Scientists get information about galaxies with the help of

  • energy
  • light
  • sound
  • radiations

The main mirror of "Hubble telescope" is about

  • 2 meters in diameter
  • 2 meters in radius
  • 2.4 meters in diameter
  • 2.4 meters in radius

Sometimes a blazing burst of gas comes from the surface of Sun and shoots up to hundreds and thousands kilometers into space, then loop back down. These blasts are known as

  • sun blasters
  • sunbursts
  • hydro explosions
  • prominence

Most of the constellations in southern hemisphere were named by

  • astronomers
  • scientists
  • physicians
  • travelers

The brightest star in night is

  • Deneb
  • Sirius
  • Aldebaran
  • Rigel

Nuclear fusion takes place in the

  • mantle
  • outer core
  • inner core
  • crust

If we try to cross Milky way galaxy, it will take us

  • 100 light years
  • 100,000 years
  • 100 years
  • 100,000 light years

The spectrum tells the astronomers that how

  • big a star is
  • hot a star is
  • bright a star is
  • colorful a star is

There is only one type of star in the elliptical galaxy and that is

  • young stars
  • middle aged stars
  • old aged stars
  • supergiant red stars

In 20th centaury, it was thought that the milky way was the only galaxy in

  • universe
  • sky
  • world
  • globe

'SOHO' will take pictures of the sun after every

  • 2 seconds
  • 1 second
  • 0.75 seconds
  • 0.5 seconds

Imaginary pictures were drawn about

  • constellations
  • horoscopes
  • ptolemy
  • prominence

Ulysses was sending back information about sun till

  • 2005
  • 2009
  • 2010
  • 2011

If you live in China, you won't be able to see the constellation of

  • America
  • United kingdom
  • Southern Hemisphere
  • Northern Hemisphere

Like other living things, the sun will complete its lifetime and

  • become a cold ball
  • die
  • become a comet
  • turn into old star

The constellations that remain there for the whole year, are known as

  • circumpolar constellations
  • seasonal constellations
  • northern constellations
  • southern constellations

American space probe was launched in

  • 1880
  • 1990
  • 2000
  • 2010

The dishes of a separate aerial telescope are arranged in the shape of a letter i.e.

  • A
  • X
  • Y
  • Z

The sun, earth and all other stars in the galaxy race around its

  • center
  • borders
  • shape
  • orbits

First, stars were formed in clumps like a large cluster of

  • planets
  • stars
  • small galaxies
  • small stars

Looking at sun for a look time, we can suffer from

  • blindness
  • eye weakness
  • sight disorder
  • retina paralyzation

Radio waves have a higher wavelength than

  • sound
  • light waves
  • energy
  • current

Just like sun, a process that produces a lot of energy takes place on other stars. This process is known as

  • nuclear fusion
  • nuclear fission
  • atomic explosions
  • hydrogen explosions

The color of a star gives us idea about its

  • inner core
  • outer core temperature
  • mantle temperature
  • surface temperature

Sirius 'B' is a

  • yellow star
  • white dwarf
  • blue giant
  • red supergiant

The closest star to the earth is

  • Sirius
  • Sun
  • Achemar
  • Aldebaran

The largest radio telescope was built into a natural hollow in the

  • cave
  • hive
  • jungle
  • desert

At the time of Egyptian astronomer Ptolemy, discovered constellations were

  • 36
  • 40
  • 44
  • 48

Blue and white stars are

  • cold
  • normal
  • hot
  • none of above

A violent spinning ball of hot and burning gases is known as

  • planet
  • star
  • galaxy
  • cluster
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