May 1, 2016
Space agencies have paid too little attention to the most Earth-like planet in our solar system
Credit: Gloria Pizzilli
Both Mars and Venus have been objects of scientific and popular speculation since at least the beginning of the 20th century, and since the 1960s spacefaring nations have been sending robotic probes to explore both worlds. Mars has gotten far more attention, however. Since 2002 no fewer than two Mars probes have been actively gathering data during any given year. Last year there were seven.
This is understandable. Mars is far more hospitable than Venus, where surface temperatures reach nearly 480 degrees Celsius, surface pressure is 92 times that of Earth and the planet is permanently shrouded by thick clouds of sulfuric acid. We have direct evidence that water once flowed and pooled on Mars. It cannot be ruled out that life once existed…
View original post 551 more words