Although this doesn't really look like a Congressional hearing photo, the source claims it is. The legend says "Jerrie Cobb and Janey Hart testifying before congress. (Netflix)"
It may look like this because the testimony was before a Subcommittee and not the full Congress:
Subcommittee of the House Committee on Science and Astronautics,
headed by Rep. Victor AnCuso, opened hearings on the role of
women in the space program. Jane B. Hart and Jerrie Cobb,
representing the 13 women who completed unofficial space quali-
fication tests a t the Lovelace Foundation, testified that women
had a real contribution to make and were qualified as astronauts.
Jacqueline Cochran, well-known flier, said that "there is no doubt
in the world that women will go into space.”
(1962 NASA chronology)
Janey Hart and Jerrie Cobb flew to Washington to try and change their minds. On July 17, 1962 Hart and Cobb testified before congress. Hart's statement began, "It will perhaps come as no surprise to you that I strongly believe women should have a role in space research. In fact, it is inconceivable to me that the world of outer space should be restricted to men only, like some sort of stag club."
Source: Right stuff, wrong gender — the true story of the women who almost went to the moon