Read a National Geographic magazine article about general relativity and get information, facts, and more about dark matter.

Time and Space Begin to Break DownIn 1905, a 26-year-old unknown technician working at the Swiss Patent Office sent a series of revolutionary papers to a German academic journal.This was Albert ...

In 1905, a 26-year-old patent clerk named Albert Einstein looked at the universe and discovered that time was not what we thought it was. It was not linear. For centuries, everyone assumed the same ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

The celebrated scientist transformed our understanding of space, time and energy but also of imagination, knowledge and life.

Space-time is the most powerful idea in modern physics. Yet a bold new philosophical challenge suggests we may not actually understand what space-time is — and that confusion about language is quietly ...

Learn how researchers used Einstein’s theory of general relativity to create the most accurate simulations to date. Think of a black hole, and you might imagine a literal dark hole, but contrary to ...

The Earth orbits the Sun. Then why doesn't the Earth fly away from the Sun into the depths of space? The one who provided the ...

There is a parlor game physics students play: Who was the greater genius? Galileo or Kepler? (Galileo.) Maxwell or Bohr?

Newton’s law of universal gravitation conceived gravity as a force acting at a distance within an absolute Euclidean space and universal time. This framework was superseded by the geometric paradigm ...

Starting with the Nobel Prize in Physiology or Medicine on October 5, the Physics and Chemistry prizes will be announced on ...