Fossil of previously unknown four-legged whale found in Egypt
A 500-Year-Old Aztec Manuscript Is The Oldest Written Record Of Earthquakes In The Americas
China is studying the in-orbit assembly of an extra-large spacecraft (1km in size) to be developed during the 14th Five-Year Plan (2021-25), which is expected to be a major strategic vehicle for its future use of space resources, deep-space explorations and long-term human stays in outer space.