Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

Rajendra Gupta proposed a cosmological model suggesting a universe significantly older (more than 10 billion years) than the ΛCDM model, primarily to account for the unexpectedly large size of early ...

For the first time, astronomers have spotted enormous, galaxy-scale shock waves rattling the "cosmic web" that connects nearly all known galaxies. These cosmic waves could reveal clues about how the ...