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Cosmology591 articles archived since 1845

Giant Bubbles Soar over the Milky Way

Newly discovered lobes stretch tens of thousands of light-years above and below the Milky Way's disk. Where did they come from?

December 16, 2015 — Douglas Finkbeiner, Meng Su and Dmitry Malyshev
Superstars of the First Galaxies

Superstars of the First Galaxies

Emerging evidence suggests that the first starlight to shine after the big bang’s flash came from distant suns that ranged from very large to incredibly huge

November 30, 2015 — Michael D. Lemonick

Little Galaxy Keeps Churning Out Stars

The recently discovered small galaxy Leo P contains only about a hundred-thousandth as many stars as the Milky Way, but it's bucking the small galaxy trend by continuing to make new ones  

November 15, 2015 — Ken Croswell and Steve Mirsky