Old school: early Earth Day flag. Beverly, CC BY-SA Shahid Naeem, Columbia University Today is Earth Day, but it’s one of the ...

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

A team of astronomers announced on April 16, 2025, that in the process of studying a planet around another star, they had ...

Venus will be at its brightest in the morning sky — just 67 days after it was at its brightest in the evening sky. Here's why ...

A Soyuz capsule carrying two Russian cosmonauts and one American astronaut safely landed Sunday in Kazakhstan, concluding a 220-day mission aboard the International Space Station ...

NASA astronaut Don Pettit and two cosmonaut colleagues will return to Earth this evening (April 19), and you can watch their homecoming live.

A new study by astronomers about distance planet K2-18b has led to what they’re calling one of the most promising sign of extraterrestrial life in the universe.