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प्रश्न
What’s the solution?
One of the asteroids has fallen out of its place in the asteroid belt and is hurtling towards the sun. Our earth is in its way and there is all likelihood of a collision. What can be done to prevent this collision?
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उत्तर
- The first act to save the earth can be attacking the asteroid with the help of a missile. A missile can break an asteroid into smaller pieces.
- The second way is to change the path of an advancing asteroid. For changing the path of the asteroid, a spaceship or missile can be used to push the asteroid aside. Space shuttles fitted with mirrors can be used. so that the reflected sunrays from such mirrors can be bombarded on the asteroid. This will create pressure on the asteroid and its advancing path can be changed.
- By use of laser rays. the surface of an asteroid can be subjected to evaporation. This will create a change in the mass of the asteroid. We can also send extra material on the asteroid from the earth. Such a change in the mass of an asteroid changes the orbit and the path of the asteroid.
- By placing a space shuttle in the vicinity of this asteroid, the gravitational force could be created. This can also change the speed and path of the asteroid. Astronomy and astrophysics are so advanced now that even if such a threat exists in the future, we can easily protect our earth inhabitants well in advance.
संबंधित प्रश्न
Comets are made of ______.
What are asteroids?
Use your brain power!
What will happen to our solar system if the sun were to suddenly disappear?
______ is the first satellite launched by India.
Match the following
| 1. | Rohini | GSLV-Mark III |
| 2. | GSAT-14 | GSLV Mark III M1 |
| 3. | GSAT-19 | SLV-3 |
| 4. | Chandrayaan-2 | PSLV-XL C25 |
| 5. | Mangalyaan | GSLV-D5 |
The first artificial satellite is ______.
Which among the following statements is correct?
- Meteors are attracted by the gravitational the force of earth.
- Meteors are traveling at low speeds.
- Most of the Meteors are burnt by the heat generated by friction in the atmosphere.
Comets revolve around the Sun in highly spiral orbits.
Assertion: The outer planets are called Terrestrial Planets.
Reason: Outer planets are made up of hydrogen, helium, and other gases in huge amounts and have very dense atmospheres.
Write short notes on Halley’s comet.
