Don Pettit became septuagenarian hurtling towards Earth after seven-month mission at International Space Station Cake, gifts and a low-key family celebration may be how many senior citizens celebrate their 70th birthday. But Nasa’s oldest serving astronaut, Don Pettit, became a septuagenarian while hurtling towards Earth in a spacecraft to wrap...
‘It blew us away’: how an asteroid may have delivered the vital ingredients for life on Earth
Extraterrestrial rocks, recently delivered by a space probe, could answer the big questions about alien lifeforms and human existence Several billion years ago, at the dawn of the solar system, a wet, salty world circled our sun. Then it collided, catastrophically, with another object and shattered into pieces. One of...