A spectacular reference book for children ages 7-9 that explores our sun and the planets that surround it

A guided journey through the inner workings of Earth, the cloaked mysteries of other planets in our solar system, and beyond.

Albert Einstein knew already in the early 1900s, when he first published his famous paper about the constancy of the speed of light, that not only did this constancy imply that mass contains energy (E = m c squared), but that faster-than-light motion could lead to paradoxes — some that seemed to involve backwards time travel.

"With wit and brio, Frank separates current nonsense about aliens from the serious and fascinating search for extraterrestrial life." —Carlo Rovelli, New York Times bestselling author of Seven Brief Lessons on Physics

This accessible and entertaining biography chronicles the life and triumphs of astronomer Jan Hendrik Oort, who helped lay the foundations of modern astronomy in the 20th century. The book puts into context some of Oort's most significant achievements, including his discovery that the Milky Way rotates, as well as his famous hypothesis that our Solar System is surrounded by a reservoir of comets — now simply known as the Oort Cloud.

An exciting new title in the vein of Hidden Figures, which tells the inspiring stories of long-overlooked women physicists and astronomers who discovered the fundamental rules of the universe and reshaped the rules of society.

Discover the Secret of the Universe Among the Stars

Neutrinos continue to be the most mysterious and, arguably, the most fascinating particles of the Standard Model as their intrinsic properties such as absolute mass scale and CP properties are unknown. The open question of the absolute neutrino mass scale will be addressed with unprecedented accuracy by the Karlsruhe Tritium Neutrino (KATRIN) experiment, currently under construction.

The idea ofthisInternational Symposium on Basic Environmental Prob- lems of Man in Space came about two years ago from Professor von Klfrmlfn, President of the International Academy of Astronautics, and Dr. Malina, permanent representative of the International Astronautical Federation to Unesco. They soon talked other people into their plans, and a feeling diffused far and wide that such a symposium would serve to stimulate educational and scientific activity and progress, to encourage international cooperation in this particular problern area and to further advancement of research in the basic aspects of the many problems at hand. It was then learned with great satisfaction that Unesco became attracted by the objectives of the symposium, which are in harmony with the principal features of this organisation 1 s program in the natural scienc- es. Within the proposed budget allocations to various projects for 1961/ 62 Unesco decided to assist the International Astronautical Federation in preparing a Study Group to determlne the desirability and feasibility of holding a symposium on the problems of man in space.