Russian investigators began examining the grave of Tsar Alexander III ahead of his exhumation in a probe looking to finally identify the remains of the last tsar Nicholas II and his family.
In a controversial shift, a leading US medical association urged women to wait until the age of 45 before getting an annual mammogram to screen for breast cancer.
Sweden's Tomas Lindahl, Paul Modrich of the US and Aziz Sancar, a Turkish-American, won the 2015 Nobel Chemistry Prize for work on how cells repair damaged DNA.
Derived from a herb used to treat fevers some 1,700 years ago, the anti-malaria drug artemisinin is one of many treatments plucked from the treasure chest of ancient Chinese medicine.
Research into brain diseases such as Alzheimer's, Parkinson's and traumatic injury got a boost with a $100 million pledge from a US foundation and seven universities.
Biotech stocks took a hit after Democratic presidential frontrunner Hillary Clinton pledged to take action against runaway price increases on specialty drugs.
Seven start-up projects from Kazakhstan have qualified in the final round of TECHNATION acceleration program for start-up teams from CIS, Europe and Asia.