TOP CNET NEWS STORIES OF THE WEEK

This weekly digest is comprised of hand-picked stories CNET news editors have determined to be the biggest stories of the week. Get all the latest tech news at http://www.cnet.com/news
  1. Your refusal to join Twitter is taking a toll
    It's popular with entertainers, politicos and hipsters, but Twitter is having a hard time getting regular people to join. That's a big problem. http://cnet.co/1oy3RoF
  2. Einstein nailed it! Gravitational waves do exist
    Scientists prove Einstein's theory after observing the collision of black holes. http://cnet.co/241BJux
  3. How to keep your geek happy on Valentine's
    Smitten with a geek? Take care how you treat us. We love as fiercely as Vulcans but can just as easily turn into rabid Ewoks. http://cnet.co/1R0pOWG
  4. The strange journey of a Martian-in-training
    Physicist and comedian Josh Richards is ready and willing to die on Mars. But first he has to survive a see-through, mocked-up habitat in Sydney. http://cnet.co/1Q4i34V
  5. Cloud-savvy Robin phone is set to fly. Good luck catching one
    Kickstarter darling Nextbit, which boasts a phone with massive cloud storage, will launch its online store with just 3,000 to 6,000 phones. http://cnet.co/1o47u5c