A new image of the Flame Nebula shows the interstellar cloud as we've never seen it before.
What makes an emission nebula shine is the ionization of gases in the nebula by bright radiation from a nearby hot star. Since young stars are often very hot, stellar nurseries tend to shine brightly. The Flame Nebula is home to a cluster of hundreds of newly formed stars, concentrated in its center.But stars are born in clouds of dense dust and gas, which tends to obscure the stars in optical wavelengths.
In their observations of the Orion complex, Stanke and his colleagues were able to trace molecular outflows, vast winds driven out into interstellar space by star formation processes, and map molecular gas in different nebula regions.The researchers also found a nebula no one had ever spotted before, almost perfectly circular, suggestive of a spherical cloud containing no stars.
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