Ashes to Ashes, Dust to Dust: The Fate of Stars Like the Sun
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- เผยแพร่เมื่อ 6 ส.ค. 2018
- Ashes to Ashes, Dust to Dust: The Fate of Stars Like the Sun
Greg Sloan of the Space Telescope Science Institute
Our Sun, though seemingly eternal, is about halfway through its roughly 10-billion-year lifespan. What will happen when the Sun dies? Not only will the answer be important to whoever inhabits Earth in a few billion years, it is important to astronomers today. Quiet stars like the Sun are many times more numerous than large stars and play a major role in how galaxies develop. Importantly, how these stars die determines when life can first form in the galaxy.
Host: Dr. Frank Summers
Recorded live on Tuesday, August 7 at the Space Telescope Science Institute in Baltimore, Maryland, U.S.A.
More information: hubble.stsci.edu/about_us/publ... - วิทยาศาสตร์และเทคโนโลยี
Thank you, Grant Justice
When ever I tire of social / political issues I always come back to the sciences and its discoveries.
Great speaker! Seems like it would be a difficult subject to keep an audience engaged. You did stellar work
Very true, he was a very lively speaker which surprised me
Great stuff ! Watch again.
Thanks HST . Always worth watching !
Thank You Greg... The more you show me , the more I truly believe there is a Supreme being called ( God ) ... Thank You Sir Gregory ....
Please ask Greg if I might have his ppt file used here.
I didn't clearly hear the explanation. What is that blue cube everyone keeps passing around ?
I enjoyed this lecture a lot.
It is the microphone we use here so that the online audience can be part of the Q&A Process!
It's a free gift. ;-)
@@kyle9335 Woah, a new comment!
Great lecture very informative. At 22:0 there seems one typoerror. For Ne the atomic number is 10 , not 20.
Nuclear number is 20 ,, that is the icosihedron
Greg, that's a great lecture you shared! I learned a lot! Thank you so much, guys!
The last slide with the nitrogenous aromatics... need a connection with stellar N generation while most of the talk was on O and C.
when will the webb space telescope be launched
2020
20:12🎉wow☄️
please watch hubble for galaxy ngc3211 and take a photo
can it be possible that mars dust storms is effected by our solar system? As mars travel around its orbit around the sun it passes throught space that have left over dust, and therefor teh dust gathers around mars and makes the storm. The dust in the orbit can itself have come from mars in the past when it got hit to form those hugh mpact craters.
That's an imaginative idea, but the numbers don't work out. The amount of dust in the solar system is far too small for Mars to accumulate enough for a planet wide dust storm. The main reason that dust storms spread across the planet is the low density atmosphere (1/100th that of Earth). Local storms can grow to become global disturbances. Mars' surface has plenty of dust to kick up, and it does so regularly - about one global dust storm a decade.