The father of scientist Walter Alvarez recived a Nobel Prize in Physics in what year?
3581 Alvarez 3581 Alvarez (1985 HC) is a Mars-crossing asteroid discovered on April 23, 1985, by Shoemaker, C. and Shoemaker, E. at Palomar. Based upon lightcurve data, it has a synodic rotation period of  hours with an amplitude variation of in magnitude. With a diameter of ~14 km, it is one of the largest Mars-crossing asteroids. However, due to the high inclination of its orbit, it never actually passes through the orbit of Mars since at perihelion it is well away from the plane of Mars' orbit. The asteroid is named after planetary scientist Walter Alvarez and his Nobel-prize winning father, physicist Luis Alvarez.
Emilio Herrera Linares Emilio Herrera Linares (February 13, 1879, Granada, Spain – September 13, 1967, Geneve, Switzerland) was a Spanish military engineer and physicist. He graduated from the military academy of Guadalajara in 1902; he subsequently researched aeronautics, including a brief period at the University of Santander. He was father of the poet José Herrera Petere. He is best known for his work in cosmology and pioneering studies for high-altitude flight, spaceflight, computing, and for designing a pressurized space suit that was to be used in a planned stratospheric balloon flight in 1936.