Deep Field

Notes on galaxies and nebulae that JWST or Hubble have imaged.

SMACS 0723 · gravitational lensing

Webb's First Deep Field

JWST's first full-color deep field. Thousands of galaxies in a small patch of sky. The foreground cluster lenses more distant ones behind it.

Related: Physics Lab →

M16 in Serpens · star formation

Pillars of Creation

Columns of gas and dust in the Eagle Nebula where new stars form. Infrared from JWST cuts through the dust and shows the embedded protostars.

Compact galaxy group · galaxy evolution

Stephan's Quintet

Five galaxies, four of them interacting and one sitting in the foreground, which makes mergers and tidal tails easy to see.

NGC 3372 · nebula

Carina Nebula

A large star-forming region. JWST picked up nurseries and outflow cavities that were hard to see before.