On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

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Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Google, SpaceX and Blue Origin are reportedly racing to develop technology for AI data centers in space, but it will likely ...

Another view from Perseverance shows how windswept Mars' landscape truly is.