'Pokémon Go' Grass Event Celebi: Everything you need to know about the Gen 2 legendary

The 'Pokémon Go' grass event is underway, will we see the famed Gen 2 legendary Celebi?

'Time After Time' Review: Sexy H.G. Wells and Jack the Ripper make for surprising fun

No one's winning their Emmy for 'Time After Time,' but it's well worth the watch.

'Time After Time' is really about a sexy H.G. Wells and Jack the Ripper

How do we feel about sexy serial killers?

'Outlander' season 3 premiere date announced: Why is the Starz series delayed?

Time travel won't make season three of 'Outlander' arrive any more quickly.

15 Science fiction movies you need to watch at least once

The essential cinema guide to aliens and time travel

Netflix 'Travelers' review: A flawed but surprisingly entertaining time-traveler show

'Travelers' won't win any awards, but it's still a worthy binge-watch for any sci-fi fan.


Physicists Have New Proof That Backward Time Travel Is Impossible

This could change the laws of physics as we know them.

Bran, Hodor and 'Game of Thrones': Is It Possible to Time-Travel and Change History?

We now know why Hodor is Hodor on 'Game of Thrones.'

‘Game of Thrones’ Season 6, Episode 5 Recap: Hodor’s Origins Are Tragically Revealed

As one door in 'Game of Thrones' opens, another is being held in place, literally.

Could Time Travel Be Possible? Here Is What Some Scientists Say About the Theory

It depends on what you mean by "possible."


9 Brilliant Pieces of Science Fiction You Can Read in the Time It Takes to Eat Lunch

The space traveler's guide to short fiction.

Physicists Used Facebook to Hunt Down Time Travelers

Here's what they discovered.

Here's Your 3-Minute Guide to Time Travel

There's three easy ways, and three pretty hard ways.

'Doctor Who' Season Finale Review: Strong Ending the Show is Known For

The one place a time traveler must never go. Spoilers, Sweetie!

NASA Warp Drive: Why Sci-Fi Says It's a Bad Idea

Science-fiction has shown us that potential contact with aliens or even resources will not turn out well for us and we should probably avoid it.

Looper Movie Review: the Ethical Dilemmas of the New Joseph Gordon Levitt Movie

The sci-fi noir flick Looper, starring Bruce Willis, Joseph Gordon-Levitt, and Emily Blunt, poses some interesting and difficult ethical questions. Is your future set in stone? (Warning: spoilers

Usain Bolt Running Record Could Soon Be Shattered By a Robotic Cheetah

DARPA and Boston Dynamics have created a cheetah that could run 28.3mph. Here are 8 revolutionary uses for this technology.