Weather Blog Blast From the Past: A Modern Lake in an Ancient Crater Famously visible from space, ring-shaped Manicouagan Lake was filled at the dawn of the Space Age when Canada dammed a river to flood a Triassic-aged impact crater. Read More… About Author OTW Observer See author's posts Continue Reading Previous: ’I’m a doctor – there’s 2 reasons why heatwaves feel more uncomfortable in the UK’Next: London weather expert warns of further incoming heatwaves new as map shows 31C return Related Stories Buccaneer Archipelago Weather Blog Buccaneer Archipelago July 26, 2025 More Lava Fills Kilauea Crater Weather Blog More Lava Fills Kilauea Crater July 24, 2025 A BIG Moment for Apollo 11 Weather Blog A BIG Moment for Apollo 11 July 24, 2025