On 20th July 1969, two American scientists landed on moon of earth. The first ever artificial satellites was launched by Russia. Roberta Bondar was the first Canadian woman in space. Marc…

6 months is the maximum length of a day of the poles. Cause of the phases of the Moon is rotation of earth. Christian Huygens was the first to speculate that…

Light travels from Sun to Earth in 510 seconds. The theory that refers to an explosion about 10 to 15 billion years ago which most astronomers believe to be the origin…

The planet which has shortest year is Mercury. The planet which has longest year is Neptune. Russia launched its space station into space in 1986, which was Mir. Hubble is a…

The correct sequence of the following planets in terms of gravity, in the descending order is Earth, Uranus, Neptune and Saturn. Triton is satellites of Neptune. The maximum day and night…

Venus has lesser diameter than the earth. Jupiter has greater diameter than the earth. Mars has lesser diameter then the earth. Mercury has lesser diameter then the earth. Mars takes very…

The heaviest mass revolving round the Sun is Jupiter. First Afghan who went in space Abdul Ahad Mohmand. CHALLENGER space shuttle was launched by the United States in May 2005. The…

Venus contains largest quantity of carbon dioxide with 95%. 109 times is the sun bigger in size than the earth. The temperature at the surface of the sun and its center…

There are 56 Satellites (Moon) of Saturn Planet. Jupiter is larger than the earth by about 317 times. NASA has recently sent Opportunity space shuttle on the surface of Mars. Neptune…

Venus is known as the Evening Star. Earth is also called as Watery Planet. Solar system was discovered by Copernicus. The unit of measuring distance between the stars is known as…