Harriet (Harri) Easterbrook

She/her

No More Mr. Ice Guy

I'm from: Sydney, NSW
Current Location: Hobart, Tasmania
Position: PhD Candidate
Field of research/work: sea ice/oceanography
YTS Years: 2026

Harriet's Notable career moments

  • Dreamed of becoming an astronaut

  • Had terrible science teachers in high school

  • Read Stephen Hawking “Brief History of Time” which restarted my astronaut dream

  • Started engineering and physics at university because I thought that was how you became an astronaut

  • Got a job tours of the night sky at the Sydney Observatory

  • Failed electrical engineering! Realised I didn’t like engineering but loved physics

  • Moved to Canberra to study space and tiny particles

  • Worked researching quantum physics. But felt a lot of climate anxiety and wanted to help our planet

  • Realised climate physics was a thing. Started a 1 year project using satellites to measure how thick Antarctic sea ice is

  • Worked at a wildlife sanctuary

  • Started a 4 year project researching why all that Antarctic sea ice is suddenly disappearing — a mystery that gets me paid to go to university!

About Harriet (Harri) Easterbrook

For as long as I can remember, I have been obsessed with questions at the very edge of our understanding. I’d look up at the night sky and wonder: Are we alone? What actually happens inside a black hole? Why is there something rather than nothing?

I fell in love with the mystery of not knowing, and the thrill of trying to find the answers. That is what drew me to math. I loved it, not because it was easy, but because it felt like a secret code. Think about it: we only knew black holes existed because they popped out of a math equation long before anyone ever actually saw one! That sense of discovery led me straight into studying space.

But somewhere along the way, I had a realisation. Some of the most complex, beautiful, and urgent mysteries aren’t millions of lightyears away in deep space. They are right here, on our own planet. I shifted my focus towards studying the heartbeat of our planet: Antarctica.

Most people picture Antarctica as this frozen, still place at the bottom of the world. But it’s actually one of the most dynamic, restless environments on Earth. It has a literal pulse: a rhythm of growing and shrinking sea ice that keeps our entire global climate stable.  But lately, that pulse has started to skip a beat. And that’s the mystery I’m trying to solve.

In a way, I’ve found myself right back where I started: staring at a massive, beautiful puzzle. Science isn’t a dusty textbook or a list of facts to memorize. It is a creative, messy, deeply human adventure. You don’t have to be a perfect student or a genius to do it. I’m certainly not! You just have to be willing to ask “why?” and brave enough to follow the mystery wherever it takes you.

Harriet's Photo Gallery