space exploration

The development of a set of testing protocols for perovskite solar cells intended for use outside Earth’s atmosphere could lead to the devices being installed permanently, and even manufactured, on the moon.

As part of a project headed by the European Space Agency investigating materials for long-term missions, scientists in Estonia are investigating a tiny iron-based crystal as a potential solar cell material. So far, the material has not achieved the sort of efficiency that would spark a lot of interest. These researchers, however, are interested in it for a different reason: Beyond planet Earth, the material is abundant enough that it could eventually be manufactured on the Moon or even Mars.

Researchers have created a device to produce electricity and steam at the same time. The system is said to offer 85.1% efficiency and deliver steam at up to 248 degrees Celsius. The converter combines III–V, triple-junction solar cells and a high-efficiency solar thermal system based on parabolic trough collectors.

A satellite launched from Florida last month has successfully unfurled its ‘solar sail’ in an early test of a new type of sunlight powered propulsion. The Planetary Society aims to demonstrate the technology as a viable way to propel small satellites, greatly lowering the cost of space exploration.