A simple breakdown of the new 3I/ATLAS pulsing discovery and why scientists are checking if Callisto might be affected.

It is a cosmic enigma that has left astronomers scratching their heads: a mysterious object, hurtling into our solar system ...

The waning moon shines close to the king of the planets on Dec. 7. Don't miss Jupiter shining close to the waning gibbous ...

Gorgeous images of stellar nurseries are featured this week alongside some of the solar system's moons: Mars's Deimos, ...

Witness the celestial spectacle of Jupiter shining brightly near the waning gibbous moon in the Gemini constellation on ...

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The Last Quarter Moon phase is scheduled for October 12 at 2:13 P.M. EDT. On October 12 at 6 P.M. EDT, the Moon will pass 4° north of Jupiter, with Jupiter exhibiting a magnitude of –2.2. Telescopic ...