Artwork of an orbital ring around the Earth. This is a structure that completely encircles the entire planet in a closed loop, composed of inner and outer loops. They can surround the Earth (or any other planetary body) at any height and inclination. The inner segment moves slightly faster than orbi ...Read more.

Artwork of an orbital ring around the Earth. This is a structure that completely encircles the entire planet in a closed loop, composed of inner and outer loops. They can surround the Earth (or any other planetary body) at any height and inclination. The inner segment moves slightly faster than orbi ...Read more.

Artwork of an orbital ring around the Earth. This is a structure that completely encircles the entire planet in a closed loop, composed of inner and outer loops. They can surround the Earth (or any other planetary body) at any height and inclination. The inner segment moves slightly faster than orbi ...Read more.

Astronauts on Orbital Ring - V1 ...Read more.

Artwork of an orbital ring around the Earth. This is a structure that completely encircles the entire planet in a closed loop, composed of inner and outer loops. They can surround the Earth (or any other planetary body) at any height and inclination. The inner segment moves slightly faster than orbi ...Read more.

Artwork of an orbital ring around the Earth. This is a structure that completely encircles the entire planet in a closed loop, composed of inner and outer loops. They can surround the Earth (or any other planetary body) at any height and inclination. The inner segment moves slightly faster than orbi ...Read more.

Artwork of a galaxy surrounded by stellar streams. Streams are elongated, looping structures made from stars and gas. They result when a smaller galaxy passes a more massive one and becomes torn apart by tidal forces. ...Read more.

Might this be the future of tourism? Far above the Earth - or indeed, anywhere in the Solar System - an orbiting hotel could be a recreation place for citizens looking to get away from it all. ...Read more.

Asteroid impact. Illustration of a large asteroid colliding with Earth on the Yucatan Peninsula in Mexico. This impact is believed to have led to the death of the dinosaurs some 65 million years ago. The impact formed the Chicxulub crater, which is around 200 kilometres wide. The impact would have t ...Read more.

Conceptual illustration symbolizing the exploration of the Red Planet, Mars. ...Read more.

Conceptual illustration symbolizing the exploration of the Red Planet, Mars. ...Read more.

When a planet is in a sufficiently close orbit around its parent star, the planet can become tidally 'locked', so that it always presents the same face to its star. The Moon is tidally locked to the Earth, for example. Astronomers have discovered an entire slew of such planets around nearby stars, a ...Read more.

When a planet is in a sufficiently close orbit around its parent star, the planet can become tidally 'locked', so that it always presents the same face to its star. The Moon is tidally locked to the Earth, for example. Astronomers have discovered an entire slew of such planets around nearby stars, a ...Read more.

When a planet is in a sufficiently close orbit around its parent star, the planet can become tidally 'locked', so that it always presents the same face to its star. The Moon is tidally locked to the Earth, for example. Astronomers have discovered an entire slew of such planets around nearby stars, a ...Read more.

When a planet is in a sufficiently close orbit around its parent star, the planet can become tidally 'locked', so that it always presents the same face to its star. The Moon is tidally locked to the Earth, for example. Astronomers have discovered an entire slew of such planets around nearby stars, a ...Read more.