Before the historic "great conjunction" of Jupiter and Saturn on Dec. 21, the planets will have a close encounter with the crescent moon on Wednesday and Thursday (Dec. 16-17).
NASA's Juno mission is exploring Jupiter from orbit, beaming back amazing photos, atmospheric data and other observations about the largest planet in our solar system. The Juno probe launched Aug. 5, 2011 and arrived in orbit around Jupiter on July 4, 2016. It is the farthest space probe ever to be powered by solar arrays. The $1.1 billion mission is expected to run through July 2021, but the science of Jupiter it returns will last a lifetime. Learn more about Juno's Jupiter discoveries here.
The Jupiter moon Europa may cough water into space from small pockets in its icy crust, a new study suggests.
The icy Jupiter moon Europa is an astrobiological beacon, quite literally glowing in the deep darkness far from the sun, a new study suggests.
Just in time for Halloween, NASA announced results from the space agency's Juno mission that suggest "sprites" or "elves" could be frolicking in Jupiter's upper atmosphere.
During the "Great Conjunction" on Dec. 21, 2020, Jupiter and Saturn will be about one-tenth of a degree apart, their closest approach since 1623.
NASA is choosing between human missions to the moon and a robotic mission to Jupiter's icy moon Europa as the agency manages its limited supply of megarockets in the coming years.
What is creating the bubbling, gaseous atmosphere on Jupiter's moon Io? Scientists think they finally have the answer: volcanoes.
Skywatchers will be treated to an eye-catching gathering in the south-southwest sky about an hour after sunset on Thursday (Oct. 22) — a large triangle formed by the moon, Jupiter and Saturn.
A photo by the Hubble Space Telescope shows the solar system's largest planet in surprising pastel hues.
The mystery of how giant cyclones stay together in geometric patterns around the poles of Jupiter may now be solved, but new questions have emerged as to how these clusters formed in the first place.
NASA's highly anticipated mission to the Jupiter ocean moon Europa needs a rocket — and soon, the project's planners say.
Jupiter's big ocean-harboring moons may have a strong gravitational effect on each other, raising big tides in each others' subsurface seas, a new study suggests.
Thunderstorms on Jupiter are so strong that they create ammonia-rich hail known as "mushballs" that may fall from the sky.
Scientists have discovered what they believe may be the largest impact crater in the entire solar system, with scars covering a vast portion of Jupiter's huge moon, Ganymede.
This week, Jupiter and Saturn appear at their very best, with Jupiter having just arrived at opposition July 14 and Saturn to reach its own opposition July 20.