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Astrophysics1171 articles archived since 1845

Fiery Holes in Space and Time

Black holes may be bubbles devoid of space and time—and encased in “firewalls” that confound both general relativity and quantum mechanics

December 1, 2015 — Joseph Polchinski

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