Space & Astronomy

The Space Shuttle Disasters: How Challenger and Columbia Were Lost and What They Taught Us. The Space Shuttle was one of the most ambitious engineering projects of the twentieth century. Designed to make human spaceflight more reusable and routine, the Shuttle became a symbol of technological achievement. Over its three-decade program, NASA’s orbiters carried astronauts into space, launched satellites, conducted …

Introduction The Complete Guide to the Universe: For thousands of years, humans have looked up at the night sky and wondered what lies beyond the stars. Ancient civilizations created myths to explain the heavens, while early astronomers carefully mapped the movements of celestial bodies. Today, powerful telescopes, robotic spacecraft, and advanced scientific theories have transformed those early questions into one …

Introduction The History of Moon Exploration. For thousands of years, the Moon was an object of observation, mythology and scientific curiosity. Humans could study its changing phases and movements, but the lunar surface remained completely inaccessible. That changed in the second half of the 20th century. Beginning with robotic spacecraft in the late 1950s, humanity gradually transformed the Moon from …

Introduction Did Ancient Civilizations Believe in Life Beyond Earth? For as long as humans have looked at the stars, they have asked one profound question: Are we alone in the universe? Today, scientists investigate this question using powerful space telescopes, robotic spacecraft, radio observatories and increasingly sophisticated computer systems. Astronomers have discovered thousands of planets orbiting stars beyond our Sun, …