
Former U.S. Senator Bill Nelson’s daughter, Nan Ellen Nelson, left, and his wife Grace Nelson, listen as Bill Nelson, President Biden’s nominee to be the next administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Wednesday, April 21, 2021, Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Former Senator Bill Nelson, is ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, holds their family Bible, and son, Bill Nelson Jr., left, and Nan Ellen Nelson, second from left, look on, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden were also present. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, is ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, holds their family Bible, and his daughter, Nan Ellen Nelson, left, looks on, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden were also present. Photo Credit: (NASA/Aubrey Gemignani)

From left to right, Pam Melroy, current nominee for NASA Deputy Administrator, former NASA Administrator Charles Bolden, Bill Nelson Jr., son of Bill Nelson, Nan Ellen Nelson, daughter of Nelson, former Senator Bill Nelson, his wife, Grace Nelson, and Vice President Kamala Harris pose for a photo after Nelson was ceremonially sworn-in as the 14th NASA Administrator, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was also on display. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, is ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, holds their family Bible, and son, Bill Nelson Jr., third from left, and Nan Ellen Nelson, fourth from left, look on, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden, second from left, as well as Pam Melroy, current nominee for NASA Deputy Administrator, left, were also present. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, is ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, holds their family Bible, and son, Bill Nelson Jr., third from left, and Nan Ellen Nelson, fourth from left, look on, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden, second from left, as well as Pam Melroy, current nominee for NASA Deputy Administrator, left, were also present. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, speaks to media after he was ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, right, held their family Bible, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden were also present. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, speaks to media after he was ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, held their family Bible, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden, second from left, as well as Pam Melroy, current nominee for NASA Deputy Administrator, left, were also present. Photo Credit: (NASA/Aubrey Gemignani)

Former Senator Bill Nelson, speaks to media after he was ceremonially sworn-in as the 14th NASA Administrator by Vice President Kamala Harris, as his wife, Grace Nelson, held their family Bible, Monday, May 3, 2021, at the Ceremonial Office in the Old Executive Office Building in Washington. A moon rock collected by astronaut John Young during the Apollo 16 mission was on display and former NASA Administrators Jim Bridenstine (virtually on laptop) and Charles Bolden, second from left, as well as Pam Melroy, current nominee for NASA Deputy Administrator, left, were also present. Photo Credit: (NASA/Aubrey Gemignani)