*The planet that gives off more energy than it receives from the sun
Ans:Saturn The planet having most extensive rings in the solar system
*Saturn The planet with least density
Ans:Saturn (It’s density is less than water)
*The only planet that could float in water
Ans:Saturn
*Titan was discovered by
Ans:Christian Huygens (1655)
*The biggest satellite of Saturn
Ans:Titan
*The only satellite in the solar system with atmosphere of its own - Titan
*The seco ....etc

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hello I am Anjana a final yearbtech student (electronics and communication). I am inter ested to seminar on the topic radio astronomy. so please help me by providing me the essential report ....etc

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Don't confuse
*Morning star -Venus
*Evening star -Venus
*Brightest planet -Venus
*Pet of the Sun -Venus
*Twin planet of the Earth -Venus
*Red planet -Mars
*Blue planet -Earth
*Green planet -Uranus
*Rolling planet -Uranus
*Lying planet -Uranus
*Father sky -Uranus
*Windy planet-Nepture 
*Golden Giant-Saturn
*Speedy messenger-Mercury

Mercury 
*Period of Revoluti ....etc

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*The first woman in space 
Ans : Valentina Tereshkova (Russia, 1963) 
*The first American space traveller 
Ans : Alan Shepard
*The first American woman in space 
Ans : Sally K Ride
*The oldest man in space
Ans : John Glenn (77 years) Ans : Rakes ....etc

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RADIO ASTRONOMY
Introduction:
¢ Study of celestial objects in radio frequency.
¢ Require large radio telescope to observe longer wavelengths.
¢ Study of elements in universe using radio telescope.

Electromagnetic Spectrum:
The electromagnetic spectrum includes radio frequency (RF), infrared (IR), visible light, ultraviolet (UV), X-rays, and gamma rays.
Radiation with shorter wave length-blue light.
Radiation with longer wave length-red light.
Radio waves (EM waves) have 1mm-100km wave len ....etc

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PSLV
*The launch vehicle of ISRO, which created history by launching a record of 104 satellites in a single mission
Ans : PSLV - C37
*PSLV - C37 was launched on - 15th February 2017 (from Satish Dhawan Space Centre)
*By this launch India overcame the previous record of Russia with 37 launch in a single mission.
*The previous record of ISRO was 20 satellites in a single launch on 22nd June 2016 (PSLV-C34)
*Number of Indian satellites that was launched by PSLV - C37 - 3 ....etc

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Need to evaluate each post in phpbb3.0.10.

Any help will be helpful...

Thanks ....etc

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METEORS
*A bright streak of light in the sky
Ans : Meteors
*Meteors are also known as Shooting star/ Falling star
*Meteors may bum up or fall on earth in the form of dust or fragments called Meteroites


COMETS
*The mixture of ices (both water & frozen gases) and dust revolve around the sun in elongated orbits 
Ans : Comet
*The first astronomer who discovered the proper motion of stars and periodicity of comets
Ans ....etc

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*The planet known as “blue planet” -Earth (because Earth looks blue from space)
*The only planet in the solar system that is known to have life.
*The only natural satellite of Earth - Moon
*The fifth largest natural satellite in the solar system
Ans : Moon
*The age of Earth is approximately
Ans : 460 crore years
*The shape of the Earth
Ans : Geoid (Oblate Spheroid)
*The escape velocity of Earth
Ans : 11.2 km/sec.
*The earth day is observed on
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*The Carl Sagan Memorial station situated in the planet
Ans : Mars
*The space probe sent to Mars by NASA on November 2013 to study the upper atmosphere of Mars
Ans : MAVEN (Mars atmosphere and volatile evolution)
*The atmospheric research orbiter built in collaboration between European Space Agency and Russia, launched on 19 October 2016 to gain a better understanding of methane and other trace gases in Martian atmosphere Trace Gas Orbiter
*Atomic oxygen is found in the atmosphere of Mars


[ ....etc

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