More than 30 countries allow for unrestricted birthright citizenship, including, for now, the U.S. On Wednesday, the Supreme ...

Earth’s nights are steadily getting brighter overall, but the changes vary dramatically by region. Rapid urban growth is ...

STARRS, also known as comet C/2025 R3 (Pan-STARRS), is now visible before sunrise. Here’s how, when and where to find it on ...

Viewed from a great distance in both space and time, the nighttime glow of inhabited areas on Earth is steadily increasing. However, the hidden variability within in this overall change has been ...

STARRS, also known as comet C/2025 R3 (Pan-STARRS), is quickly becoming the must-see celestial event of 2026. Here’s how, ...

The stratospheric polar vortex is entering its seasonal collapse. But that doesn’t mean calm weather is coming. What's ...

April evenings provide views of the two brightest planets, though only one stands out. Jupiter gleams at magnitude –2.1 and ...

Throughout history, just about every stargazing culture on the planet developed its own unique set of constellations and mythological stories, many of ...

It is part of Derrick H. Pitts’ nature that he can vividly recall the sky conditions over this village when he visited St. Lawrence University in the mid-1970s as a soon-to-be student “I had ...

Stargazers can enjoy unique views of Mercury, a planet parade, and the Zodiacal Light.

The Pan-American Highway was designed to connect the entire Western Hemisphere by land. In theory, it would allow ...