Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches Earth in December 2025.

Learn how to watch interstellar comet 3I/ATLAS as it makes its final flyby of Earth today at 153,000mph before disappearing ...

But the most striking discovery was just how chaotic the Milky Way’s early life appears to have been. The youngest galactic ...

NASA’s SPHEREx has mapped the entire sky in 102 infrared colors, which are invisible to the human eye but can be used to ...

NASA is preparing to turn the center of our own galaxy into a precision test bed, using the Nancy Grace Roman Space Telescope ...

NASA’s SPHEREx Observatory maps the entire sky in 102 infrared colors, enabling 3D galaxy distribution studies, cosmic ...

An interstellar comet believed to be billions of years older than the Sun passed its closest point to Earth on Friday, giving ...

"Virgil has two personalities, its 'good' side – a typical young galaxy quietly forming stars. But Virgil transforms into the host of a heavily obscured supermassive black hole, pouring out immense ...

Dec. 19 (UPI) -- Comet 3I/ATLAS passed its nearest point to Earth early Friday and approaching within 168 million miles.

Space telescopes are typically optimized either to study a small patch of the sky across many wavelengths of light or to ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...