Spiral galaxies

There are ~2 trillion galaxies in the observable universe, and the spiral galaxies are thought to account for ~several hundred billion of them. Our Milky Way galaxy is a spiral galaxy and contains 100 billion stars or more, 10 miilion to 1 billion black holes, and several billion potentially habitable planets, all rough estimates given the enormous scale of our galaxy.
Spiral galaxy Image 1: M74 galaxy
Credits: X-ray: Chandra: NASA/CXC/SAO, XMM: ESA/XMM-Newton;
IR: JWST: NASA/ESA/CSA/STScI, Spitzer: NASA/JPL/Caltech; Optical: Hubble: NASA/ESA/STScI, ESO; Image Processing: L. Frattare, J. Major, N. Wolk, and K. Arcand, with additional support on NGC 346 by A. Kudrya
Spiral galaxy Image 2: NGC 1433 galaxy
Credits: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing - A. Pagan (STScI)
Spiral galaxy Image 3: NGC 7496 galaxy
Credits: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing - A. Pagan (STScI)
Spiral galaxy Image 4: NGC 1365 galaxy
Credits: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing - A. Pagan (STScI)
More info: nasa.gov/universe/nasas-webb-reveals-intricate-networks-of-gas-and-dust-in-nearby-galaxies/