Also known as Muttnik, Laika the space dog made history in 1957 as the first animal to travel into Earth's orbit — and the first to die there.

Machu Picchu was rediscovered by an American explorer 105 years ago today. Here's what we know about the mysterious spot.

Time travel has long-been invoked in works of science fiction. But how close is it to becoming a reality?

One tiny region of Spain has had some unexpected -- and slightly concerning -- guests over the past several months: falling space junk.

Throughout much of 20th century Spain, a criminal network of doctors and nuns stole anywhere from 40,000 to 300,000 babies from their mothers at birth, constituting one of the most horrific yet least known events of the Franco dictatorship.

Most people believe that maps show the "truth" of the physical world. But how much are we really getting wrong?

Despite contributing so much to the world, many female scientists have failed to receive the acclaim that should have been theirs. Here are just some of the most important.

Last month, Switzerland opened its eighth baby hatch. Here's what it is and why it's so controversial.

Angered at then-President Bush's foreign policy in Iraq, one artist decided to buy a plot of land on eBay...and found his own country called Zaqistan.

While he's known for fiction, Dickens lived at a time when poverty could land you in jail.

Neither history nor the world is as "straight" as you would think.