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

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

The future of galaxies remains one of the most interesting topics for experts. In fact, they will not survive the passage of ...

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

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

Astro Tourism is the travel trend you didn’t know you needed. As 6 planets align in February 2025, here are best spots to watch the rare event in Saudi Arabia.