The motions of stars in the Milky Way have revealed a giant outward ripple, set off by a massive event sometime in our galaxy's wild past. In a new analysis of data collected by the Gaia space-mapping ...

Gravity is pulling more than just stars together - it’s dragging entire galaxies into violent encounters. The Milky Way is currently absorbing the much smaller Sagittarius Dwarf Galaxy, and the ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...