Thomas Gold was an Austrian-born astrophysicist, who also held British and American citizenship. He was a professor of astronomy at Cornell University, a member of the U.S. National Academy of Science
Thomas Gold
The discovery of a pulsar with 0.033 second period in the Crab Nebula led to the acceptance of Gold's theory on pulsars.
Bootprint of Lunar Module Pilot Buzz Aldrin on the surface of the Moon. Aldrin photographed this bootprint on July 20, 1969, as part of investigations into the soil mechanics of the lunar surface.
Tube worms feeding at base of a black smoker hydrothermal vent
The deep biosphere is the part of the biosphere that resides below the first few meters of the land surface and seafloor. It extends 10 km below the continental surface and 21 km below the sea surface
Thomas Gold
…The subsurface life obtains its energy not from photosynthesis but from chemical sources in fluids migrating upwards through the crust. The mass of the deep biosphere may be comparable to that of the surface biosphere. Subsurface life may be widespread on other bodies in the solar system and throughout the universe…
Environments in which subsurface life has been found
Photograph of the sunken Alvin taken in 1969
Schematic of an expedition aboard the Japanese drilling ship D/V Chikyū
Researcher sampling fluid from a deep mine