Rubin Observatory’s first image reveals a vast stellar stream behind galaxy M61, likely formed from a disrupted dwarf galaxy, exposing hidden cosmic structures.

Chandler (1977) shows that large firms require hierarchies of white-collar workers to coordinate complex production. We document that this insight continues to hold globally today, and we show that ...

Numerous companies offer tests, which may involve blood, urine or saliva collection, and can be very expensive. The results ...

Weight fluctuations are normal. Weighing yourself strategically offers a true picture of progress. First thing in the morning ...