Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

NASA/ESA Hubble Space Telescope, Gemini North telescope and NASA Infrared Telescope Facility observations of Neptune and Uranus may have revealed why they differ in color. Credit: Directed by: Bethany ...

Half of the universe's hydrogen has been missing since the Big Bang 13.8 billion years ago, but scientists reckon they've ...

A new idea about cosmic expansion has emerged that might remove the need for dark matter and dark energy altogether.

Explore NASA’s top 10 rare and stunning galaxy images, showcasing vibrant interactions, cosmic collisions, and star-forming wonders that highlight the universe’s dynamic beauty.

During his Senate confirmation hearing to head NASA, Trump nominee Jared Isaacman envisions space stations and outposts on ...

Astronomers have peered back in time to find what looks like a population of 'hidden' galaxies that could hold the key to unlocking some of the universe's secrets. If their existence is confirmed it ...

Astronomers have reached deeper into the heart of a brilliant cosmic engine than ever before, using NASA’s Hubble Space ...

NASA said the telescope is expected to collect data on more than 450 million galaxies and more than 100 million stars in the Milky Way by surveying the entire sky in 102 infrared wavelengths.

Astronomers using the James Webb Space Telescope to look back in time have found the earliest evidence of the universe ...

A new NASA space telescope has turned on its detectors for the first ... and even understand the period of rapid inflation ...

The Flaming Star Nebula: This breathtaking NASA APOD image reveals the dynamic clash of powerful stellar winds and dense cosmic material, sculpting the nebula into a blazing, dramatic masterpiece. The ...