'Why not make it accurate' — Andy Weir on putting the science in sci-fi

Andy Weir is most famous for The Martian, the science-heavy Mars survival story that was made in to a hit film starring Matt Damon, and now he's back now with a new book, Project Hail Mary.

Journalist Jacqueline Maley on motherhood and ethics in her debut and the final in Michael Mohammed Ahmad's trilogy featuring his alter-ego, Bani Adam.