So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully understand it, but the first evidence for exoplanets was found in 1917.

What can exozodiacal dust, also called exozodi, teach astronomers about identifying Earth-like exoplanets? This is what a ...

In a paper slated for publication April 14 in Science, Currie reports the first exoplanet jointly discovered through direct ... Its host star is surrounded by icy debris left over from planet ...