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.

  • 1 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 ..

  • 1 Months ago
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Santanu Das

Researcher

Astro-QA #4: Can all the planets ever align?

We know that all the 8 planets are moving around Sun. Will there ever be a moment when all eight major planets are in a straight line on the same side of the Sun?

  • 3 Months ago
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Santanu Das

Researcher

Astro-QA #1 : Can we see Saturn's rings from its equator or from its poles?

If I lived on Saturn, would its rings be visible from the equator or the poles?

  • 3 Months ago
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Chaotic times: When stars loom into the Earth

Astrophysicists are using new methods to simulate the common-envelope phase of binary stars, discovering dynamic irregularities that may help to explain how supernovae evolve.

  • 2 Years ago
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