If it succeeds, three more such objects will be sent out in 2022, according to Wu Chunfeng, a space scientist.

据太空科学家武春风称，如果成功，2022年将再发射三个这样的物体。

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Steve Squyres is the chief scientist for the American space agency's Mars Rover Project.

VOA: special.2010.05.25

Nicholas Johnson is chief scientist for orbital debris for the United States space agency.

VOA: special.2009.04.01

"Anyone who had a passion for astronomy was welcomed by him... the effort he put in was absolutely unmatched, " said space scientist Dr Lucie Green.

BBC: Tributes paid to Sir Patrick Moore

"But he would tell us more, he would go into depth, he would take us on a journey through space and we can't ask for better than that really, " said space scientist Maggie Aderin-Pocock.

BBC: Tributes paid to Sir Patrick Moore

"There are loads of ideas floating around, and they're serious about implementing them, " said UK space scientist John Zarnecki, who is a visiting professor at Beihang University, the new name for the Beijing University of Aeronautics and Astronautics.

BBC: Rocket launches Chinese space lab