Our modern era of space observation and exploration deepens our connection with the universe—and with each other. When NASA ...

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

The spiral galaxies were characterized by disk shapes with spiral arms. It stood to reason that because the Milky Way was ...

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

and you may catch a hazy ark of light stretching from horizon to horizon—the spiral arms of our own Milky Way galaxy. Good luck with that. With light pollution getting worse with every passing ...

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

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

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

It looks like a flat stripe because we are viewing it from within its disk; if we were able to get above the Milky Way, it would look like an enormous spiral about 100,000 light years across.

The European Space Agency's (ESA) Gaia telescope has completed its objective - making the most detailed and precise map of the Milky Way galaxy. The agency shared the visuals on social media, ...