The scientific wonderers at What If travel back to a younger solar system to witness the violent collisions and the alien landscape of our planet's earliest days.

I thought about the interstellar visitor as my daughter, wife, and I took turns dragging his wandering monster truck balloon ...

The subject of UFOs and aliens is vast and complex, making it impossible to summarize in one article. Flying saucers/UFOs made headline news throughout the world in 1947, sparked by two major, highly ...

Dive into 25 Unanswered Questions About The Universe that baffle scientists. Explore dark energy, dark matter, the Big Bang, ...

Amazon is making its most aggressive move yet to close the gap with SpaceX to shortcut its way into becoming a cell service ...