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Scientists are growing increasingly large and sophisticated clusters of human brain cells. Ethicists are now wondering what to do if these minibrains start thinking.

The players are women over 50. The oldest this year is 87. They took the field in South Africa for their "World Cup." One team was crowned the winner but all the players consider themselves champions.

Maryland senator calls Abrego Garcia case a 'constitutional crisis,' a Louisiana senator says its a 'screw up'

Researchers are working on better ways to teach patients' immune systems to root out and kill malignant cells. A promising approach involves cells that attack cancer two ways at one time.

Genomic sequencing reveals new evidence of interbreeding among different groups of our ancient relatives. A scientist calls the find "almost too lucky to be true."