In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic center.

If you look up on a clear night from a darksky location, you might see the Milky Way as a faint band of thousands of stars. But these sparkling lights are just a tiny fraction of our cosmic ...

Artist's impression of a supermassive black hole surrounded by gas and dust in four different wavelengths of light. Visible light (top right) and low-energy X-rays (bottom left) are blocked by the gas ...

By combining data from NASA’s IRAS and NuSTAR telescopes, scientists have uncovered more hidden supermassive black holes than earlier estimates suggested. Their findings indicate that over a third of ...

South Africa's MeerKAT telescope has revealed a remarkable cosmic discovery—Inkathazo, a newly identified giant radio galaxy ...

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

The James Webb Space Telescope (JWST) continues to transform our understanding of the universe. By combining its advanced ...

From vibrant star-forming nebulae to supernova explosions, check out these 7 astonishing images of deep space shared by NASA.

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 ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.

The Andromeda galaxy is our closest galactic neighbour, barring dwarf galaxies that are gravitationally bound to the Milky ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...