This image made available by the China National Space Administration on Wednesday, Dec. 16, 2020 shows the Tianwen-1 probe en route to Mars. China's duo _ called Tianwen-1, or “Quest for Heavenly Truth” _ will remain paired in orbit until May, when the rover separates to descend to the dusty, ruddy surface. If all goes well, it will be the second country to land successfully on the red planet. (CNSA via AP)

FILE - In this Monday, July 20, 2020 file photo, men watch the launch of the "Amal" or "Hope" space probe at the Mohammed bin Rashid Space Center in Dubai, United Arab Emirates. The orbiter is scheduled to reach Mars on Tuesday, Feb. 9, 2021, followed less than 24 hours later by China’s orbiter-rover combo. NASA’s rover will arrive on the scene a week later, on Feb. 18, to collect rocks for return to Earth _ a key step in determining whether life ever existed at Mars. (AP Photo/Jon Gambrell)

FILE - This June 1, 2020 illustration provided by Mohammed Bin Rashid Space Centre depicts the United Arab Emirates' Hope Mars probe. (Alexander McNabb/MBRSC via AP)

FILE - In this Thursday, July 23, 2020 photo released by China's Xinhua News Agency, a Long March-5 rocket carrying the Tianwen-1 Mars probe lifts off from the Wenchang Space Launch Center in southern China's Hainan Province. (Guo Cheng/Xinhua via AP)

FILE - This July 23, 2019 photo made available by NASA shows the head of the Mars rover Perseverance's remote sensing mast which contains the SuperCam instrument in the large circular opening, two Mastcam-Z imagers in gray boxes, and next to those, the rover's two navigation cameras, at the Jet Propulsion Laboratory in Pasadena, Calif. The robotic vehicle will hunt for rocks containing biological signatures, if they exist. (NASA/JPL-Caltech via AP)

This illustration made available by NASA depicts the Ingenuity helicopter on Mars after launching from the Perseverance rover, background left. It will be the first aircraft to attempt controlled flight on another planet. (NASA/JPL-Caltech via AP)

This illustration provided by NASA shows the Perseverance rover, bottom, landing on Mars. Hundreds of critical events must execute perfectly and exactly on time for the rover to land safely on Feb. 18, 2021. Entry, Descent, and Landing, or "EDL," begins when the spacecraft reaches the top of the Martian atmosphere, traveling nearly 12,500 mph (20,000 kph). EDL ends about seven minutes after atmospheric entry, with Perseverance stationary on the Martian surface. (NASA/JPL-Caltech via AP)

FILE - In this Dec. 17, 2019 photo made available by NASA, engineers watch the first driving test for the Mars 2020 rover, later named "Perseverance," in a clean room at the Jet Propulsion Laboratory in Pasadena, Calif. (J. Krohn/NASA via AP)

FILE - In this Wednesday, May 6, 2015 file photo, Sarah Amiri, deputy project manager of a planned United Arab Emirates Mars mission talks about the project named "Hope," "Amal" in Arabic, during a ceremony in Dubai, United Arab Emirates. (AP Photo/Kamran Jebreili)

In this illustration provided by NASA, the Perseverance rover fires up its descent stage engines as it nears the Martian surface.. This phase of its entry, descent and landing sequence, or EDL, is known as "powered descent." (NASA/JPL-Caltech via AP)

This image made available by NASA depicts a possible area through which the Mars 2020 Perseverance rover could traverse across Jezero Crater. This mosaic is composed of aligned images from the Context Camera on the Mars Reconnaissance Orbiter. (NASA/JPL-Caltech/USGS via AP)

FILE - In this Thursday, July 23, 2020 photo released by China's Xinhua News Agency, spectators watch as a Long March-5 rocket carrying the Tianwen-1 Mars probe lifts off from the Wenchang Space Launch Center in southern China's Hainan Province. (Yang Guanyu/Xinhua via AP)

This illustration provided by NASA depicts the Mars 2020 spacecraft carrying the Perseverance rover as it approaches Mars. Perseverance’s $3 billion mission is the first leg in a U.S.-European effort to bring Mars samples to Earth in the next decade. (NASA/JPL-Caltech via AP)

FILE - In this Thursday, June 25, 2020 file photo, Mahmood al-Nasser, left, and Mohammad Nasser al-Emadi test the Emirates Mars Mission probe's "flat sat" at the Mohammed bin Rashid Space Center in Dubai, United Arab Emirates. The spacecraft, named "Amal," Arabic for "Hope," will be the Arab world's first interplanetary mission. (AP Photo/Jon Gambrell)

FILE - In this Thursday, Nov. 14, 2019 file photo, a lander is lifted during a test of hovering, obstacle avoidance and deceleration capabilities of a Mars lander at a facility in Huailai in China's Hebei province. China’s orbiter-rover combo, Tianwen-1, is scheduled to reach Mars on Wednesday, Feb. 10, 2021. (AP Photo/Andy Wong, File)