No High-Rise Left Standing from Early Mars or Earth
<p>The latest analysis of data from NASA’s Mars Reconnaissance Orbiter (MRO) <a href="https://www.nasa.gov/feature/jpl/nasa-s-mro-finds-water-flowed-on-mars-longer-than-previously-thought" rel="noopener ugc nofollow" target="_blank">indicates</a> that Mars was rippled with rivers and ponds for the first half of its history. Based on the analogy with Earth, it is conventionally expected that Mars developed microbial life when it lost its atmosphere. In that case, the water on its surface evaporated and left a frozen desert.</p>
<p>But if the development of intelligent life on Mars was accelerated by merely a factor of two relative to Earth, there could have been an advanced technological civilization on Mars a few billion years before humans appeared on Earth. Can we easily rule out this possibility?</p>
<p><a href="https://avi-loeb.medium.com/no-high-rise-left-standing-from-early-mars-or-earth-9376389ae070"><strong>Read More</strong></a></p>