Since astronomers found the first planets outside our solar system in 1992 and the first planet around a sunlike star in 1995 ...

NASA has confirmed the existence of 6,000 exoplanets. This milestone highlights the diversity of planetary systems.

Scientists have added a whopping 301 newly confirmed exoplanets to the total exoplanet tally. Scientists recently added a whopping 301 newly validated exoplanets to the total exoplanet tally. The ...

THE WOODLANDS, Texas — There's new hope for people who still believe that Pluto is a planet more than a decade after the International Astronomical Union (IAU) reclassified the object as a dwarf ...

It took 300,000 years for the human population to grow to one billion souls. We hit that milestone in the early 1800s. And then, that growth curve took off like a rocket. Only 200 years later, we’ve ...

CLEVELAND, Ohio -- The planets are officially named by the International Astronomical Union (IAU). According to NASA, this was an organization established in 1919 with the mission to "promote and ...

Star Gazers is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

Melissa Breyer is Treehugger’s former senior editorial director. Her writing and photography have been featured in The New York Times, The Guardian, National Geographic, Audubon Magazine, and ...

Sign up for the On Point newsletter here. It took 300,000 years for the human population to grow to one billion souls. We hit that milestone in the early 1800s. And ...