Subscribe for full online access and get...
- Full, instant access to all stories
- Customised email alerts straight to your inbox
- Monthly print magazine
NASA's jet propulsion laboratory is developing a robotic impact mole to take soil samples from below the surface of Mars. Powered by surface mounted solar panels, engineers expect the mole to be able to burrow 10m/d looking for Martian aquifers and tunnelling into ice caps to study climate history.