Thinking at cosmic and subatomic scales requires plenty of math—or some visual metaphors.

The finding comes with significant new suggestions about the solar system ...

There are parts of the universe, and of the electromagnetic spectrum, that we’re not covering with our telescopes—but not as ...

In the pursuit of space exploration, humans have broken records that were previously thought impossible. At the same time, terrible accidents have marred the history of space flight, making later ...

Astronomers detected signs of a thin atmosphere around distant object 2002 XV93, surprising scientists who believed it was ...

For many Americans, Memorial Day marks a fun-filled long weekend and the unofficial start of summer. However, Memorial Day was created for a much more solemn purpose: commemorating the U.S. military ...

Astronomers have detected a thin atmosphere around a small icy world beyond Pluto, where gravity should not hold gas for long. The discovery raises a big question for planetary scientists. A world ...