April 27, 2012
NASA photos seem to show a lava flow flowing into a branch of Mars’ Valles Marineris, which is 6 miles deep and 2,485 miles long.
Stories this photo appears in:
Middle school students tackle Martian mystery — and learn to think like scientists
The “ah-ha” moment hung in the air. The NASA scientist posed it to seven Rim Country Middle School (RCMS) students who had spent months searching photos of Mars for clues in a planetary mystery: Which came first — the solar system’s longest, deepest canyon or a giant sprouting of volcanoes? They had just made a presentation steeped in frustration, with ample evidence to support either theory.