Cosmic gas flows, not collisions, explain Milky Way's double chemical signature

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...
NBC DFW

Milky Way's chance of colliding with Andromeda? New study puts odds at 50-50

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 spiral galaxies colliding is ...
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Experts say Milky Way has 50-50 chance of colliding with neighbor galaxy. But when?

Astronomers now believe the Milky Way's "inevitable" collision with a neighboring galaxy is much less likely than originally ...
Science Daily

This surprising discovery rewrites the Milky Way’s origin story

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...
Space on MSN

Galaxy cluster collision created 1.6 million mile shockwave

NASA Chandra X-ray telescope data from galaxy cluster Abell 2146 showed a "shockwave that stretches for some 1.6 million ...