The United Nations’ International Asteroid Warning Network (IAWN) has activated a broad campaign, rallying support from Nasa ...
Live Science on MSN
The UN is closely watching alien comet 3I/ATLAS. Here's why.
Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS.
A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.
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