When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...

A faint, irradiated streak carved into nearby interstellar clouds is giving astronomers their clearest evidence yet that two massive stars once brushed past our cosmic neighborhood and almost slammed ...

Add Yahoo as a preferred source to see more of our stories on Google. On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

Astronomers have chased hypervelocity stars for more than a century. These rare objects move so fast that the Milky Way ...

Scientists created the most accurate three-dimensional map of star-formation regions in our Milky Way galaxy, based on data from the European Space Agency's Gaia space telescope. This map will teach ...

CAPE CANAVERAL, Fla. (AP) — It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two ...

The Milky Way is expected to stand out in the sky in the coming days. The billions of stars comprising our home galaxy should appear especially vibrant in late-May as the band arcs across the night ...

Astronomers have directly observed a free-floating planet, comparable in mass to Earth, roaming the Milky Way. Discovered via gravitational microlensing due to its brief light curve, this rogue world ...