The Late Heavy Bombardment may have stopped on Mars 4.48 billion years ago, allowing it to become more favourable to life earlier than previously suggested
Source:
https://www.newscientist.com/article/2207355-mars-meteorite-assault-stopped-500-million-years-earlier-than-thought/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home