Space exploration

This image taken from video animation provided by NASA, shows flips in the direction of the magnetic field embedded in the solar wind that flows out from the Sun, as detected by the NASA's Parker Solar Probe's FIELDS instrument. (NASA/Goddard/CIL via AP)

Kjetil Wormnes, automation and robotics system engineer, poses with the Space Rover after a training exercise of the European Space Agency, ESA, in Katwijk, near The Hague, Netherlands, Monday, Nov. 25, 2019. (AP Photo/Peter Dejong)

This photo provided by NASA shows talian astronaut Luca Parmitano and U.S. astronaut Andrew Morgan perform maintenance on the International Space Station during a space walk on Friday, Nov. 15, 2019. The astronauts ventured out with dozens of tools and four new pumps for the Alpha Magnetic Spectrometer. NASA considers these spacewalks the most difficult since the Hubble Space Telescope repairs a few decades ago. (NASA via AP)

A lander is lifted during a test of hovering, obstacle avoidance and deceleration capabilities at a facility in Huailai in China's Hebei province, Thursday, Nov. 14, 2019. China has invited international observers to the test of its Mars lander as it pushes for inclusion in more global space projects. Thursday's test was conducted at a site outside Beijing simulating conditions on the Red Planet, where the pull of gravity is about one-third that of Earth. (AP Photo/Andy Wong)

This image released on Wednesday, Nov. 13, 2019, by the Japan Aerospace Exploration Agency (JAXA), shows asteroid Ryugu taken by Japan’s Hayabusa2 spacecraft. The Japan spacecraft has departed from the distant asteroid, starting its yearlong journey home after successfully completing its mission to bring back soil samples and data that could provide clues to the origins of the solar system. (JAXA via AP)

In this Saturday, Nov. 2, 2019 photo provided by Space Cargo Unlimited, researchers with Space Cargo Unlimited prepare bottles of French red wine to be flown aboard a Northrop Grumman capsule from Wallops Island, Va., to the International Space Station. The wine will age for a year up there before returning to the Luxembourg company. Company officials say researchers will study how weightlessness and space radiation affect the aging process. (Space Cargo Unlimited via AP)

In this image made from a video provided by NASA parachutes guide the Starliner capsule to the ground after a test of Boeing's crew capsule's launch abort system in White Sands Missile Range in N.M., on Monday, Nov. 4, 2019. The capsule carried no astronauts Monday morning, just a test dummy. (NASA via AP)

Northrop Grumman's Antares rocket lift off the launch pad at NASA Wallops Flight facility in Wallops Island, Va., Saturday, Nov. 2, 2019. The rocket is carrying a Cygnus spacecraft carrying supplies to the International Space Station. (AP Photo/Steve Helber)

In this photo provided by NASA astronauts Christina Koch and Jessica Meir exits the International Space Station on Friday, Oct. 18, 2019. The world’s first female spacewalking team is making history high above Earth. This is the first time in a half-century of spacewalking that a woman floated out without a male crewmate. Their job is to fix a broken part of the station’s solar power network.(NASA via AP)