posted 07-12-2013 10:27 AM               

The steel penetrator was fired at a 10-tonne cube of ice to simulate the surface of Jupiter's moon Europa.

It hit the block at a speed of 340m/s and decelerated rapidly, but its structure remained intact, as did its interior components.

Researchers say the penetrator would be a robust and inexpensive way to land instruments on other worlds.

These might be seismometers to study the interior of Mars, or a miniature organic chemistry laboratory to check for microbial activity on icy Jovian satellites.