The most energetic "ghost particle" neutrino ever detected may have been blasted at Earth by blazars, black hole engines that are powerful cosmic particle accelerators.

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Woven through the universe are forces, often unseen, that dictate its grand design. For example, at the very heart of nearly every galaxy, we find a supermassive black hole. This isn't just some ...

Dark star -- A map of forever -- One hundred billion ways to the bottom -- The feeding habits of nonillion-pound gorillas -- bubbles -- A distant siren -- Origins : part I -- Origins : part II -- ...

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Astronomers have detected a collision between two black holes in unprecedented detail, offering the clearest view yet into the nature of these cosmic oddities and confirming long-held predictions made ...

They’re the boogeymen of science fiction, a paradox of science and quite possibly a key to understanding the universe. Scientists have been scrambling to understand the mysterious forces of black ...