Old, digitized astronomical images taken before the human spacefaring age offer a unique view of the sky devoid of known artificial satellites. In this paper, we have carried out the first optical ...
A Long March 3B lifts off from Xichang on Aug. 12, 2023, carrying the Ludi Tance-4 (01) satellite into GTO. Credit: Ourspace HELSINKI — China launched what is thought to be the world’s first ...
We show the candidate in SuperCosmos scans of POSS-I red (left) and POSS-II red (right) images. Transients are marked with green circles. The candidate with a measured coordinate is marked with a ...
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