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

Earth's orbit is getting dangerously crowded with space debris, raising the risk of satellite collisions and global ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

A new analysis suggests modern satellite networks could suffer catastrophic collisions within days of losing control during a major solar storm. The phrase “House of Cards” is often associated today ...

Sunita Williams, retired astronaut, reveals surprising sights from space, including numerous satellites and rare lightning ...

Imagine looking at the Moon and knowing your name is actually travelling around it. NASA is giving everyone a rare chance to ...

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

Scientists have developed a way to generate tiny amounts of solar energy at night. It’s true potential could be in space.

Buzzwords such as the low-altitude economy, brain-computer interfaces and embodied intelligence, which have been written into ...

Scientists have developed an autophage engine that burns its own structure to generate thrust. This innovation drastically reduces spacecraft weight and enables affordable high-energy missions across ...

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

Learn more about the number of satellites circling Earth and the multiple ways they are changing the sky.