Dragonfly could explore Titan, one of Saturn’s moons NASA
NASA has selected two finalists for its New Frontiers programme: a mission to bring back bits of a comet, and a spacecraft that will land on the surface of Saturn鈥檚 moon Titan.
Each of the teams will receive $4 million to continue developing its concept and working out any kinks. In July 2019, NASA will choose a single mission to launch in 2025. The final winner will receive $850 million and a rocket ride to its chosen destination.
The two finalists, called Comet Astrobiology Exploration Sample Return (CAESAR) and Dragonfly, were selected from a set of 12 proposals submitted in April. Runners-up include a mission to collect samples from the moon, a probe for Saturn鈥檚 atmosphere, and missions to Venus and Saturn’s moon Enceladus.
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CAESAR aims to send a craft to comet 67P/Churyumov-Gerasimenko – the same one that the Rosetta spacecraft and Philae lander visited in 2014聽– and bring back 100 grams of rock and ice.
CAESAR would return to comet 67P NASA
The researchers chose a comet we鈥檝e already visited because it鈥檚 easier to prepare for a terrain that鈥檚 already been mapped. 鈥淲e can design for specific conditions that we know to exist, and what that does is it dramatically increases the chances of success,鈥 , the mission鈥檚 principle investigator, said at a press conference yesterday.
Squyres said he hopes that CAESAR will help us learn how comet 67P formed and thus about conditions in the early solar system – and maybe even how similar comets may have brought the ingredients for life to Earth.
Space drone
Dragonfly is a concept for a drone-like spacecraft to land on the surface of Saturn鈥檚 moon Titan. Its aim is to examine the hazy world鈥檚 habitability and look for prebiotic chemistry there – molecules that are the precursors to the evolution of life. It will be able to fly around Titan so that it can land at dozens of different spots and test surface and atmospheric compositions.
Titan鈥檚 thick atmosphere, rivers and lakes of liquid methane聽make it one of the most promising spots in the solar system for life. If Dragonfly is selected, its principle investigator said 鈥渨e can evaluate how far pre-biotic chemistry has progressed.鈥
Two other proposals, one to land on Venus and one to look for signs of life on Saturn鈥檚 moon Enceladus, were deemed too difficult to accomplish with today鈥檚 technology, but have still received some funding to develop new technologies that might make them more feasible in the future.
Read more: Titan鈥檚 conditions could be just right to power US-sized colony
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