- What would happen if we introduced significant amounts of water to Mars? Would we anticipate eventual life? https://www.reddit.com/r/space/comments/6et2v3/what_would_happen_if_we_introduced_significant/ 13 comments space
- What could happen if this comet does hit Mars in 2014 (besides the huge crater)? Altered atmo? Water deposits? Tectonic activity? http://spaceobs.org/en/tag/c2013-a1-siding-spring/ 12 comments askscience
- Venice crash reignites calls for cruise ship ban - Critics say such ships pose a conservation risk to the lagoon city, pollute its waters and mar its beauty. "What happened in the port of Venice is confirmation of what we have been saying for some time" https://www.bbc.com/news/world-europe-48489158 10 comments worldnews
- Scientists have found water-bearing deposits on Mars that are out of step with what was happening elsewhere on the planet, raising the prospect that the sites could have hosted Martian life's last stand. http://news.discovery.com/space/mars-life-trench-clay-110927.html 142 comments science
- A young Venus likely had water for two billion years, making it habitable for longer than Mars! But then something happened that transformed it into today's hellscape - Your Guide to Venus | The Planetary Society https://www.planetary.org/explore/space-topics/venus/venus.html 849 comments space