TechnologyRoasting green chillies in the sun could pave way for solar cooking An experiment using solar concentrators, which focus sunlight to a point, to roast green chillies suggests it may be possible to build portable solar cookers News
SpaceWe now know how the mysterious ridges covering Europa’s surface formed Jupiter’s moon Europa is covered in weird pairs of ridges, and they may come from the refreezing of shallow pockets of liquid water hiding all over its icy shell News