At the center of each galaxy, there is a supermassive black hole that is millions to billions of times heavier than our sun. The massive black hole captures nearby stars and drags them into a swirling accretion disk. John Archibald Wheeler invented the name ‘black hole’ because the light inside it can never be seen. Before Wheeler, these objects were often referred to as ‘frozen stars. Read More

The word Galaxy derives from the Greek term galaxies, meaning “milky circle” for its appearance in the sky. A Galaxy, or nebula, is a large gravitational bound system of stars, interstellar gas, dust, and plasma within the universe. The average galaxy contains more than 100 billion solar masses and ranges in diameter from 1,500 to 300,000 light-years, 90% of which is composed of a largely unknown substance called dark matter. Read More

The Hubble Space Telescope (HST) is the first optical telescope orbiting the Earth. The Hubble Space Telescope was named after American astronomer Edwin P. Hubble (1889-1953). Read More

It is a huge glowing globe of gas. It shines by its light, rather than reflecting light (like planets) or glowing from heat friction (like meteors). Seen from earth, stars look like points of light. A normal star’s size and temperature can be judged from its color and brightness Read More

Cassini-Huygens is the international collaboration to know about the planet Saturn. Cassini–Huygens is a joint effort by NASA’s Jet Propulsion Laboratory (NASA), European Space Agency (ESA), and the Agenzia Spaziale Italiana (ASI) robotic spacecraft mission currently studying the planet Saturn and its moons. Cassini-Huygens is the first spacecraft to orbit Saturn. Read More

The International Astronomical Union (IAU), defines a “dwarf planet” as a celestial body within the Solar System that satisfies these four conditions Read More

Astronomy is the scientific study of heavenly bodies. It is a study of planets, stars, sun and other objects in the space. ‘Astronomy’ comes from a Greek word meaning “arrangement of stars”. Read More

The universe is a vast ocean of space. The word “Universe” comes from the Latin word “Universum” meaning “the whole” or “everything together”. It includes all space i.e. stars, planets, satellites, galaxies, nebulas, and comets. Read More

Q. What are UFOs?
A. Unidentified flying objects or the reported sighting of the object or light in the sky or on land, whose appearance, trajectory do not have a logical explanation.

Q. What do UFOs look like?
A. Small spots of light, saucers, boomerangs, diamonds, cigars, triangles.

Q. What do aliens look like?
A. According to witnesses , the could be Nordic (like humans), Greys (like E.T.), robotic or android-like.

Q. How many UFOs have been sited?
A. UFO sighting – 18,200 worldwide till now.
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The Sun, the center of the Solar System is our star which is a huge ball of very hot gas. Its diameter is over 100 times more than the Earth’s diameter. Its surface is 60 times as hot as boiling water. The temperature at its center is around 15 million degrees C, and the heat flows outwards in all directions to the surface. Read More