PPSC past papers

PROXIMA CENTAURI THE UNIVERSE NEAR PLANET TO OUR SOLAR SYSTEM Since the dawn of space age, in the middle of 20th century, we have sent unnamed probes all over the solar system, which have given us some incredible image of the planet and moon that are part of our solar system. There are plans to send humans to Mars, the galilean moons of Jupiter should not be too long after that. But as existing as it will be to colonies our system, beyond and Mars there are only a handful of moon that are even remotely fit for such endeavor.  Power search for habitable worlds will inevitably leads us outside of our own system. This poses tremendous challenge, because as far away as the other planets and moons in this system are, this distance is utterly insignificant compared to vast distances to other stars. We will certainly need to innovate new methods of probe propulsion in order to get there in a reasonable amount of time.  PROXIMA CENTAURI EARTH LIKE PLANET   But we will achieve thi...

 THE MARS PLANET THE UNIVERSE HISTORY OF MARS PLANET The red planet of our mysterious celestial neighbour. Every day we learn more and more about Mars planet as the race to unlock its secret ramps up does it just look like cold dry dead planet, but the more we study it the more we learn that it's actually dynamic alive. But for every answer we discover a million more questions arise so what doing know.  SURFACE OF MARS PLANET Mass is one of the most interesting planet of the solar system. It is the fourth planet from the sun it is Rocky cold desert world. Mars has very thin atmosphere. On March we see volcanoes canyon and impact basins like the ones we see on earth . Many of the same physical Land features we see on earth also exist on Mars. It is the most widely searched planet for life. One day Mars is completed with in 24.6 while a whole trip around the sun is completed with in 669.6 days. So mass is pretty much similar to earth. It is only planet apart from earth that lies...

 VOYAGER 1 AIRCRAFT THE UNIVERSE  VOYAGER 1  In September 1977 in our NASA Voyager 1 spacecraft begin its long its long journey into the unknown when it was launched the Kennedy space centre 16 days later than Voyager 2, launch. These probes main object was to conduct close up studies of the outer planets including their large moons and mysterious rings system. Voyager 1 was launched on a faster more direct path that would send the spacecraft hurtling towards Jupiter and Saturn. Voyager 2 would take a slightly different path that would also take it past the two gas giants but then on to Uranus and Neptune taking advantage of rear planetary arrangements that only occurs once every 175 years.  With in the couples of year after its journey Voyager 1 sent back its first image won a which reveals a crescent shaped Earth and moon hanging in darkness.  SPACECRAFT   Because of the direct path that Voyager 1 was set on it only took the spacecraft approximately one a...

 THE NEPTUNE PLANET THE UNIVERSE NEPTUNE PLANET Look up into a clear night sky with your naked eye and what planets would you see?  Technically you would be able to see all of them at one time or another all of them A apart from Neptune. It is the smallest of gas giant and also the furthest away. And it is a perplexing place. You would think our planet so far from the sun would not have a dynamic atmosphere that exhibit great storms and superfast Winds.  PHOTO OF NEPTUNE PLANET So why is this planet as interesting as it is?  Neptune is the only planet found through mathematical prediction. You see when Uranus was discovered and astronomers  verb plotting its orbit, they noticed that Uranus was not following their models. From perturbed orbit of Uranus, the scientist in 1846 concluded that there must be another undiscovered planet and he predicted where it should be, and remarkably Jahan gall was able to find it only a degree away from the predicted point.  ...

 IS PLUTO IS THE PLANET? THE UNIVERSE  HISTORY OF PLANETS DISCOVERY  Throughout the ages, the number of planets in our solar system has gone up and down. No, this is not because planets have suddenly appeared and disappeared, but rather due to how they world discovered. Science antiquity, they were 5 planets beyond Earth, which are the ones visible to naked eye, mercury Venus Mars Jupiter and Saturn. The ancient Greek at did the sun and moon to their list of planets, but that idea never really caught on. In the late 1700s, Uranus was discovered, which was revolutionary at the time as no one considered there could be more planet bye on the visible five. After the discovery more and more planets candidates being found, like Ceres, vesta, palas and Juno, which are all found in what we know as the asteroid belt for the large asteroids between the orbit of Mars and Jupiter.  In science textbooks in the early 1800s, devar all listed as planets. In the middle of 1800s, netz...

 THE JUPITER PLANET THE UNIVERSE  ALL ABOUT THE THE PLANET JUPITER Jupiter is a biggest planet in fact it's quite larger than every other planet in solar system. Jupiter comes in with a radius of 43000 441 miles for 69000  kilometre which which is almost 10,000 miles or 16000 kilometres larger than the next largest planet Saturn in comparison our lovely little planet it would take 11.2 Earth side-by-side to match the diameter of Jupiter it's believed that jupiter's massive size is responsible for directing the path of small objects with the solar system either standing comets or asteroid into or away from the inner solar system.                                     THE PLANET JUPITER  Jupiter five times for other if you look at a map of the solar system you will find the mercury Venus Earth and Mars are relatively close to one another and or with in 115 million miles 249 million ...

SOLAR SYSTEM THE UNIVERSE   Have you look up and see the secret of the sky and ? Higher than the birds, past the clouds, and further than the moon a whole host of fascinating objects in outer space.                                SOLAR SYSTEM AND PLANETS Let's imagine for a moment and leave the earth, sit on the space craft and look out of the space. We see the solar system and power of the sun where all eight planets are orbiting the sun , and solar means something to do with the sun.                          THE MASSIVE SUN   The sun is a star , just like many of the star that you can see in the sky just many times closer to us. Still, the sun is very very for away from Earth; almost 93 millions miles away: that's way it looks so small, even though it's the biggest object in the solar system. Infact the sun makes up more than 9...