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KPCC's Science Reporter
Jacob's time in journalism began when he was 16, when he'd skip high school to spend his days working on the mid-day newscast at KPFK in Los Angeles.
Since then he's worked at NPR in Washington, D.C., as a producer on "The Madeleine Brand Show" and "Take Two" at KPCC and as a reporter, covering the political and social impact of California's new marijuana industry.
Now, he's the science reporter for the station.
Stories by Jacob Margolis
Californians have legalized recreational pot, the Associated Press projects, but you can't buy it in California tomorrow and probably won't be able to until 2018.
Nearly 600 students and staff gathered at USC's Wallis Annenberg Hall to watch Hillary Clinton and Donald Trump meet on stage for a final time. Take Two was there.
The presidential candidates' third and final debate Wednesday left some students saying they plan to skip the top of the ballot.
"If intelligence falls into the category of warfare...then yeah, I think you can make that argument that we're seeing an aspect of cyberwar here."
"We're used to thinking next year the drought's going to end or it's going to end after two years or three years... This might not be a three to five year thing."
California's Prop 64 would make recreational marijuana legal in the state. If the law passes, it would mean a big shift in the way the Golden State — already the largest market for pot in the U.S. — regulates marijuana.
For the first time, SpaceX will deliver a customer's payload to space on a rocket that's already been to space itself, which is unusual and risky.
You might get to relax this weekend, but JPL's Juno probe is going to be working overtime. After five years, it's finally ready to figure out Jupiter's back story.
Last year, California's fishing industry took a huge hit when a massive toxic algal bloom made its way up the coast. Could it be back?
In one year, day will be turned to night and for the first time in 38 years North Americans will get to see their first total solar eclipse. Are you ready?
As fire season gets worse in the western U.S., increased amounts of fine particles will likely have an adverse effect on public health.
The USC study finds two of the 10 Zika proteins inhibit fetal brain development. A drug to combat them is likely years away.
The failure of El Niño to bring significant rain is a reminder that a La Niña weather pattern does not guarantee a drier-than-normal winter.
Twelve years after being placed on the endangered species list, three subspecies of Channel Islands fox will be delisted - the fastest-ever recovery by a mammal.
The Perseid meteor shower comes along annually, but this year the sky will be flooded with shooting stars. It's all thanks to Jupiter.