Question

in 1974, astronomers sent a message toward globular cluster m13. if life exists there, and it returns our signal, we won’t receive it for at least another 50,000 years. why?

Answer 1

Since M13 is so far away, even light takes a very long time to get there.

M13 is situated between Vega and Arcturus, the two brightest stars during the summer, in the constellation Hercules. Find the four moderately brilliant stars that make up the Keystone of Hercules around one-third of the way from Vega to Arcturus. One of the almost 150 globular clusters that encircle our Milky Way galaxy is M13. Some of the universe's earliest stars may be found in globular clusters. They are older than almost all other stars in our galaxy because they probably originated before the Milky Way disk.

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