NASA announces discovery of Earth-like planet with earth similarity index 0.98
Briefing materials:<p><a href="http://www.nasa.gov/keplerbriefing0723" rel="nofollow">http://www.nasa.gov/keplerbriefing0723</a><p>(<a href="https://news.ycombinator.com/item?id=9936612" rel="nofollow">https://news.ycombinator.com/item?id=9936612</a>)