Valence electrons, located in the outermost shell of an atom, play an important role in driving chemical reactions and forming bonds with other atoms.

Photoshop CS6 tutorial showing how to make a scary-looking X-ray of a face from an ordinary headshot. Skull image: <a href=" ...

By Jack Guy, CNN (CNN) — Archaeologists have discovered the remains of a medieval knight, buried under a shuttered ice cream parlor in the Polish city of Gdańsk. Experts have been working at ...

By Jack Guy, CNN (CNN) — Scientists studying ancient human remains uncovered in Colombia have found that the people they were researching have no known ancestors or modern descendants. In a ...

05/15/2025 By Amanda Vozzo Special Colloquium Wednesday, May 21 4 p.m. Coburn 140 Title: The X-ray Sky in High Definition: 25 Years of Astrophysics with the Chandra X-ray Observatory Speaker: Pat ...

By Ashley Strickland, CNN (CNN) — A skeleton recovered from an intriguing Roman-era cemetery in England may mark the first physical evidence of combat between gladiators and animals, according ...

By Jack Guy and Joseph Ataman, CNN (CNN) — Homeowners in France have discovered a skeleton in the attic of an outbuilding while undertaking renovation work.

(CNN) — Archaeologists in Denmark have unearthed more than 50 “exceptionally well preserved” skeletons in a large Viking-era burial ground in the east of the country.

By VANESSA GERA Associated Press WARSAW, Poland (AP) — Polish prosecutors have ended an investigation into skeletons found at a site where German dictator Adolf Hitler and other Nazi leaders ...

By Silvia Marchetti, CNN Rome (CNN) — A two-year dig to install a solar power plant near Rome has unearthed an ancient Roman necropolis containing 67 skeletons buried in 57 ornate tombs ...