நட்சத்திரங்கள் பிறப்பது எப்படி? What are stars? How do they form? | SpaceTime Tamil

[@vijayakumarraman5026]

Super thakaval

[@satheesalvin5294]

உங்களிடமிருந்து நிறைய இதுபோல் எதிர்பார்க்கின்றேன் நன்றி🙏🏼

[@mothilal6479]

தங்களுடைய‌ பணி இன்னும் சிறப்பு அடைய வாழ்த்துக்கள். நம்பிக்கைகளில் ஊறிக்கிடக்கும் மக்களை அறிவு பாதையில் வழி நடத்தும்.👍

[@SenthilSubramani-f4e]

Super very intresting

[@paalmuru9598]

🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉 very good

[@nalandavid]

Don't stop , I subscribeed , put videos

[@aibrahimshah]

Nice information. All the best.

[@arunkumar-sc9mw]

All the best anna

[@magaayya2726]

🎉❤

[@ranganarasimhan]

Nice info. Thx. We know earth and other planets came from Sun. When sun keeps burning with its hydrogen, why earth, that separated from sun, chose to cool and form other elements? Why it did not become a small star?

[@SpaceTimeTamil]

Earth formed from a disk of gas and dust surrounding the early Sun. Over time, particles collided and stuck together, forming larger bodies resulting in the planet we see today. This process did not involve enough mass or pressure to trigger nuclear fusion (key characteristic of stars). The lower limit for a star is 0.075 times the mass of the Sun. Our Earth is 1/333,000 times the Sun's mass, which is very tiny.

[@ranganarasimhan]

@@SpaceTimeTamil Oh.. I always was thinking that earth got separated from sun. I didn’t realize it was formed as a separate space body on its own. Thanks for clarifying. If it was a separate body not involving any nuclear fusion like sun, then how did heavier elements form?

[@SpaceTimeTamil]

@@ranganarasimhan All the heavier elements on Earth, were primarily synthesized in the interiors of stars(Massive stars that lived before our Sun), distributed into the interstellar medium by supernova explosions. Such heavier elements from earlier generations of stars mixed into the material that formed our sun and the disk surrounding it, from which our planets formed. We will talk about how heavier elements are created inside stars in the upcoming video. Stay tuned for more info!

[@ranganarasimhan]

@@SpaceTimeTamil good info! thx. will look forward for more interesting stuff.

[@rajanpsrk]

🇩🇪🌎👍

[@ThanikaSalamT-fy1ms]

Weather stars are gaseous or solid plasma?------

[@SpaceTimeTamil]

Stars are primarily made of plasma, not solid or gaseous matter in the way we typically think of those terms. Plasma is a state of matter where the gas is ionized, meaning the atoms are broken down into charged particles-positively charged ions and free electrons. In a star, the temperatures are so high (millions of degrees) that atoms cannot stay intact, and the matter exists as this ionized plasma. So, stars are not solid or gaseous in the conventional sense, but rather composed of a dense, hot, and ionized gas (plasma).

[@sekarjeeva5788]

How atoms came ?

[@SpaceTimeTamil]

13.8 billion years ago, with Big Bang, vast expansion of space began. Universe was too hot and dense for atoms to exist at this stage. Matter consisted of quarks, electrons and neutrinos. As the universe expanded and cooled, quarks combined to form protons and neutrons (the building blocks of atomic nuclei). This happened within the first few minutes after the Big Bang in a process called nucleosynthesis. During this time, the first light elements(atoms), like hydrogen, helium, and small amounts of lithium, were created. We will dedicate a video for Big Bang and what happened next. Stay tuned!