What started as an antitrust lawsuit brought by states over just two drugs in 2016 has exploded into an investigation of alleged price-fixing involving at least 16 companies and 300 drugs, Joseph Nielsen, an assistant attorney general and antitrust investigator in Connecticut who has been a leading force in the probe, said in an interview. His comments in an interview with The Washington Post represent the first public disclosure of the dramatically expanded scale of the investigation.

Some 7,000 light years away, Einstein’s theory of general relativity has stood up to its most intense test yet, scientists said on Thursday.

Scientists used a 3D printer loaded with cells to create mini livers which can be infected with a disease to observe its progress through organ.  The tiny livers can also be used to monitor effectiveness of drugs.

There’s a new way to create materials with the properties of living tissues. Oxford University scientists have designed a programmable 3-D printer than can pump out a material that can flex like muscle or communicate like neurons.

The FDA has proposed new rules aimed at improving the safety and reliability of automated external defibrillators, like this one on a commuter train near Boston. AEDs treat patients suffering from sudden cardiac arrest by shocking the heart back into a normal rhythm.

Publishing house Macmillan on Friday became the fifth and final U.S. book publisher to sign a settlement with the government in a sweeping antitrust case that accused them of conspiring to raise e-book prices.

After running 1,000 computers non-stop for 39 days to uncover the world’s largest prime number yet, a Missouri college professor said this week he is starting all over to top his own record.

The first soldier to survive after losing all four limbs in the Iraq war has received a double-arm transplant.  He also received bone marrow from the same dead donor who supplied his new arms. That novel approach is aimed at helping his body accept the new limbs with minimal medication to prevent rejection.

It may be decades before machines take the place of doctors — yes, it’s possible — but Bedford-based iRobot has won federal approval for a rolling robot that can now connect physicians with patients anywhere in the world.