![Artist's interpretation of the Big Bang, with representations of the early universe and its expansion.](https://imagenes.elpais.com/resizer/v2/YIQADS65WZHKDGWFOMBJPJSKW4.jpg?auth=053a1371f2f6bd6d2ba01145d8e9a23b7c57e72fd3fa3f6a205b14d1b3140abd&width=414&height=233&focal=516%2C294)
Was all matter in existence formed in the Big Bang or is new matter still being created?
Mar Bastero Gil|
The Big Bang model is, for the time being, the one that best explains the universe
The Big Bang model is, for the time being, the one that best explains the universe
The launch from Cape Canaveral, with a SpaceX rocket, kicks off a mission to study the great enigmas of the universe from a spot 1.5 million kilometers from Earth