Catholics and all people committed to protecting the planet must keep climate action from slipping into trends or tribalism, Pope Leo XIV said as he opened a global church summit on climate change ...

Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding ...

The Vatican’s “trial of the century” has resumed with appeals after setbacks for the pope’s prosecutors. Cardinal Angelo Becciu and eight others were convicted of financial crimes in 2023.

VATICAN CITY (AP) — Pope Leo XIV is facing his first major crisis with traditionalist Catholics, after a breakaway group ...

A combination photo shows Pope Leo XIV smiling as he greets visitors and pilgrims in St. Peter's Square at the Vatican Sept. 10, 2025, and U.S. President Donald Trump smiling after arriving at the ...

This process could help explain how the comets found at the outskirts of our own solar system formed. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Dark matter is a mysterious substance that glues galaxies together. This map from the James Webb Space Telescope could help scientists finally figure out what it is. Using data from the James Webb ...

A bone fragment from the year 189. A colorful early 20th century Swiss Guard uniform from the Vatican Army. Four lead conclave seals from the election of Pope John Paul II. These are just a few of the ...

This NASA/ESA/CSA James Webb Space Telescope Picture of the Month brings us a scene from the distant universe. Pictured here is the galaxy cluster MACS J1149.5+2223, or MACS J1149 for short, which is ...

Since the resolution of a telescope depends on the wavelength size, radio telescopes have to be huge. It would take a radio dish nearly 10 kilometers wide to get the resolution of a large optical ...

I have been writing about the Giant Magellan Telescope for a long time. Nearly two decades ago, for example, I wrote that time was “running out” in the race to build the next great optical telescope ...

Mock observations test the performance of the Chinese Space Station Telescope as the 2-meter-class observatory moves closer to launch. When you purchase through links on our site, we may earn an ...