The best mystery books are the ones that keep you guessing until the very end. These suspenseful stories will keep all age groups turning the page, on the hunt for the next clue. From classic kid ...

A new theory suggests black holes may not have singularities but act as portals, possibly leading to white holes. If true, it ...

"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time ...

Here is what you need to know about what many scientists have called the greatest mystery in the universe ... expansion of the universe would simply start to slow down because of gravity. Everything ...

Bone and muscle deterioration, radiation exposure, vision impairment -- these are just a few of the challenges space ...

Though Gravity Falls and Kim Possible are exponentially different, there are some surprising similarities in certain episode ...

Because of gravity, the energy remains stored until the object falls. At any point, you can let it descend controlled, using a generator or turbine to convert the downward kinetic energy back into ...

XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...

One of Gravity Falls' greatest strengths is its comedy ... The fan-favorite handyman of Mystery Shack made himself the top source of comedy from the moment he first appeared onscreen.

In a new book release, two scientists combine forces to explain the discoveries, developments and theories made in the realm ...