
Asteroid discovered in 1998 is actually a comet
A near-Earth object long believed to be an asteroid has been revealed to be a hidden comet, a discovery that could improve scientists' ability to track potential threats to Earth.
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A near-Earth object long believed to be an asteroid has been revealed to be a hidden comet, a discovery that could improve scientists' ability to track potential threats to Earth.

Astronomers may have discovered the first known exosatellite, an object that blurs the line between a moon and planet.

Today, the Department of War is publishing the fourth release of declassified and historical Unidentified Anomalous Phenomena (UAP) files as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE).