Its first-stage booster, on its 10th flight, also successfully returned to Earth, which SpaceX said was the 400th landing of an orbital class rocket ... upcoming flights. Science News // 23 ...

Looking to get rich? Try welding. For the third consecutive year, positions in the skilled trades are the hardest to fill, according to a Manpower Group survey of American employers. This shortage ...

There's a 26 per cent annual chance that space rocket junk will re-enter the atmosphere and pass through a busy flight area, according to a recent study. While the chance of debris hitting an aircraft ...