Round-up of this week’s news: spinal cord implants used to treat paralysis; children’s climate lawsuit to progress; and scientist to feature on new £50 note. Round up of this weeks news: Beplicolombo heads to Mercury; radiotherapy used to treat prostate cancer; and wooly mammoth and rhino bones found by road workers. This week: Soyuz spacecraft failure; fracking resumes in the UK; and mice with two mothers. I,Science caught up with Helen Sharman, the first Briton in space.