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Tomato plants grown in large scale outdoors are often selected for hardiness more than taste. What if you could boost disease resistance, flavor and yield? Researchers think they can — by grafting.

Scientists have tested all sorts of strategies to keep Lyme disease ticks from biting us. One is to make it less likely you'll cross paths with the critters in your yard. Sawdust mulch, anyone?

Pavel Sheremet was assassinated when a car he was driving exploded in Kiev on Wednesday. The Ukrainian president has called for an investigation.

Twitter says it's reviewing its hateful-conduct policy. The suspension of conservative writer Milo Yiannopoulos has prompted a new focus on the company's ongoing struggle to rein in abusive messages.

A terrible drought hit Ghana in the 1400s, far worse than today's conditions. Yet people had enough to eat, while today they go hungry. What changed? In a word, colonialism, a new study suggests.

The 5th Circuit ruled that the law might not intentionally violate voters' rights, but does have a discriminatory effect. It called for a lower court to fix the problem before the November elections.

Turkey's President Recep Tayyip Erdogan is reasserting his control following a failed military coup with widespread purges of the country's institutions.

In a pilot program in South Africa, teens who are not infected with HIV are going on a preventive regimen of anti-AIDS drugs.

The latest movie in the Star Trek franchise opens on Thursday — though it premiered Wednesday night at the San Diego Comic-Con. Director Justin Lin was there to walk the fine line with fans.

Amid the horrors and divisions of 1968, Americans weren't as polarized as they are today. Nixon was making an appeal to a nation still hoping for a solution to its seemingly endless catastrophes.