Space is cool
Space is cool. Pass it on.
About 2,000 light years from Earth is this, the Southern Ring nebula. The obvious, bright star at the center is locked in a tight orbit with a dim, dying star. It is the dying star that emits the gas and dust that make this nebula so striking.
In the deepest, sharpest infrared image of the distant universe ever taken, is galaxy cluster SMACS 0723 as it looked 4.6 billion years ago. “Webb’s image is approximately the size of a grain of sand held at arm’s length.”
Hubble first captured the Pillars of Creation in 1995, and again in 2014, but this image captured by Webb in 2022 is the sharpest yet, and shows many more newly-formed stars than previously seen.
Though Stephen's Quintet looks like a group of five galaxies, only four are actually engaged in cosmic interaction. This massive image is a composite of 1,000 image files and shows in “rare detail how interacting galaxies trigger star formation in each other.”