APOD: 2020 August 6 - Messier 20 and 21
Messier 20 and 21
Image Credit & Copyright: Emanuele Petrilli
Explanation: The beautiful Trifid Nebula, also known as Messier 20, is easy to find with a small telescope in the nebula rich constellation Sagittarius. About 5,000 light-years away, the colorful study in cosmic contrasts shares this well-composed, nearly 1 degree wide field with open star cluster Messier 21 (right). Trisected by dust lanes the Trifid itself is about 40 light-years across and a mere 300,000 years old. That makes it one of the youngest star forming regions in our sky, with newborn and embryonic stars embedded in its natal dust and gas clouds. Estimates of the distance to open star cluster M21 are similar to M20's, but though they share this gorgeous telescopic skyscape there is no apparent connection between the two. In fact, M21's stars are much older, about 8 million years old.
Family size and structure are rapidly changing in Israeli society, Taub
study finds Although the marriage rate here is similar to that in other
high-income countries, Israel is more similar to neighboring developing
countries in terms of birthrate than to high-income ones. By JUDY
SIEGEL-ITZKOVICH APRIL 18, 2024 05:57 Updated: APRIL 18, 2024 08:42
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https://www.jpost.com/israel-news/article-797575
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