Skeptophilia

I first ran into the concept that not all planets had hard, rocky surfaces -- like Earth, and the ones I was all too familiar with from scie...

I know we really don't need anything else to worry about.  World events have been depressing enough, and here in the United States we...

From Gordon's Obsession #1 (paleontology) yesterday, today we're moving on to Gordon's Obsession #2: outer space and extraterres...

I am not superstitious -- something that regular readers of Skeptophilia  would hardly need pointed out -- but sometimes I think the univers...

I still remember when I was about twenty years old, and I first heard about Carl Sagan's proposal to terraform Venus. On first glance,...

In yesterday's post, I looked at some new photographs from the Hubble Space Telescope of one of the oddest objects in the universe -- th...

One of the most unusual stories that H. P. Lovecraft ever wrote is "In the Walls of Eryx."  It isn't the usual soul-sucking el...

It's tempting to think that conditions on Earth have always been like they are now. On one level, we know they weren't.  When peop...