The volcano stands at 29,600 feet and stretches for 280 miles, and evidence shows it has been active for a very long time.

NASA SEEKS PARTICIPANTS FOR SECOND YEAR-LONG MARS MISSION SIMULATION The ... last year when we realized we were inside a huge and deeply eroded volcano," said Dr. Pascal Lee, planetary scientist ...

"Rootless cones form when lava flows over wet or icy ground, causing it to boil and explode," said Dundas. "The region around ...

What does NASA's discovery of odd popcorn rocks on Mars actually mean? It has discovered an oddly textured rock similar to ...

There is a geological formation on the Martian surface that scientists say could be a huge ice water deposit ... Scientists operating Europe's Mars Express orbiter, which landed on the Red ...

Some are found around the Big Island’s coast in Hawai'i, but it is on Mars that these geological ... In the traditional volcano setup, the foaming is achieved with the use of an acid (vinegar ...