Taken against the human lifespan, the age of our home galaxy — the Milky Way — is mind-boggling, at about 13.6 billion years. Find out more at 🚀 Don't miss out — subscribe to IE+ today for interviews, analysis, and more:
— the amount of chemical elements heavier than helium contained in its atmosphere — places them as the oldest stars in the Milky Way. To achieve this research feat, the team of scientists used data fromand the LAMOST spectral survey and trained an AI neural network to analyze the data. Gaia has been gathering very accurate position and motion information, as well as distances, for over a billion stars since 2014.To find the oldest stars, astronomers utilized machine learning.
Interesting Engineering: What is the significance of the galactic archaeology work to retrace the past of the galaxy? What can we find out? We can’t do that directly, but in two indirect ways: we can look very far away, as JWST does now. As light takes time to travel, a look into the distance is a look into the past. Unfortunately, it is a look into the past “somewhere else” . The other approach is to look in our own Milky Way that we see star-by-star.
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