The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

Darryl Z. Seligman is an Assistant Professor of Physics and Astronomy at Michigan State University.

Comets, unusual rocks, bright stars, and a volcanic moon. Enjoy this week's selection of the wonders of our solar system and galaxy. What do you see? A fossilized head of a fish gasping for air in a ...

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

Read all of Slate’s stories about the 25 Greatest Picture Books of the Past 25 Years. On Oct. 8, 2010, the New York Times ran a story on its front page: “Picture Books No Longer a Staple for Children.

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Titan, the second largest moon in the Solar System—indeed, it is even larger than the planet Mercury—draws attention not only because of its size, but also due to its dense, hazy atmosphere, an ...

Yeimy J. Rivera receives funding from NASA's Parker Solar Probe project through the SAO/SWEAP subcontract 975569. Tatiana Niembro receives funding from NASA's Parker Solar Probe project through the ...