RACS J0320–35, a billion-solar-mass black hole 12.8 billion light-years away, is accreting far beyond the Eddington limit, according to NASA’s Chandra data.
Northern Hemisphere marks the official start of autumn tonight as the Sun sits above the equator; experts explain the equinox and how seasons are defined
Beef BE35 crash near Centennial Airport killed two pilots; investigators cite mid-air engine failure in preliminary findings
Rhodoliths create a knobby, popcorn-like surface at Playa del Bajo de la Burra, a natural phenomenon that attracts tourists but makes swimming risky.
Real estate agent helps shepherd the animal outside; authorities say rabies testing is pending
Forensic genetic genealogy linked to Bryan Kohberger in days after DNA on a knife sheath was tested, highlighting a method prosecutors say can accelerate solving cases
Social-media post on 6+7-3÷2 revives reminder to apply the order of operations
44-image Mastcam panorama offers one of the clearest looks yet at the Martian basin as the rover continues its mission to study Mars' past habitability
A simple-looking equation exposes gaps in common math assumptions and reinforces the classic rule PEMDAS.