Analysing data from 1975 to 2014, a study examining changes through three waves over 40 years by researchers at IIT Bombay and the University of Hyderabad found that productivity in India's semi-arid tropics depends less on farm size and more on access to inputs, credit, and markets.
A newly observed gravitational wave event from the collision of two massive, rapidly spinning black holes forces scientists to reconsider how these cosmic giants are born and grow.