Santanu Das

Researcher

Astro QA 12: What are meteoroids? What is a meteor shower?

Astronomy is an interesting subject. But one of really annoying aspects about astronomy is that whatever we study in astronomy, are really big and most of the time they are far far away. We can’t really collect samples or hold them in our hand. But sometimes things can be a little bit different. There is a particular kind of astronomical object that we can even buy from online stores like ebay or amazon. -- Yes you guessed it correctly. These are the m..

  • 25 Days ago
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Santanu Das

Researcher

Astro-QA 10 : What is a comet? Where do they come form? (Interesting Facts About Astronomy)

Comets are small celestial bodies that orbit the Sun. Their orbits are highly elliptical which brings them very close to the sun from very outer edge of the solar system. Like asteroids, comets are thought to be remnants of Solar System formation. But while asteroids are generally comprised of rock and metal, comets are primarily made of dust and ice. They are composed of frozen gases such as carbon dioxide, methane, and ammonia, as well as water ice, dust..

  • 25 Days ago
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Santanu Das

Researcher

Astro QA #9: Why does Titan have an atmosphere but Ganymede and Callisto do not?

The Saturnian system gets 1/4th as much sunlight that of Jupiter’s system, which could play a factor in loss mechanisms. Being further from the Sun also means that the composition can be a bit different. More volatiles had a chance to condense at Saturn than at Jupiter. That could have allowed Titan to have more of the needed materials.

  • 5 Months ago
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Santanu Das

Researcher

Astro-QA #8 : Why do the outer, gas-giant planets rotate faster than the inner, terrestrial planets?

To understand this, we need to think about how the planets formed. When the sun was formed and fusion started the lighter gas were swift far out in the solar system and heavier rockier material and metalics with high melting point stay closer to the Sun. Molten metal and dust particles stuck together to form rocks. Then gravity brings then together to form planets. So, in the hot inner region of the solar system the rocky planets with metal cores are ..

  • 5 Months ago
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Santanu Das

Researcher

Astro-QA #6 : When will the last total solar eclipse occur?

Our moon slowly going away from Earth. So once a time will come when the angular diameter of the moon will no longer be enough to cover the Sun completely and the total solar eclipse will never happen again. When will the last total solar eclipse occur?

  • 5 Months ago
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