Talk about a hot mess. Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot enough to melt rock into a churning ocean of magma and ...

It's one of the biggest unanswered questions in science: are there aliens out there, and if so, where are they hiding? Now, a discovery by NASA has raised the tantalising possibility that we're not ...