- Authorities in Stung Treng province, Cambodia, evacuate 25,000 below collapsed Laos dam as waters rise
- Facebook has the single worst day of any public company on the stock market - losing 19% or $119 billion market value
Observation of a black hole by The Very Large Telescope in Chile proves Albert Einstein's prediction of "gravitational redshift", published in "Journal Astronomy & Astrophysics"
- Over 700 immigrant children still separated from their parents in the US as court-imposed deadline to reunite them passes
- Simegnew Bekele, Ethiopian dam engineer (Grand Ethiopian Renaissance Dam), murdered at 53