Today Juno Will Get Our Best Look Yet at Jupiter’s Great Red Spot

Today, July 10 (July 11 UTC) NASA’s Juno spacecraft will make its first targeted flyover of Jupiter’s famous Great Red Spot since its arrival in orbit on July 4, 2016, getting our best look yet at the giant anticyclonic storm that’s been churning on the giant planet since at least 1830 (and possibly even since…

Jupiter’s Surprises Are Revealed In First Juno Science Results

Today after almost 11 months in orbit the Juno team revealed the first scientific findings of the mission to the public via a NASA teleconference, giving us our first peek at the inner workings of Jupiter and how much of a surprise our Solar System’s largest planet is proving to be…which of course is quite fitting, as the spacecraft…

Here’s Hubble’s Newest Knockout Portrait of Jupiter

On April 3, 2017, as Jupiter made its nearest approach to Earth in a year, NASA’s Hubble Space Telescope viewed the solar system’s largest planet in all of its up-close glory. At a distance of 415 million miles (668 million km) from Earth, Jupiter offered spectacular views of its colorful, roiling atmosphere, the legendary Great…

Juno’s Latest Flight Over Jupiter’s South Pole

On Monday, March 27, at 4:52 a.m. EDT (08:52 UTC) NASA’s Juno spacecraft made its fifth close pass of Jupiter, passing about 2,700 miles (4,400 km) above the planet’s clouds while traveling at a relative speed of 129,000 mph (57.8 kilometers per second). The images above, captured with the JunoCam instrument, show the giant planet’s south pole during…

OSIRIS-REx Captures a Picture of Jupiter from L4

NASA’s OSIRIS-REx may be designed to study asteroids close up but recently it’s captured a view of something farther away and much, much larger: the giant planet Jupiter and three of its largest moons at a distance of over 400 million miles! The image was taken on Feb. 12, 2017, when the spacecraft was 76 million…

Juno Will Not Enter Tighter Orbits Around Jupiter, Team Decides

NASA’s Juno spacecraft will remain in 53-day-long orbits of Jupiter rather than rocket down to smaller 14-day orbits, despite the mission’s original plan to do so. Announced today, Feb. 17, this decision comes after evaluation of issues with helium valves that prevented orbital reduction burns in October and December of 2016. “During a thorough review, we looked at multiple scenarios that…

Voyager 1’s Famous Long-Distance Valentine

If you’re in love with space then you’ll fall head over heels for this: it’s a picture of Earth taken from the Voyager 1 spacecraft after it passed the orbit of Pluto back in 1990—on Valentine’s Day, no less. That image of our planet from almost 4 billion miles away inspired Carl Sagan to write his famous…

This is Jupiter Seen from Mars

The HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter (MRO) is specifically designed to take super high-resolution images of the surface of Mars but it also does a pretty darn good job capturing pictures of other objects too—like Jupiter and its Galilean moons, several hundred million miles away! The image above was captured in extended color (i.e. it…

Eppur Si Muove: Galileo’s Big Night, 407 Years Ago Today

407 years ago tonight, on January 7, 1610, the Pisan astronomer Galileo Galilei looked up at a brilliantly-shining Jupiter through his own handmade telescope and saw three bright little “stars” next to it, stirring his natural scientific curiosity. Further observations over the next several nights showed that the planet wasn’t moving relative to the little “stars” as it…

Juno Just Hours from Jupiter Arrival

After nearly 5 years of traveling through space NASA’s Juno spacecraft is just a few dozen hours away from entering orbit around Jupiter, the Solar System’s largest, most massive, and most extreme planet. “We are ready,” said Scott Bolton, principal investigator of Juno from the Southwest Research Institute (SwRI). “The science team is incredibly excited…

Europa’s Icy Crust May Be Warmer Than We Thought

All the worlds may be ours except Europa but that only makes the ice-covered moon of Jupiter all the more intriguing. Beneath Europa’s thin crust of ice lies a tantalizing global ocean of liquid water somewhere in the neighborhood of 100 kilometers deep—which adds up to more liquid water than is on the entire surface of the Earth. Liquid…