NASA researchers have proposed a 2025 mission to Neptune's mysterious moon Triton, which may host an ocean of liquid water beneath its icy crust. The so-called Trident mission — named after Neptune's spear in Roman mythology — is one of four proposals competing to be realised under NASA's 'Discovery Program'. NASA researchers have proposed a 2025 mission to Neptune's mysterious moon Triton, pictured, which may host an ocean of liquid water beneath its icy crustOTHER DISCOVERY PROGRAMME CONTENDERS Alongside Trident, three missions are competing to be realised by NASA. 'As we said to NASA in our mission proposal, Triton isn't just a key to solar system science — it's a whole key-ring.' 'After 13 years of flying through the solar system, we can confidently skim the upper edge of Triton's atmosphere — which is pretty mind-boggling.'

Source: Daily Mail June 22, 2020 12:16 UTC