The implications of the exploration strategy in Project Kronos may look fascinating, but imply some very scary and disturbing things...

One of the biggest questions no one asks ancient astronaut theorists is if they think our ancestors ever wrote fiction.

Europa is one of the most promising places to find alien life in our solar system, but exploring the moon isn't as easy as just landing on the surface and starting to drill and probe.

Extrasolar moons of gas giants may be the perfect worlds for life outside out solar system. And they should be even more common than planets.

Panspermia is a somewhat out there hypothesis. But it deserves a serious investigation, not just quick dismissals citing its origins.

It's one thing when people can't explain the weird things they see in the night sky. But what if a UFO sighting takes place over a military base and high ranking officers have no idea what happened?

For all the excitement about this potentially habitable world, we still don't know much about it and its ability to host life.

A study using soldier crabs to emulate computers is actually a perfect illustration of how different alien computing could be.

If aliens want to go really, really fast, there's a small chance we could catch them in the act.

Mars should have some sort of live according to all the evidence we've gathered so far. But do we really know for what we're looking?

For decades, scientists thought that a habitable world needed a large moon to act like a rudder. That idea might not actually be true.

As vast empires on Earth once learned, claiming an immense territory doesn't mean controlling it.

Reverse-engineering alien technology is a common sci-fi and conspiracy theory trope. But doing it in real life would be a lot harder than it sounds...

Ancient astronaut theorists claim that aliens wanted our planet for gold mining. But why would they need gold, much less in a place where it's hard to extract?

A study says that more of Mars than Earth should be hospitable to life. But the data on which this conclusion is based is incomplete.