Where in the Solar System is Vulcan?

A hypothetical Planet Vulcan was the best explanation for strange astrological phenomena—until Einstein, that is. 
HTML

The Internet’s Baby Pictures, 25 Years After the Birth of the Web

Tim Berners-Lee set up HTML (hypertext markup language) and HTTP (hypertext transfer protocol) twenty-five years ago today.

Our Oceans Are Suffocating

The oceans can’t catch a break. To rising temperatures and acidification caused by rising CO2 emissions, add oxygen deprivation .

Sending Tiny Robots to the Nearest Star

A group of astrophysicists think they have found a way to send a probe to the newest star system, Alpha Centauri.
Tyrannosaurus rex skeleton (the specimen AMNH 5027) at American Museum of Natural History.

An Asteroid Killed the Dinosaurs. Right?

What killed the dinosaurs? An asteroid wiped them out, right? New research suggests that even before that cataclysm, dinosaurs weren't doing so well.
From left to right: W. Nernst, A. Einstein, M. Planck, R.A. Millikan and von Laue at a dinner given by von Laue

Who was Max Planck?

Max Planck was a German physicist who won the Nobel Prize in Physics in 1918. 
Leonardo da Vinci botanical study, circa 1490

Leonardo Da Vinci, Artist/Scientist

Leonardo was the first scientific illustrator.
Fossil of Tullymonstrum gregarium, an extinct animal

The Tully Monster, Monstrous No More

The identity of the Tully monster, a 50-year-old paleontological mystery, has been solved.
Astronaut in space

What Happens To The Body in Orbit?

Scott Kelly has returned from a year in orbit. How has he fared? Turns out space flight really does do a number on the body.
Copernicus

Copernicus’s Body Identified by Stray Hair

Stuck in a book for centuries, strands of Copernicus's hair helped identify his body in 2005.