Clarence Allen (MS ’51, PhD ’54), professor of geology and geophysics, emeritus, and a prominent seismologist, passed away on January 21, 2021. He was 96 years old.
On February 18, 2021, NASA’s Perseverance rover landed in Jezero Crater on Mars. The team identified Jezero Crater as an ancient lakebed, illustrated here—as it may have been billions of years ago—filled with water.
Ernie Mercado dished out good food at low prices for 34 years at Caltech. Upon his retirement, alumni and students showed their appreciation by raising more than $35,000 as a final tip.
(BS ’44)
(BS ’38, MS ’39)
(P’97)
(BS ’87)
(BS ’48)
(ENG ’47)
(BS ’52)
(MS ’54)
(MS ’49)