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Originally posted by reject
Sometimes it bursts through the frozen walls of impact craters, causing huge cascades of rushing water. NASA says as much.
Originally posted by rhw007
And the "point" was that instead of "confirming" this WAS water/ice with NO or LOW "salts" they choose NOT to sample it when it wasn't there the SOLs before.
Originally posted by Phage
Originally posted by rhw007
And the "point" was that instead of "confirming" this WAS water/ice with NO or LOW "salts" they choose NOT to sample it when it wasn't there the SOLs before.
Still missing your point.
- How could they sample something that "wasn't there"?
- They did sample, just as they planned to, and found...water.
- The daytime temperatures are around -25c. How can there be liquid water at this site?
What is the actual full size of the Phoenix lander/spacecraft? The Phoenix lander is about 18 feet (5.5 meters) long with the solar panels deployed. The science deck by itself is about 5 feet (1.5 meters) in diameter. From the ground to the top of the MET mast, the lander measures about 7 feet (2.2 meters) tall.
Wind speeds have been increasing with altitude, reported Dr. Robert Sullivan of Arizona State University. And temperatures will vary dramatically with elevation. When ground temperatures are 16 to 21 degrees Celsius (60 to 70 degrees Fahrenheit), they can drop to minus 23 to 27 degrees Celsius (minus 10 to minus 15 degrees Fahrenheit) just five and a-half feet above the ground.
During their exploration of Mars, the rovers have recorded temperatures ranging from midday highs of about 35 degrees C. (95 degrees F.) in spring and summer to nighttime lows of about minus 110 degrees C. (minus 166 degrees F.) in winter.
Temperature: The lowest surface temperature on Mars is –190° F (–123° C), while the hottest temperature is 90° F (32° C).