With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

An advanced imaging system developed at the University of Arizona boasts a shape-shifting mirror that delivers observing ...

Another finding was how dramatically the planets varied in brightness over just three years. The team discovered that PDS 70 ...

Astronomers using a cutting-edge adaptive optics instrument, MagAO-X, have captured unprecedented images of young planets orbiting the star PDS 70. These "baby planets" are surrounded by dust rings ...

Astronomers have long believed that the swirling disks of gas and dust that form planets around young stars last only about ...

After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The ...

Once its rings vanish from sight in March 2025, Saturn will look like a pale yellow sphere through most telescopes.

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

In 11 Questions, The A.V. Club asks interesting people 11 interesting questions—and then asks them to suggest one for our ...

It may look beautiful but what it reveals is an alarming picture of a heating planet. The graphic shows the increase in daily global temperatures between 1940 and the end of 2024 compared to the ...

A new book shows how residents of wealthier nations are jeopardizing the health and safety of other parts of the planet.