This segment is dedicated to the wild and wonderful Bok globules!

Here are Top Five Facts about these strange, nebulous entities in our cosmos:

First discovered by Bart Bok in the 1940s, who hypothesized that these were indeed “nests” of dead star dust to essentially form new stars! In the classification scheme of object classes in cosmology, Bok globules are dark, small, dense cosmic clouds of dust, but star formation could still occur in these nests! The composition of these globules contain hydrogen, helium, carbon and about 1% silicate dust! While most are within a span of only 1 light-year across, these clouds could be as dense as up to 50 times our Sun! Known to be some of the coldest regions of space, but their nebulous structure and formation still elude astronomers presently!

Thackeray’s Globules in the IC 2944 cluster taken with the Hubble Space Telescope. Image credit: NASA and The Hubble Heritage TeamNASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: Bo Reipurth (University of Hawaii) (STScI/AURA)

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