How a medieval Oxford friar used light and color to find out what stars and planets are made of

During the 1240s, Richard Fishacre, a Dominican friar at Oxford University, used his knowledge of light and color to show ...
CNN

Scientists have fiercely debated the existence of ‘Planet 9’ for a decade. Some say evidence is piling up

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Our solar system ...
EurekAlert!

‘Pinballs in a cosmic arcade’: New study suggests how wide-orbit planets form, supporting existence of Planet Nine

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and planetary masses silently orbit their stars — sometimes thousands of astronomical ...

A Planet Nine beyond Neptune? The hunt for the solar system’s hidden worlds

Nearly a century after Pluto’s discovery, astronomers are still searching for mysterious planets beyond Neptune - including a ...
Astronomy

Have astronomers found Planet Nine?

Astronomers have a potential Planet Nine candidate, detected via infrared radiation. This candidate's orbit is very different from what's predicted for Planet Nine. The candidate may be a false ...
Modern Engineering Marvels on MSN

Planet Y May Be Closer Than Planet Nine, Study Suggests

Might the solar system harbor not just one, but two unknown planets? A fresh study of the Kuiper Belt’s structure has revived that far-out question, pointing to a possible Earth-sized world-nicknamed ...

How a medieval Oxford friar used light and colour to find out what stars and planets are made of

Richard Fishacre challenged the scientific orthodoxy of his day, and contemporary astrophysics has vindicated his position.