来自MSN46 分钟
These dwarf galaxies in the Hydra cluster are baffling scientists: 'We found something we ...
UDGs were first discovered in 2015; the formation and evolution of these ultrafaint, strangely elongated galaxies immediately presented a puzzle for ...
来自MSN56 分钟
Police killings set record in 2024, but with smallest increase in years: Report
In 2024, police officers in the US killed 1,365 people, a slight increase from the 1,329 civilians killed in 2023, according ...