In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Explore the James Webb Space Telescope's incredible discovery: a cosmic alignment revealing the teenage years of our Milky ...

From supermoons to an eclipse and star parties at national parks, these captivating celestial phenomena will get Americans ...

SkywatchingScienceSkywatchingThe Next Full Moon is the Snow… Skywatching HomeWhat's UpEclipsesExplore the Night SkyNight Sky ...

Space can be a wondrous place, and we've got the pictures to prove it! Take a look at our favorite space pictures here, and if you're wondering what happened to today in space history don't miss ...

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

Moon phases reveal the passage of time in the night sky ... according to NASA's SKYCAL. If you need equipment for viewing the moon, check out our guide to the best telescopes and the best ...

A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the ...

The Hubble Space Telescope’s latest stunning images have allowed scientists to solve the mystery of the Bullseye Galaxy’s ...

NASA’s Telescope have captured a stunning image of stars that resemble a bouquet of flowers ahead of Valentine’s Day.The ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...