The new NASA data about the channel on Mars shows that it was most likely carved by flowing liquid , not just by a single, simple process.

What the new evidence card shows

From the new Mars evidence card used in the “Geology on Mars” lesson, you can learn that:

  • Scientists compared the Martian channel to two different model channels on Earth : one made by flowing water and one made by flowing lava.
  • When you look closely at both models, you see that features from each model match parts of the Martian channel , not just one of them.
  • The evidence card emphasizes that channels formed in both the Flowing Water Model and the Flowing Lava Model look similar to the channel seen on Mars.

What new understanding this gives you

After examining that new evidence card:

  1. You learn that the Martian channel is more complex than it first appears; it doesn’t match only a “typical” river or only a lava flow.
  1. You see that scientists can’t just rely on one piece of evidence ; they need to compare multiple models and consider that Mars’ surface may record more than one process over time (for example, lava flows reshaping an older water-carved channel).
  1. Your earlier idea (for example, “it must be only water” or “only lava”) becomes less certain, and you shift toward an explanation where both water and lava may have helped shape the channel.

So, the new thing you learn from the evidence card is that the Martian channel’s shape is best explained when you consider both flowing water and flowing lava models together , rather than choosing just one cause.

TL;DR:
The new NASA evidence card suggests the channel on Mars shares features with both water-made and lava-made channels, so scientists now think multiple processes may have shaped it, not just one.