Black hole light echoes are an extreme form of gravitational lensing. To measure the masses and spins of black holes, ...

What truly happens inside a black hole? Dive deep into one of the universe’s greatest mysteries, where spacetime bends beyond ...

A new study suggests galaxies in the early universe appear much larger and brighter than expected, precisely as predicted by ...

As we gaze into the universe, we've discovered most galaxies have a supermassive black hole lurking near the center.

As if searching for dark matter isn't difficult enough already, physicists may have detected another hurdle known as a ...