Space Science
Where spiral arms and star formation meet
Mar 27, 2026, 9:00 AM
出典: ESA Space News
<img src="https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2026/03/where_spiral_arms_and_star_formation_meet/27171324-1-eng-GB/Where_spiral_arms_and_star_formation_meet_card_full.jpg" alt="Hubble image of barred spiral galaxy IC 486 ">
Image:
Hubble image of barred spiral galaxy IC 486
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Image:
Hubble image of barred spiral galaxy IC 486Related Knowledge
mentions
Spiral Galaxies
Spiral galaxies are a type of galaxy characterized by their spiral structure, which consists of a flat, rotating disk containing stars, gas, and dust, along with a central concentration of stars known as the bulge. They are one of the most common types of galaxies in the universe and are often studied to understand galaxy formation and evolution.
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Star Formation
Star formation is the process by which dense regions within molecular clouds collapse under their own gravity to form stars. This process involves the accumulation of gas and dust, leading to the birth of new stars and often resulting in the formation of star clusters.