The Hindu Daily Digest for July 20, 2025: What is the universe’s antimatter mystery?; What does the sugar and salt labelling say?; BioEmu sketches the moving picture of protein structures; Greater awareness helps to deal with rare diseases; Jaffna mass grave, a test for the Dissanayake government; Ahead of next year’s polls, Jamaat-e-Islami projects force with rally in Dhaka; Top court to hear Article 143 reference on President and Governor’s powers on July 22; Centre nearly doubles PSU dividends since 2020, thanks to coal, oil firms