Discovery of a Lonely Galactic Hedgehog
The Hedgehog galaxy is one of the most isolated dwarf galaxies known — but despite its serene location, it might not have formed any new stars in the past 100 million years.
Citizen scientists have identified 7,000 swirling vortices on Jupiter, leading to some surprising findings.
Does the standard cold dark matter model of the universe work on small scales? The dark matter distributions of ultra-faint dwarf galaxies seem to deviate from what is expected, implying a need to rethink how dark matter behaves.
Researchers have identified dozens of stars tidally disrupted by black holes, and upcoming surveys may discover 1,000 of these rare events each year. Today’s Monthly Roundup introduces three studies that have advanced our understanding of shredded stars.
Astrobites reports on tests of cosmological models using measurements of nearly 2,000 supernovae from the Dark Energy Survey and other sources.
The collapse of a magnetar into a black hole may power the strongest shocks in the universe and produce brief, bright flashes of gamma rays.
Space is filled with structures that we can’t see directly. How do astronomers trace the underlying dark-matter distribution of the universe?
A data-driven approach identifies stars with interesting infrared emission without relying on computationally expensive modeling.
Astrobites reports on an analysis of the orbital architecture of JWST’s first directly imaged exoplanet using time-series photometry data from the Transiting Exoplanet Survey Satellite.