Emily Chung

Science and Technology Writer

Emily Chung covers science and technology for CBC News. She has previously worked as a digital journalist for CBC Ottawa and as an occasional producer at CBC's Quirks & Quarks. She has a PhD in chemistry.

Latest from Emily Chung

Giant predatory worm's ancient fossil burrows discovered

Millions of years ago, giant worms as long as an adult human with sharp, slicing jaws were terrorizing the ocean, as they do today, recently discovered fossils suggest.

Sabre-toothed tiger cub fossils may reveal family secrets

An apparent family of sabre-toothed cats with an unusual genetic quirk is providing Canadian researchers new hints about how the predators lived tens of thousands of years ago.

COVID-19 infection vs. vaccination: Which is better for immunity?

Both a COVID-19 infection and a vaccination are expected to train your immune system to protect you from getting sick with it in the future. But how are they different? Medical experts think vaccination is safer and better protection than a natural infection.

How to make technology greener? End planned obsolescence

Many of us are frustrated by how soon new high-tech devices like smartphones break or just don’t work well anymore, forcing us to replace them — a concept often called “planned obsolescence.” That cycle is also unsustainable, given the limited resources on Earth, advocates say. Here’s a closer look at the problem and how to fix it.

Can mRNA vaccines alter your DNA? More of your COVID-19 vaccine questions answered

As the first shots of coronavirus vaccines are delivered in Canada, CBC News talks to the experts to answer your questions about this kind of vaccine and the clinical trials that got them to this point, including: Is the Pfizer-BioNTech vaccine safe for children and pregnant women?

Once someone is vaccinated, do they still have to wear a mask? Your COVID-19 vaccine questions answered

Now that a COVID-19 vaccine has been approved in Canada and the first shots have been given, lots of you have questions about vaccines. We talked to the experts to get you some answers.

What cities can learn from the biggest battery-powered electric bus fleet in North America

Transit systems are going electric to prepare for a low-carbon future. But it’s not as easy as you might think. Here’s a closer look at what can be learned from a Canadian pioneer in electric transit, Toronto, which has the largest battery-powered electric bus fleet in North America.

Parcel delivery companies are trading trucks for bikes in some Canadian cities. Here's why

The Black Friday, Cyber Monday, pre-Christmas pandemic online shopping frenzy calls for huge fleets of trucks and vans to deliver those gadgets and gifts. But those road-clogging, polluting vehicles are starting to give way to a greener, more efficient option in some Canadian cities: e-cargo bikes and trikes.

Moderna, Pfizer-BioNTech vaccines have been approved in Canada. Here's what you need to know about them

Moderna's vaccine is the second to be approved in Canada. You might have some questions. How effective are vaccines? What are the side effects? What about allergic reactions? And when can you expect to get your shot? Here are the answers.

Engineering professor who designs gels to mimic human tissues wins Canada's top science prize

A University of Toronto chemical engineering professor has won the $1 million Gerhard Herzberg Canada Gold Medal, the country’s top science prize, for her work designing gels that mimic human tissues.

In the Arctic, 'everything is changing,' massive animal tracking study finds

Animals across the Arctic are changing where and when they breed, migrate and forage in response to climate change, says a new study unveiling the massive scale of the change. The changes mean humans in the Arctic may have to adapt and adjust everything from hunting seasons to conservation to land use, scientists say.

Polypropylene is now recommended in masks. Should I be concerned? Your mask questions answered

How close can you get to others when you're both wearing masks? Is it your right not to wear one? Can you wear a mask under your nose? Are frozen masks less effective? And now that polypropylene is recommended in masks, should I be worried about breathing it in? Here are the answers to your latest questions on masks and COVID-19.

Is more testing behind the record numbers of COVID-19 cases in Canada? Your testing questions answered

Are the record case counts in many provinces caused by increased testing? How long are test samples good for? Why can’t you provide a stool sample instead of getting a nose swab? Are pharmacy tests accurate? Here are the answers to some of your COVID-19 testing questions.

A closer look at Canada's homegrown COVID-19 vaccine candidates

There are at least 11 teams across Canada racing to develop a COVID-19 vaccine, including two in clinical trials and others scheduled to start soon. Here’s a closer look at the scientific teams, their technologies and where they’re at.

Amur tiger hugging a tree and other images from this year's Wildlife Photographer of the Year competition

A photograph of a rare tiger in a forest was the winning image in this year’s international Wildlife Photographer of the Year competition. Here’s a look at the international winners, the Canadians recognized by the 2020 competition, and information on where to see the photos.