Ever wondered how water first arrived on our planet? Well, it turns out the mystery could finally have been solved. Researchers have undertaken detailed analysis of asteroids and the findings could change the way the scientific community think about origins of water on our planet. Experts at the University of Arizona's Lunar and Planetary Laboratory (LPL) have discovered salt crystals on samples recovered from space. As their findings state, these crystals could only have formed with the presence of water. Sign up to our free Indy100 weekly newsletter The research was undertaken on samples of the asteroid Itokawa in 2005 by the Japanese Hayabusa mission. It suggests that S-type asteroids could be home to more water than previously thought. The new findings led some scientists to claim that water is likely to have arrived on asteroids when our planet was first being formed. The senior’s author Tom Zega said: "The grains look exactly like what you would see if you took table salt at home and placed it under an electron microscope. "They're these nice, square crystals. It was funny, too, because we had many spirited group meeting conversations about them, because it was just so unreal. Zega added: "It has long been thought that ordinary chondrites are an unlikely source of water on Earth. Our discovery of sodium chloride tells us this asteroid population could harbour much more water than we thought." Itokawa is a S-type asteroid, and it’s thought that temperatures on their surfaces were too high for water to form. Shaofan Che, who is the lead study author, said: "In other words, the water here on Earth had to be delivered from the outer reaches of the solar nebula, where temperatures were much colder and allowed water to exist, most likely in the form of ice. "The most likely scenario is that comets or another type of asteroid known as C-type asteroids, which resided farther out in the solar nebula, migrated inward and delivered their watery cargo by impacting the young Earth." Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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Taoiseach Leo Varadkar has said he does not think the Irish government would offer condolences to Russia in the event of Vladimir Putin’s death. Mr Varadkar was responding to a question relating to Ireland’s historical foreign policy. He said he did not believe an Irish delegation would be present at the Russian president’s funeral. The hypothetical situation relates to events almost 80 years ago. The Irish government adhered to a strict policy of neutrality throughout the Second World War. However, then-taoiseach and minister for external affairs Eamon de Valera sparked outrage among the international community when he expressed condolences to Germany’s Irish minister Eduard Hempel following Adolf Hitler’s death by suicide in 1945. The event caused significant reputational damage to Mr de Valera and the state, and is regarded as an important moment in the history of Irish neutrality. I wouldn’t imagine we’d be represented at the funeral Taoiseach Leo Varadkar The diplomatic conundrum was dragged into the 21st century this week at a post-Cabinet briefing with Mr Varadkar. While Ireland insists it continues to employ a policy of neutrality, senior government ministers say this relates to being militarily neutral rather than being politically neutral. Last week, Mr Varadkar pledged to stand with Ukraine for as long as it takes when he visited Ukrainian President Volodymyr Zelensky in Kyiv. He also announced millions of euro in additional funding for humanitarian aid to Ukraine. Following the trip, the taoiseach was questioned about Mr de Valera’s actions following the death of Hitler. Asked by reporters if Ireland would offer a similar condolence to Russia in the event of Mr Putin’s death, Mr Varadkar said: “I don’t think so.” Briefly pausing to consider the theoretical event, he added: “It’s a good question, I hadn’t thought of it before.” Mr Varadkar, who was banned from travelling to Russia last year, concluded: “I wouldn’t imagine we’d be represented at the funeral.” In November, the Kremlin said it was placing 52 “key representatives” from Ireland on a sanctions list for expressing what it claimed was Russophobic sentiment. Mr Varadkar was among the officials subjected to the ban by Russia. The Russian embassy in Dublin has been approached for comment. Read More Angry Russia refuses to speak at UN meeting on its attacks on Ukraine's key port city of Odesa. Putin ‘looked paralyzed and unable to act’ as Wagner coup unfolded Why are Wagner mercenaries in Belarus – and would they try to invade Poland? Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live

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