Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the ...

Chile’s Vera C. Rubin Observatory, which boasts the world’s largest digital camera, has begun displaying its first images of the cosmos, allowing astronomers to figure out how the solar system formed ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...