Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.

The carbon filament used in Edison’s 1897 light bulb experiments generated the precise amount of heat needed to produce ...

The history of ‘everyone’s favorite hexagon’ illustrates the resonance of basic science and how discoveries build over time ...

For a mere moment after the Big Bang, no neutrons or protons are thought to have existed. These neutral and positively charged particles, respectively, make up the center of all atoms today. But ...

For the first time, physicists have developed a model that explains the origins of unusually stable magic nuclei based ...

Scientists call this speck LUCA — the Last Universal Common Ancestor. Since the concept of LUCA first emerged, it has ...

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

Life’s story may stretch further back than scientists once thought. Some genes found in nearly every organism today were already duplicated before all life shared a common ancestor. By tracking these ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

Scientists have finally discovered how amino acids essential for life formed on the 4.6-billion-year-old asteroid Bennu.