“Many astronomers are really driven by the search for Earth twins because I think deep down the natural endpoint of this whole goal of looking for planets is to answer the question, are we alone?”

Dubbed “Valeriana” by researchers, the city of 50,000 peaked around 800 AD before being swallowed by the jungle.

From King Midas to Gordon Gekko, humanity has struggled to grasp greed’s true nature.

The race to find dark matter could grow more complex with high-energy neutrino interference.

Why hasn’t matter fallen apart over billions of years? The mystery might start with protons.