In the Spring of 1961 President John Kennedy challenged his country to place humans on the moon and return them to Earth by the end of the decade. ...

This book was written to be intelligible to general readers while also containing facts and figures useful to amateur astronomers at the time of it...

At the end of World War II, the U.S. government transferred Dr. Wernher von Braun and his team of scientists from Germany to America. No one could ...

It has been the aim of the authors to give in this book a brief, simple, and accurate account of the heavens as they are known to astronomers of th...

Not every rock is of an earthly nature. Meteorites are our windows to other worlds, affording us rare glimpses of our own solar system when it was ...

The N1 was the booster rocket for the Soviet manned moon program and was thus the direct counterpart of the Saturn V, the rocket that took American...

The asteroids are a series of small, heavenly bodies whose orbits fall mainly between those of Mars and Jupiter. The largest asteroid is 620 miles ...

A black hole is a point of extreme mass in spacetime with a radius, or event horizon, inside of which all electromagnetic radiation (including ligh...

It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit)....

Cosmology deals with the nature of the universe. It can be broadly divided into three great ages. The first began in the 6th century BC with the Py...

Pulsars are stars, a significant part of whose observed energy output is not continuous but is emitted as distinct flashes or pulses of electromagn...

In 2015 author Robert Godwin revealed the story of William Leitch an almost unknown Scottish/Canadian scientist who in 1861 suggested that rockets ...