Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...
Morning Overview on MSN
NASA reports strongest life-on-Mars signs yet with high confidence
In a quiet corner of an ancient riverbed on Mars, a speckled rock has pushed the search for extraterrestrial life into its ...
New research shows Karnak Temple was built on a rare island of high ground formed as Nile river channels shifted thousands of ...
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