Aleszu Bajak

Science journalist

Published works | Speaking engagements | Classes taught | Fellowships & Awards

Aleszu Bajak is a senior writer at Undark, a magazine exploring the intersection of science and society based at the Knight Science Journalism Program at M.I.T. He also freelances for outlets like The Washington Post, MIT Technology Review and Nature and teaches journalism, design, data visualization and programming at Northeastern University and Brandeis University.

Aleszu is the editor of, an under the hood guide to digital storytelling, and, a resource for science news and opinion out of Latin America. In 2015, he launched and edited Esquire Classic, the digital archive of Esquire magazine. In 2013, he was awarded a Knight Science Journalism Fellowship at M.I.T. where he explored the interface between journalists, designers and developers between visits to the Muddy Charles.

Aleszu has been a freelance reporter in Latin America, a producer for the public radio show Science Friday, and once upon a time worked in the gene therapy department at Weill Cornell. His writing has appeared in The Washington Post, the Boston Globe magazine, MIT Technology Review, Esquire, Nature, Science, New Scientist, and Guernica, among other outlets. He grew up in New Jersey, Germany and Colombia and has lived in Chile, Peru and Argentina. He can be reached at firstname lastname at



The Prenatal Impacts of Violence

Rise of the Cancer Avatars

Map The Persistent Scourge of Lead Paint

A Vaccine for the Opioids Crisis?

The Blind Pursuit of Mosquito Control

New Orleans Knows Mosquitoes


Ocean Waves Are Getting Stronger

Farming Could Spell Disaster for Cuba’s Coral Reefs

Climate Change Could Pinch the World's Chocolate Supply

Can Forests be Called Renewable Fuel?

Podcast Rebuilding Louisiana’s disappearing delta


Awaiting the 'Big One' in Oregon

Map Setting Solar Power Afloat (or Not)

Could Drones More Accurately Disperse Pesticides?

Homemade Drones, Peruvian Glaciers

Browse all my stories for Undark here.

The Washington Post

Someone is tracking how much you vape on Twitter

Her brain tormented her, and doctors could not understand why

What does Twitter say about your diet?


Chile’s scientists take to the streets

Argentina: The RNA sleuths

U.S. assesses virus of the Caribbean

Key Galapagos research station in trouble


How Quartz is bringing storytelling and interactive design to sponsored content

Revolutionizing the work of newsrooms by making citizen videos searchable

How to learn responsive web design by coding your own news article

How to organize your data for various charts and graphs

Science Insider

Colombian coffee science

Lectures aren’t just boring, they’re ineffective, too

Abundant natural gas may do little to reduce U.S. emissions


Boxing in Cuba (book review)

Phil Caputo: What I've Learned

Don Zimmer’s hard head

Frank Sinatra Turns 100

Map Arthur Miller's New York Universe

Quiz Which Tech Titan said it?

Dataviz Happy Birthday, Martin Scorsese!

Science Friday

Video Dean Kamen and the FIRST robotics competition

Video Counting horseshoe crabs on Long Island

Video Tending crops on a Brooklyn rooftop

New Scientist

Catcher in the fog

Global Post

Fossil fuels get a lot more global subsidies than public health does

Failures of Brazil's universal health care plan offer lessons for the US

Ensia magazine

The world is awash in pesticides. Does it have to be?

In Water We Trust

Beer Advocate magazine

Sequencing Wild Yeast

Unlocking the Science of Hop Aromas

The Lager Yeast Genome Project

Brewing in Thin Air


Safeguarding biodiversity in tourism hotspots

Represas hidroeléctricas propician extinción de especies

Prevenir pandemias es más barato que combatirlas

Intervención de la comunidad ayuda a prevenir el Chagas


Catching fog in Lima

Trunk magazine

Darwin, Neruda and Me

Latin American Science

The future of Latin American science

A year later, the effects of a volcanic eruption still plague Patagonia

A farm runs on homemade biodiesel in Argentina

Zócalo Public Square

How can we fight the rise of deadly superbugs?

Modern Farmer

Colombian coffee at the crossroads

The Specialty Coffee Chronicle

Can the world’s growing appetite for unique coffee save Brazil’s specialty coffee farms?

Christian Science Monitor

São Paulo razes crack cocaine shantytown

Speaking engagements
So you want to be a data journalist?, CUNY Graduate School of Journalism, 2016
Intro to data visualization workshop, Nieman Foundation, 2016
Iberoamerican conference on science journalism, Digital frontiers keynote talk, Mexico, 2015
Power of Narrative conference panel on digital journlism and seminar on Latin American science, Boston University, 2015
Storytelling with Data workshop on data visualization tools, Boston University, 2015
World Conference of Science Journalists panel on Latin American science, Seoul, South Korea, 2015
Ciencia y periodismo (Science and Journalism), Nexos Chile-USA keynote talk, Harvard University D.R.C.L.A.S., 2015
Digital cartography workshop, Nieman Foundation, 2015
What is Data Journalism?, Northeastern University, 2014
What is Science Journalism?, Framingham State University, 2014

Classes taught
Spring 2016
Science and Journalism in Society, Brandeis University
Fall 2015
Media Innovation Studio, Northeastern Journalism School
Spring 2015
StoryLab: Reinventing Magazine Journalism, Northeastern Journalism School
Summer 2014
Foreign Correspondence in the Digital Age, Harvard Extension School

Fellowships & Awards
Knight Science Journalism Fellow, M.I.T., 2013—2014
Ocean Science Fellow, Woods Hole Oceanographic Institution, September, 2014
Information is Beautiful Award, shortlist for best data visualization website,, 2015
Best magazine writing, North American Guild of Beer Writers
Unlocking the Science of Hop Aromas, 1st place, 2015
Stemming the Rise of Barley Disease, 3rd place, 2014
Brewing in Thin Air, 3rd place, 2013