Science

In a first, marijuana substance reduces seizures for some epilepsy patients in clinical trial

By Andrew Joseph, STAT

A component of cannabis reduced seizures in children with a rare form of epilepsy, marking a significant step in efforts to use marijuana and its derivatives to treat serious medical conditions.

In Trump's EPA, industry has more voice in shaping science

By PBS News Hour

As a candidate, Donald Trump vowed to dismantle the EPA in “almost any form.” And the budget the White House unveiled Tuesday cuts EPA funding by a third. But what’s less known are recent moves that would give the industry…

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Brace yourself: This prosthetic engineer is giving animals a leg up

By Julia Griffin

Derrick Campana made the jump to animal prosthetics and orthotics 12 years ago -- when few, if anyone, created artificial limbs for dogs and other pets.

Thar she grows! How whales got so big

By Andrew Wagner

Using computer models based on a Smithsonian's fossil collection, evolutionary biologists now believe whales' gigantic size was driven by climate change.

Twitter Chat: How much screen time is appropriate during a child's development?

By Lora Strum

Dr. Nathan Chomilo will join NewsHour science producer Nsikan Akpan for a Twitter chat at 1 p.m. on Thursday, May 25th to talk about the risks of mobile device usage by children.