Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM. This reservoir of raw material stretches 10–20 times the size of the visible portion of the galaxy.
Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM.
This reservoir of raw material stretches 10–20 times the size of the visible portion of the galaxy.
Galaxies are enormous and hold hundreds of billions of stars.
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Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM. This reservoir of raw material stretches 10–20 times the size of the visible portion of the galaxy. Galaxies are enormous and hold hundreds of billions of stars.
Galaxies are enormous and hold hundreds of billions of stars.
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