists of atoms and these tiny particle could be linked together to form plants and animals not only on Earth but also on other planets. The German mathematician and astronomer Johannes Kepler described in his book Somnium (The Dream, written around 1611) a type of reptilian creatures living on the Moon. Sunvolvans lived on the side facing the sun, and Privolvans lived on the dark side.

Two
Today, scientists are searching for life on other planets by trying to catch radio signals. In 1960, Francis Drake, steered a giant 26-metre dish towards a star Epsilon Eridani, and the antenna picked up an artificial signal. The signal turned out to be produced by secret military radar but this was the beginning of the search for radio signals sent by aliens.
The word SETI stands for Search for Extraterrestrial Intelligence, and it is an international research programme that seeks evidence of life in the universe.

NASA Discovers a New Planet in Our Solar System

The planet, larger than Pluto, was discovered using the Samuel Oscine Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.
While this object has many similarities to others in the Kuiper belt, its sheer size in relation to the nine known planets means that it can only be classified as a planet, according to Dr. Brown. Currently about 97 times further from the sun than the Earth, the planet is the farthest-known object in the solar system, and the third brightest of the Kuiper belt objects.

Astronomy

Since the beginnings of humankind people have gazed where they can. Before the dawn of history someone noticed that certain celestial bodies moved in orderly and predictable paths, and astronomy 'an ancient science' was born. Yet some of science's newest discoveries have been made in this same field, which includes the study of all matter outside Earth's atmosphere. From simple observations of the motions of the sun and the stars as they pass across the sky, to advanced theories of the exotic states of matter in collapsed stars, astronomy has spanned the ages.

Space Quick Facts

1. The Sun looks 1600 times fainter from Pluto than it does from the Earth.
2. There is a supemassive black hole right in the middle of the Milky Way galaxy that is 4 million times the mass of the Sun.
3. There are over 20 million observable meteors per day.
4. Only one or two meteorites per day reach the surface of Earth.
5. The typical size of a meteor is about one cubic centimeter, which is equivalent to the size of a sugar cube.
6. Each day, Earth accumulates 10 to 100 tons of material.
7. A piece of a neutron star the size of a pin point would way 1 million tons.
8. Light reflecting off the moon takes 1.2822 seconds to reach Earth.
9. There has only been one satellite destroyed by a meteor, it was the European Space Agency’s Olympus in 1993.
10. The International Space Station orbits at 248 miles above the Earth.
11. The Earth orbits the Sun at 66,700mph.
Shree krishna kc
BSc. 2nd yr