This is an 80-million-pixel picture of the star cluster RCW 38, located 5500 light-years away in the constellation Vela. RCW 38 is a young cluster containing about 2000 stars, and is bursting with ...
The mosaic contains roughly 2.5 billion individual pixels — a new record for ... researchers to resolve more than 200 million stars in the image, which start to "look like grains of sand across ...