This is an “Einstein Ring” or gravitational lensing. The blue galaxy is behind the yellow galaxy. We can see the blue galaxy because light from the far galaxy gets wrapped around by the closer galaxy. Photo courtesy of Hubble.
Lightweight DIY Raspberry Pi Laptop - The Raspberry Pi laptop has been constructed using a ￼PiJuice battery pack, Raspberry Pi a+ mini PC, an Adafruit TFT Screen together with a Wireless Keyboard and Mouse.
This image from Nasa's Spitzer Space Telescope shows a stellar nursery containing thousand of young stars & developing protostars near the sword of the constellation Orion. I heart the Spitzer space telescope.