Scientists didn't discover a parallel universe—they discovered one hidden inside our own. At the quantum scale, particles can ...

Stars shine because atoms fuse in their interiors, releasing energy. When a very massive star has exhausted its nuclear fuel, radiation pressure can no longer provide sufficient counterforce to ...

What lies beyond the observable universe? It is one of the greatest unanswered questions in science. From cosmic inflation ...

What if some black holes aren’t black holes at all? A new theoretical study suggests that when a massive star collapses, it might not form a singularity hidden behind an event horizon. Instead, the ...

Understanding the universe as a whole requires simulations on cosmic scales. An international team of astrophysicists, with a leading role for researchers at Leiden University, Netherlands, has now ...