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

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

Black holes are notorious for gobbling up, well, everything. They're icons of destruction, ruthless voids, ambivalent abysses ...

An elongated object near the supermassive black hole at the center of the Milky Way, known only as ‘X7,’ has piqued the ...

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

That means it's more than 30 times the size of our own Milky Way galaxy. It's also enigmatic, the researchers say, with unusual qualities that defy simple explanation. They decided to name it after ...

Explore the breathtaking beauty of the cosmos with seven incredible images of star clusters and galaxies captured by NASA.

A team of scientists including the University of Toronto's Bart Ripperda and Braden Gail - assistant professor and graduate student, respectively, at ...

Known as Sgr A* – pronounced “Sagittarius A star” – the supermassive black hole is four million times the mass of the sun and is known to exhibit flares that can be observed in multiple wavelengths, ...