You can choose bright, dark, and solid colors or personal photos from the list of wallpapers to change the group chat wallpaper. Depending on the eyes’ comfort, some may choose a dark theme at ...

For this stuff, dark field microscopy (where you get bright objects against the dark background) is obviously better than bright field. I'm just starting to figure out how to do it.

You can read more about Euclid's first data release and learn about how the space telescope sees into the dark universe. You can also read about Euclid's history, beginning with its launch in 2023.