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 ...

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

The Hubble Space Telescope has captured this striking image of an unusual galaxy with a bullseye structure, as nine rings ...

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

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

The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and ...

The European Space Agency's Milky Way-mapper Gaia has completed ... Gaia will leave its current orbit around Lagrange point 2, 1.5 million km from the Earth in the direction away from the sun ...

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

NASA’s James Webb Space Telescope has detected and “weighed” a galaxy – seen 600 million years after the Big Bang – that is similar to what our Milky Way galaxy might have ... we’re closer to the ...