This updated catalog of trans-Neptunian objects and the methods used to find them could aid in future searches for undiscovered planets in the far reaches of the solar system. Using data from the Dark Energy Survey (DES), researchers have found more than 300 trans-Neptunian objects (TNOs), minor planets located in […]

The rotation of the QCD axion (black ball) produces an excess of matter (colored balls) over antimatter, allowing galaxies and human beings to exist. (Graphic: Harigaya and Co Photo: NASA) A new study, conducted to better understand the origin of the universe, has provided insight into some of the most […]

In string theory, tiny bits of string replace traditional subatomic particles (Image: © Michael Taylor | shutterstock) Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space Radio, and author of “Your Place in the Universe.” Sutter contributed this article to’s Expert Voices: Op-Ed & Insights.  […]

A look into the interior of the Sun and a more evolved giant star. Credit: MPS / Aalto University / By combining modern data analysis techniques with stellar structure modeling for main-sequence and giant stars, researchers shed new light on stellar dynamos. In their interiors, stars are structured in […]

An artist’s interpretation of the water-rich atmosphere of K2-18b. (Image credit: Alex Boersma) Three teams of astronomers have been fascinated by an alien world known as K2-18b. But what’s all the fuss about? In September, two teams announced that they had found signs of liquid water in the planet’s atmosphere — a landmark discovery […]