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A comprehensive genetic analysis of metastatic prostate cancer has, for the first time, revealed a number of major ways in which abnormal alterations of the genome propel this aggressive form of the disease.

As the second half begins, we examine what history tells us about division leaders' chances of holding on down the stretch.

Although CRISPR has made headlines as a powerful system for editing genes, it actually evolved as way for bacteria to defend themselves against infection by viruses.

The Indians have bolstered their bullpen with the acquisition of Padres closer Brad Hand.

Now that Manny Machado has gone to Hollywood, what will baseball's top contenders do?

Is your favorite team down for the count? Probably. But there's still something for it to accomplish coming out of the All-Star break.

If Jacob deGrom hits the trade market, Chicago would have to deal from its major league roster to get him. Would the big addition be worth the price?

The trade of shortstop Manny Machado to the Dodgers on Wednesday night started the inevitable rebuilding process for an Orioles team that has bottomed out in 2018. Thus, Baltimore approaches the July 31 non-waiver trade deadline in full selling mode.

After heading to Hollywood in the Dodgers' latest deadline splash, rental extraordinaire Manny Machado's stay in L.A. is likely to last deep into October.

After a hold-up on a reported medical issue of a prospect, the Orioles and Dodgers are expected to finalize their agreed-to trade of Manny Machado to Los Angeles in exchange for a package of minor leaguers, a source told ESPN's Jerry Crasnick.

The Angels commended Mike Trout for "prioritizing his personal values over commercial self-promotion" on Wednesday, a day after MLB commissioner Rob Manfred said the outfielder would be an even bigger star if he spent more time marketing himself.

Rays catcher Wilson Ramos missed the All-Star Game after injuring his hamstring Saturday, and that has landed him on the 10-day disabled list.

Yoenis Cespedes played first base in a rehab game on Wednesday and is open to a position change, but the Mets seem content to keep the slugger in the outfield upon his return to the majors.

Vladimir Guerrero Jr., who was batting .407 when he got hurt, will come off the disabled list Thursday.

UCSF researchers discovered fully formed gut and skin cells in the thymus, the organ responsible for training the T cells of the immune system not to attack the body’s own tissues.

By now, you've probably seen The Freeze race fans at Braves home games. But every superhero has an origin story that must be told, and this is how The Freeze became a viral phenomenon.

Brewers pitcher Josh Hader will be required to take sensitivity training and participate in the league's diversity and inclusion initiatives after tweets from his past emerged during Tuesday's All-Star Game.

Manny Machado wasn't the only one who spent All-Star Week wondering what jersey he would be wearing by the end of July.

The Nationals have underachieved and their star slugger could leave at the end of the year. So is there any chance they could follow the Orioles' lead by moving their pending free agent?

This year's All-Star Game aimed to do more than play a game, and it showed off baseball's stars. But did it connect with fans?