Our editors scrounged up some truly bizarre facts.
Microbes that eat and breathe electricity have forced scientists to reimagine how life works—on this planet and others
We've rounded up 2014's most mind-blowing images for your viewing pleasure
Ten of the brightest minds in science fiction imagine how we will live—on Earth and beyond—in the decades and centuries to come.
Islamic leaders ruled that a Mars journey would be akin to suicide, but the private Mars colonization project disagrees, citing a 14th century Muslim explorer.
Choosing between the Earthlings you love and the adventure of a lifetime
With the upcoming release of the major motion picture Europa Report, a couple of Jet Propulsion Lab scientists explain how science fiction has evolved in response to our growing understanding of space.
In a wide-ranging interview with PopularScience.com, Aldrin talks about a mission to Mars, 34 years of sobriety and the future of American leadership in space.
Anyone looking for evidence of life there had better hope it's not red all the way down.
Nobody has ever tried anything like this on Mars before.
The simple tricks to fool Earth-evolved humans into living on Mars time.
For the first time, scientists can actually observe the remnants of flowing water on Mars.
Call us, maybe
As Mars rover Curiosity approaches its terrifying landing, we have to face the fact that 'Mars wins most of the time'
And whether they'll look like E.T.
Last December, Felisa Wolfe-Simon announced the discovery of a microbe that could change the way we understand life in the universe. Soon she found herself plunged into a maelstrom of bitter backlash and intemperate criticism. A dispatch from the frontiers of the new peer review
Bogus canals on Mars, alien germs from Venus and the "truth" behind UFOs
The public can now take advantage of "the people's camera" aboard a distant Martian orbiter
Titanic honcho James Cameron has some advice for NASA on how to both seduce and educate a jaded public
Controversial theorist Aubrey de Grey insists that we are within reach of an engineered cure for aging. Are you prepared to live forever?