Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for being a planet, putting Pluto into the new category of dwarf planet ...
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The James Webb telescope just solved a decades-old Saturn mystery — the planet’s rotation rate was never actually coming from the planet at all
For more than 40 years, planetary scientists believed they knew how long a day on Saturn lasted. They were listening to the wrong clock. A study published in May 2026 in the Journal of Geophysical ...
A giant planet nearly 700 light-years away has a bizarre daily weather cycle where mineral clouds appear every morning and ...
Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...
The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.
Though long theorized to exist, the first exoplanet was detected in 1991. Since then, their known diversity has increased exponentially.
The Blue Origin explosion proves that space is still hard, and things can go wrong unexpectedly.
Planet Labs PBC operates a global network of small satellites capturing daily, high-resolution Earth imagery. Learn more ...
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