The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, takes off on its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019. REUTERS/Gene Blevins
Heavy black smoke rises from one of the six engines starting, before the first test flight of the world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, lands during its first test flight in Mojave, California, U.S. April 13, 2019. REUTERS/Gene Blevins - RC127758C7B0
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019.
The world's largest airplane, built by the late Paul Allen's company Stratolaunch Systems, makes its first test flight in Mojave, California, U.S. April 13, 2019. REUTERS/Gene Blevins - RC15C23ACF60
The world's largest airplane