Four small planets discovered around one of the closest stars to Earth—an expert explains what we know
Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...
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Is Callisto, Jupiter’s moon with the most craters and third largest in the Solar System, an oceanic world with life?
If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.
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Mercury and Saturn alignment tonight is ‘unique.’ Here’s why
Mercury is followed by Venus, Earth and Mars, all rocky planets. Earth’s largest neighbor, Jupiter, starts off the outer solar system. Saturn is the second largest planet, with Uranus and ...
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Earth: Facts about the Blue Planet
Earth's circumference is 24,901 miles (40,075 km), making it the largest rocky planet in the solar system. Our planet orbits 93 million miles (150,000 km) away from the sun. This puts Earth in a ...