As they fly around the moon, the four astronauts of NASA's Artemis II will see views never seen by the human eye. Here's how.

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 ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

Astronomers have observed a white dwarf – a highly compact Earth-sized stellar ember – that is creating a colorful shockwave as it moves through space, leaving them searching for an explanation.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 ...

Every time a coffee mug drops, a satellite orbits or an astronaut floats, we are watching the same phenomenon play out under ...

This year, the clocks go forward on Sunday, March 29, meaning the sun won't set until nearly 8pm - that's only 10 weeks away.

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

Stargazers will in one week have a chance to spot Saturn and the moon sharing a section of the night sky in what's known as a ...

The James Webb Space Telescope is not circling our planet the way most people imagine a satellite does. Instead, NASA parked ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

The Hubble Telescope appears as a tiny silhouette during a perfectly timed solar transit captured from Puerto Rico.