The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...
Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...
There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...
NASA’s James Webb Space Telescope has found the strongest evidence yet that a small, rocky planet outside our solar system ...
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Asteroid belt — What it is, where it is and how it formed
A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...
When it comes to planets in our Solar System's habitable zone, one world is too close to the Sun, another is too far and ...
LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...
This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...
Discover which planet is the fastest in the solar system. Learn why Mercury moves at 47 km/s, has the shortest year, and ...
Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...
Astronomers rarely see distant planets directly, instead tracking tiny stellar wobbles and fading light. How do these subtle ...
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