Govert Schilling

When you train a telescope on outer space, you can see luminous galaxies, nebulae, stars, and planets. But if you add all that together, it constitutes only 15 percent of the matter in the universe. Despite decades of research, the nature of the remaining 85 percent is unknown. We call it dark...

Ripples in Spacetime is an engaging account of the international effort to complete Einstein's project, capture his elusive ripples, and launch an era of gravitational-wave astronomy that promises to explain, more vividly than ever before, our universe's structure and origin. The quest for...

An acclaimed science writer tells the story of cosmic projectiles that may be on a collision course with our Earth.

Het grootste deel van alle materie in het heelal is onzichtbaar en niemand weet waar het uit bestaat. Donkere materie is het grootste onopgeloste...