In 1820, French astronomer Alexis Bouvard noticed something strange. The gravity of the inner planets couldn't account for the orbital movement of the outermost planet, Uranus. His hypothesis: There must be a massive object influencing it. That eventually led mathematicians to correctly calculate the location of our eighth planet, Neptune. This discovery fueled a mad hunt to discover more planets using this method.
Unfortunately, since then, no major planet in our solar system has been found. But in the past few decades, modern telescopes have discovered thousands of objects beyond Neptune, and their orbits have made some scientists think that a massive ninth planet might actually exist. This mysterious planet is often referred to as Planet Nine and its existence would, in fact, make our solar system similar to the majority of other planetary systems we have observed so far in other parts of the universe.
In this exciting talk, astrophysicist Dr. Malena Rice takes us to the edge of our solar system, unfolding the anomalies we observe and sharing what we know so far about this mysterious, elusive, planet.
Why do we think this planet should be there? And If Planet Nine exists, why has no one seen it?
Read more
For centuries, we have been looking up to the sky to understand the mysteries that surround us. The sky might hold the answers to some of our deepest questions such as where we came from. But what do we know so far?
One Garden is a community for the curious, a place where learning is joyful. Together, we learn from world experts through weekly live talks and by asking them the questions we are most curious about. Our on demand library is yours to explore at your leisure.
With our monthly membership we aim to give anyone, anywhere, access to the knowledge, ideas and people who have shaped — and continue to shape — our understanding of the world.
A membership with One Garden will give you unlimited access to all our talks, live and on-demand.
For £9.99/month, One Garden will give you access to the brightest minds of our generation. Ask them your questions during a live talk, or sit back and relax.
Yes of course. We invite you to enjoy a 14 day free trial, and if you cancel any time during this period then you will not be enrolled into the monthly plan and will not be charged.
You can cancel online, anytime, in your account with just a couple of clicks.
We find the most passionate experts and academics from across the globe. All of our talks are designed to be accessible to anyone, no prior knowledge required, and our speakers (or Fellows as we call them!) are skilled at delivering fascinating, captivating talks for all levels.
You'll have the chance to ask questions in real times during lives via our bespoke platform.