On Tuesday, parts of South American will experience a total solar eclipse. The path of totality passes over one the world's premier observatories located in Chile.
The eclipse will happen on July 2. Its path of totality cuts across much of the south Pacific Ocean as well as Argentina and Chile — including a telescope that is one the world's largest.
These works make apparent how singular an achievement America's moon landing was — and show that half a century later we're still grappling to understand its long-term meaning.
Three black female mathematicians' contributions at NASA were overlooked until the book and movie Hidden Figures. The street renaming coincides with the upcoming anniversary of the first moon walk.
Fifty years after Apollo 11's historic moon landing, journalist Charles Fishman tells the story of the 410,000 men and women who helped make the mission a success.
An instrument on NASA's Mars InSight mission that was supposed to be driven into the planet's soil is stuck. It's designed to measure Mars's internal temperature.
Light pollution has taken away much of the night sky. But there are still places far from city lights where amateur astronomers gather with their telescopes for what they call "star parties."
Somehow, at the beginning of time, there was an imbalance of matter and antimatter. That's how all the stuff in the universe came about. Scientists think they may find an answer by studying neutrons.