The apparent magnitude of Jupiter varies to some extent because of its varying distance from the Earth, but this is not sufficient to explain all the observed changes. Since 1862, the mean opposition magnitude has ranged over 0.45 magnitudes so that, at the brightest opposition, Jupiter was reflecting 50 percent more light than at the [...]
Named after the Roman goddess of Love, Venus is the 2nd closest planet to the Sun and orbiting it every 224.7 Earth days. It is also the only planet in the Solar System to be named after a female figure. Venus is also the brightest natural object in the night sky other than the Moon. [...]
The queries and arguments about the origin of the universe is just like the old question about the chicken and the egg. It is an issue that is and can always be debatable. Recently, scientists ceased the argument but acknowledge that even in the beginning of the universe, the Law of Science already existed.
Some people [...]
For religious fanatics, the age of the universe is one of their main subjects, both in scientific and mythological aspects. According to Isaac Newton the universe could probably be a thousand years only. However Einstein, who developed the general theory of relativity, concluded that the universe was eternal and ageless. When observational evidence happened in [...]
Uranus, the seventh planet from the Sun is the 3rd largest and the 4th most massive planet in the Solar System. The planet’s name was derived from the Greek deity of the sky Uranus who is said to be the father of Kronos and grandfather of Zeus (Saturn and Jupiter respectively).
Although the planet is visible [...]
According to the astronomers first everything was an incredibly solid, heavy ball of a matter. This heavy ball exploded billion of years ago and as a result the Universe was formed. The moment of the explosion of this ball is known as “Big-Bangâ€. After this explosion the early universe was very small and too hot [...]
A binary star is a stellar system consisting of two stars orbiting around their center of mass. For each star, the other is its companion star. Recent research suggests that a large percentage of stars are part of systems with at least two stars. Binary star systems are very important in astrophysics, because observing their [...]
What is a Neutron Star.
A neutron star is a stellar remnant–a super-compressed object left over when stars with a mass between 1.4 and about 3 times the mass of our Sun exhaust their nuclear fuel and collapse inwards. The result is a condensed sphere of matter about 20 km across, with a gravitational field approximately [...]
Formation of Earth.
Earth is the third planet from the Sun and the fifth largest. The Planet Earth was formed 4.6 billion years ago from the same nebula cloud of gas and dust that the Sun and the eight other planets were formed.
Definition of Earth
Earth is the only planet whose English name does not derive [...]
A Star can be defined as a massive and luminous ball made of Plasma. Basically, a star is formed out of cloud of cool, dense molecular gas. To become a potential star, the clouds need to collapse and increase in density.
Formation of stars can be of two ways: it can either collide with another [...]