Mass

Ray Attacks Snorkeller Amid South Australia Algal Crisis

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Australia south australia relief location map

Why would a usually calm marine creature suddenly turn aggressive? In a rare and alarming event off South Australia’s Yorke Peninsula, a ray attacked a snorkeller—raising serious questions about what’s going on beneath the waves. With marine animals dying in droves and odd behaviors emerging, scientists now believe toxic algal blooms might be the hidden … Read more

DESI Found 300 Candidate Intermediate Mass Black Holes

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This is Omega Centauri, the largest and brightest globular cluster that we know of in the Milky Way. An international team of astronomers used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Image Credit: ESA/Hubble & NASA, M. Häberle (MPIA)

If Intermediate-Mass Black Holes (IMBHs) are real, astronomers expect to find them in dwarf galaxies and globular clusters. There’s tantalizing evidence that they exist but no conclusive proof. So far, there are only candidates. The Dark Energy Spectroscopic Instrument (DESI) has found 300 additional candidate IMBHs. Logic says that IMBHs should exist. We know of … Read more