Jupiter's fifth moon to be discovered, and the fifth-largest of the planet's 95 known moons, is Amalthea. It was found in 1892 by Edward Emerson Barnard, an American astronomer who was an ...

Jupiter is our solar system's biggest planet by far. It used to be twice as large: Study A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow ...

Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Credit: NASA / JPL-Caltech / SwRI / MSSS / Tanya Oleksuik Jupiter, the ...

But these are not the planet's only celestial tag-alongs. Jupiter has dozens more—and there may still be more to find. In 2003 alone, astronomers identified 23 new moons.

A new research paper describing the discovery of the planet was published in the Astrophysical Journal, and it suggests that the so-called “young Jupiter” is indeed just a baby, at least in ...

Astronomers have discovered a brand new cold "super Jupiter" exoplanet, marking the closest of its kind ever found to us. The new planet, named Eps Ind Ab, orbits a star called Epsilon Indi A ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

People around the world will have a chance this weekend to catch what could be the year’s most stunning view of the largest planet in our solar system. Jupiter on Saturday will shine at its ...