For decades, scientists believed that a vast stretch of Earth’s early history unfolded under stable and uneventful conditions ...

From the deck of a ship or the window of a plane, it feels obvious that “down” points toward Earth and “up” points toward the ...

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

In the bigger picture, "down" could be defined as being below the plane of the solar system, which is known as the ecliptic.

Saturn will appear alongside the moon in Nevada skies during a planetary conjunction this January. Here’s how to spot it and ...

Solve the math puzzle from our February 2026 issue, where we plan a return passage for a robotic explorer that doesn’t want ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

A new study suggests lunar soil contains elements that solar wind transported to the moon from Earth’s atmosphere, solving a ...

Our bones did not begin deep inside the body. They started in the skin, not long after the first complex animals took shape.

Dark stars are some of the most exciting astrophysical objects to possibly exist, as their study would allow for a ...

As Hurricane Helene battered Florida, NASA’s AWE mission detected atmospheric waves, hinting that extreme storms influence ...

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...