1 “... very clear that the relatively warm period of the past 11,000 years stand out in striking contrast...”

2 “...This book carries out approximate estimates of the costs of implementing ISRU on the Moon and Mars...”

3 “... in the 20th century, inequality has faded out as an issue. Extensive tables and graphs of data are presented...”

4 “... crew of at least 70 humans. Since then, more than 1,000 studies were carried out on human missions...”

5 “... of at least 70 humans. Since then, more than 1,000 studies have been carried out on human missions to Mars...”