Space-based solar power. Illustration of satellites harvesting energy from sunlight and beaming it down to Earth, perhaps via microwaves. Such satellites would likely be in highly elliptical orbits, ensuring that they stayed above the same hemisphere...

Space-based solar power. Illustration of satellites harvesting energy from sunlight and beaming it down to Earth, perhaps via microwaves. Such satellites would likely be in highly elliptical orbits, ensuring that they stayed above the same hemisphere...

From a NOIRLab press releases, for which this image was commissioned: 'Astronomers studying a powerful gamma-ray burst (GRB) with the Gemini South telescope, operated by NSF’s NOIRLab, may have detected a never-before-seen way to destroy a star. Un...

Artwork of an active galactic nucleus, or AGN. Many, perhaps most large galaxies, are thought to harbour supermassive black holes in their central regions. These enormous gravitational powerhouses can weigh anything from a few hundred thousand to sev...

... asteroids in the asteroid belt between Mars and Jupiter. The spacecraft has a distinctive five-panel solar array, as well as power and propulsion systems to travel to, and orbit, the asteroid. The mission plans to launch in October 2023 and arrive at ...

... asteroids in the asteroid belt between Mars and Jupiter. The spacecraft has a distinctive five-panel solar array, as well as power and propulsion systems to travel to, and orbit, the asteroid. The mission plans to launch in October 2023 and arrive at ...

... re than 2000 sq km (830 sq miles), was equivalent to the detonation of a 12 megaton nuclear explosion - around 800 times the power of the bomb dropped on Hiroshima in August 1945. ...

To harness much more of the Sun's abundant power, our descendants have encased the star in a cage of billions of moving parts - a Dyson swarm. This energy can then be transmitted to wherever it is needed in the Solar System....

To harness much more of the Sun's abundant power, our descendants have encased the star in a cage of billions of moving parts - a Dyson swarm. This energy can then be transmitted to wherever it is needed in the Solar System....