U.S. President Joe Biden is seen through a curtain hole while congratulating the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden uses a custom pen while participating in a virtual call to congratulate the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden participates in a virtual call to congratulate the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden gestures while congratulating the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden participates in a virtual call to congratulate the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden gestures while congratulating the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden gestures while congratulating the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden participates in a virtual call to congratulate the NASA JPL Perseverance team on the successful Mars landing, inside the Roosevelt Room at the White House in Washington, U.S., March 4, 2021. REUTERS/Tom Brenner

French President Emmanuel Macron attends a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French Higher Education, Research and Innovation Minister Frederique Vidal, and Chairman and CEO of the CNRS Antoine Petit (R) attend a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron (C) speaks with Chairman and CEO of the CNRS Antoine Petit (R) as he leaves a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron attend a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron (R), flanked by President of the French National Center for Space Studies (CNES) Jean-Yves Le Gall (C) and French astrophysicist and SuperCam creator Sylvestre Maurice (C-L), looks at a 3D model of the planet Mars during a viewing of the landing of the NASA Perseverance Mars rover on the planet, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron attend a viewing of the landing of the NASA Perseverance Mars rover on the planet Mars, at the French National Center for Space Studies (CNES) in Paris, France, February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron reacts during a viewing of the successful landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron reacts during a viewing of the successful landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

President of French National Center for Space Studies (CNES), Jean-Yves Le Gall speaks as French President Emmanuel Macron and wife Brigitte Macron attend a viewing of the landing of NASA's Perseverance Mars rover on the planet at CNES in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

3D model of the SuperCam instrument on display at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

3D model of the SuperCam instrument on display at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French astrophysicist and SuperCam creator Sylvestre Maurice poses next to a 3D model of the SuperCam instrument on display at the French National Center for Space Studies (CNES) ahead of the landing of NASA's Perseverance Mars rover on the planet, in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron and wife Brigitte Macron attend a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron and wife Brigitte Macron attend a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

French President Emmanuel Macron attends a viewing of the landing of NASA's Perseverance Mars rover on the planet at the French National Center for Space Studies (CNES) in Paris, France February 18, 2021. Christophe Petit-Tesson/Pool via REUTERS

Electoral workers at curbside voting in St. Charles County for voters who have coronavirus disease (COVID-19), during Election Day in Missouri, U.S., November 3, 2020. Photographer Lawrence Bryant: "I was struck by the way these poll workers waited for a voter using curb side voting for people with COVID-19 to make her selections on the ballot. To me, they seemed to be giving her privacy by turning their backs and chatting to pass the time. It shows the perseverance of people seeking to have their voice heard during a pandemic and the courage of the poll workers enabling them to do so." REUTERS/Lawrence Bryant/File photo SEARCH "ELECTIONS PHOTOGRAPHERS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper TPX IMAGES OF THE DAY

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle lifts off from the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle is seen before taking off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper TPX IMAGES OF THE DAY

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle takes off from Cape Canaveral Space Force Station in Cape Canaveral, Florida, U.S. July 30, 2020. REUTERS/Joe Skipper TPX IMAGES OF THE DAY

A replica of the Mars 2020 Perseverance Rover is shown during a press conference ahead of the launch of a United Launch Alliance Atlas V rocket carrying the rover, at the Kennedy Space Center in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

A replica of the Mars 2020 Perseverance Rover is shown during a press conference ahead of the launch of a United Launch Alliance Atlas V rocket carrying the rover, at the Kennedy Space Center in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

NASA Administrator Jim Bridenstine speaks about the Mars 2020 Perseverance Rover during a press conference ahead of the launch of a United Launch Alliance Atlas V rocket carrying the rover, at the Kennedy Space Center in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

NASA Administrator Jim Bridenstine stands next to a replica of the Mars 2020 Perseverance Rover during a press conference ahead of the launch of a United Launch Alliance Atlas V rocket carrying the rover, at the Kennedy Space Center in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle is readied for launch at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle is readied for launch at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle is readied for launch at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

A United Launch Alliance Atlas V rocket carrying NASA's Mars 2020 Perseverance Rover vehicle is readied for launch at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S. July 29, 2020. REUTERS/Joe Skipper

U.S. Senator Cory Booker (D-NJ) takes a photo with a voter at a house party in Concord, New Hampshire, U.S., December 8, 2018. Picture taken December 8, 2018. REUTERS/Elizabeth Frantz

A man reads a newspaper before the start of a house party with Democratic U.S. presidential candidate Senator Elizabeth Warren in Amherst, New Hampshire, U.S., April 20, 2019. Picture taken April 20, 2019. REUTERS/Elizabeth Frantz

People wait for the start of a house party with Democratic U.S. presidential candidate Senator Elizabeth Warren in Amherst, New Hampshire, U.S., April 20, 2019. Picture taken April 20, 2019. REUTERS/Elizabeth Frantz