Jupiter is already the biggest planet in our solar system. It used to be known as the planet with the second-most moons with 80, trailing only Saturn with 83.

You won't need binoculars to catch this shiny display: Jupiter will be at its biggest and brightest Tuesday night. The gas giant will be in opposition — opposite the sun — rising high in the ...

This illustration depicts a Jupiter-like exoplanet called TOI-2180 b. It was discovered in data from NASA's Transiting Exoplanet Survey Satellite. (Credits: NASA/JPL-Caltech/R. Hurt) ...

New images taken by the Gemini North telescope and the Hubble Space Telescope have captured Jupiter in visible, infrared and ultraviolet light, revealing unique atmospheric features of the gas ...

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 ...

First, some facts. Jupiter, the fifth planet from the Sun, is between Mars and Saturn. It’s the largest planet in the solar system, big enough for more than 1,000 Earths to fit inside, with room ...

Growing a gas giant. Jupiter may predominantly be a ball of swirling gas today, but it started its life by accreting rocky material — just like every other planet in the solar system.

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 ...

Jupiter’s lights are also affected by a combination of the planet spinning really quickly — a day on Jupiter is only 10 hours long — and volcanic material pumped out by Jupiter’s moon Io.

While hunting for the elusive Planet X, astronomers have discovered 12 additional moons around Jupiter, bringing the grand total of the planet’s known satellites up to a whopping 79.

It hasn't been all smooth sailing for Juno since it arrived at Jupiter. NASA mission managers have kept Juno in a 53-day orbit around the huge planet instead of moving it down into a shorter orbit ...

Last week, astronomers announced that a hot Jupiter orbiting a star 400 light years away has a pal: It shares its solar system with WASP-84c, a rocky planet so large it’s known as a super-Earth.