Weizmann Institute of Science

148: Solving an Apollo mystery with Dr. Curren

When taking a sample of the Moon's surface, the Apollo astronauts discovered a sharp transition from powdery soil to harder rock. This transition was entirely unexpected, and remained unexplained for decades.  Dr. Ivy Curren  talks about an experiment she designed to explain this phenomena. She also tells us about a type of lunar dust formation that scientists call "fairy castle structures."

When taking a sample of the Moon's surface, the Apollo astronauts discovered a sharp transition from powdery soil to harder rock. This transition was entirely unexpected, and remained unexplained for decades. Dr. Ivy Curren talks about an experiment she designed to explain this phenomena. She also tells us about a type of lunar dust formation that scientists call "fairy castle structures."

91: Tectonic hazard on Phobos with Dr. Curren

Dr. Ivy Curren  talks about Mars’ moon Phobos, and how grooves on its surface indicate that the interior may be fractured. This small, mysterious moon is covered in faults, making it a dicey place for future missions to land.  Enhanced-color image of Phobos, taken by the Mars Reconnaissance Orbiter. Credit: NASA / JPL-Caltech / University of Arizona.

Dr. Ivy Curren talks about Mars’ moon Phobos, and how grooves on its surface indicate that the interior may be fractured. This small, mysterious moon is covered in faults, making it a dicey place for future missions to land.

Enhanced-color image of Phobos, taken by the Mars Reconnaissance Orbiter. Credit: NASA / JPL-Caltech / University of Arizona.