On Downstream: Mystery on Mars and French cyberattacks

Al Jazeera Science and Technology Editor Tarek Bazley looks at the week’s top science and technology stories.

This week: a mystery is solved on Mars, France hits back at cybe-attacks, a new variety of salt-resistant potato that could feed the world, the cost of desalination and a new stem cell procedure that could help paralyzed patients.

Source: Al Jazeera