Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

Astronomers discover an 850,000 light-year-long cosmic filament in the early universe, providing insights into large-scale ...

At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

Astronomers have constructed the first detailed 3D map of the properties of cosmic dust in our home galaxy. For their map, the astronomers used 130 million spectra from ESA's Gaia mission, results ...

"We thought they were basically all going to be fried because the entire universe turned into a vat of boiling oil." ...

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 ...

One researcher’s analysis of Webb Space Telescope images could indicate that we’re all stuck in a black hole, according to ...

The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

Understanding the evolution of radio galaxies is crucial for unravelling the broader processes that shape the universe.

NASA astronaut Don Pettit captures a breathtaking photo of the Milky Way from the ISS, highlighting the stunning view of our ...

His measurements marked the end of the Great Debate about the Milky Way’s size and the nature of the nebulae. Hubble wrote about his discovery to Harlow Shapley, who had argued that the Milky ...