Search Results for: juno

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Juno finds a new auroral feature on Jupiter

NASA’s Juno spacecraft – whose mission in orbit around Jupiter was recently extended to 2025 – has been used to discover a rapidly expanding auroral ring at the very fringes of the Jovian magnetosphere.

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Juno’s new images reveal Ganymede’s north pole

These are the first spacecraft images yet acquired of the north pole of Ganymede, largest moon of the giant planet Jupiter. NASA’s Juno spacecraft – now orbiting Jupiter – obtained them.

Blue ball with white swirls.

And now, a word from Juno at Jupiter

Juno arrived at Jupiter in 2016. It’s in a 53-day orbit around the planet. Close sweeps past the planet are called “perijoves” (peri means “near”). Here are some spectacular images from the most recent sweep, Perijove 25, in February.

Animation of Jupiter and Juno spacecraft.

Juno prepares to jump Jupiter’s shadow

NASA’s Juno mission to Jupiter has now successfully executed a 10.5-hour propulsive maneuver. It’ll keep Juno – a solar-powered spacecraft – out of a mission-ending shadow due to have been cast by Jupiter onto the craft in November.

New Juno images of Io’s fiery volcanoes

Jupiter’s moon Io is the most volcanically active world in our solar system. The Juno spacecraft – now orbiting Jupiter – has now gazed across a distance to acquire new images and insights about the “fires of Io.”

Juno mission to Jupiter at halfway point

On December 21, NASA’s Juno spacecraft will make its 16th science pass over the cloud tops of Jupiter, marking the halfway point in the solar-powered spacecraft’s prime mission.

Juno’s look at Jupiter’s swirling clouds

See swirling cloud formations in the northern area of Jupiter’s north temperate belt in this new view taken by NASA’s Juno spacecraft.

Juno probes depths of Jupiter’s Great Red Spot

Juno spacecraft data show the Great Red Spot – nearly 1.5 Earths wide – with roots penetrating some 200 miles (300 km) into Jupiter’s atmosphere.

Wow! Juno’s 8th science flyby of Jupiter

A new and awesome batch of images has emerged from the Juno mission’s most recent flyby of Jupiter. Plus, the mission gets a new project manager.

Juno sees Jupiter and 2 large moons

Jupiter and 2 of its largest moons – Io and Europa – captured by the Juno spacecraft as it performed its 8th flyby of the planet on September 1, 2017.

Juno sees Jupiter up-close and personal

A series of images from the Juno spacecraft’s 8th close flyby of the gas giant planet

Wow! Juno’s super-close Red Spot images

Raw images from the Juno spacecraft’s extremely close sweep past Jupiter’s Red Spot are beginning to come in. NASA invites you to help process them!

Juno to buzz Jupiter’s Great Red Spot

On July 10, we’ll get humanity’s first up-close and personal view of the spot — a storm monitored since 1830 and possibly existing for more than 350 years.

Juno at Jupiter: 1st science results

An update on the science coming out of the Juno spacecraft mission to the gas giant planet Jupiter – largest planet in our solar system – and some spectacular recent images.

Juno in safe mode for Jupiter flyby

A sudden safe mode halted planned data collection during the spacecraft’s perijove – or closest point to Jupiter – on October 19. Next perijove December 11.

Success for Juno’s 1st Jupiter flyby

Juno spacecraft arrived at Jupiter on July 4 and has spent some weeks in a testing mode. On Saturday, it came closer to Jupiter than any spacecraft ever has.

Juno soars closest to Jupiter August 27

The Juno spacecraft will be about 2,500 miles (4,200 km) above Jupiter’s swirling clouds. No other spacecraft has ever orbited Jupiter this closely.

Juno’s 1st in-orbit view of Jupiter

Color view from JunoCam, showing the planet, the Red Spot and several moons. Plus … calling all astrophotographers to participate in the mission!

Success! Juno is orbiting Jupiter

After a 5-year voyage, Juno performed a successful braking maneuver on July 4. First spacecraft to enter Jupiter orbit since Galileo in the 1990s.

Boom! Juno within Jupiter’s magnetosphere

In late June, as Juno crossed into Jupiter’s magnetic field, an instrument aboard the craft recorded the bow shock. Hear it here.

Juno on Jupiter’s doorstep

Juno spacecraft on approach to Jupiter! The craft will arrive at Jupiter on July 4, first spacecraft to orbit the giant planet since Galileo (1995-2003).

Juno captured starship-like view of Earth and moon

The closest we’ve come yet to being on the bridge of the starship Enterprise, but this time it’s Earth on the view screen. Thanks, Juno spacecraft!

Juno craft, headed for Jupiter, resumes full flight operations

After a temporary glitch that occurred after Juno’s flyby of Earth on Wednesday – and after a short period in safe mode – the Jupiter-bound craft is fully functioning again.

Raw images from Juno spacecraft’s Earth flyby

More images will be released soon, from Juno’s flyby of Earth on Wednesday. Plus check out a simulation of Juno’s unique perspective on Jupiter in 2016.

Video: Bill Nye explains Earth flyby of Juno spacecraft

Watch Bill Nye explain why the Juno spacecraft is being routed so close to Earth on October 9, and what the craft will do when it reaches Jupiter in 2016.

Jupiter-bound Juno spacecraft image of Earth and moon

Juno captured this image of the Earth and moon on August 26, 2011 from about six million miles away.

LEGO figurines going to Jupiter with Juno spacecraft

NASA’s Jupiter-bound Juno spacecraft will carry LEGO likenesses of Galileo Galilei, the Roman god Jupiter, and his wife Juno to Jupiter.

Juno spacecraft’s goal to reveal Jupiter’s secrets

On August 5, 2011, NASA launched the Juno spacecraft on a $1.1 billion mission to Jupiter. The craft will orbit for a year and sweep near Jupiter’s cloudtops.

Four curved squares with bright spots and a fuzzy straight line across all four, on black background.

1st complete view of Venus’ orbital dust ring

NASA’s Parker Solar Probe, currently studying the sun, has observed the entire dust ring that encircles the sun along Venus’ orbit. It is the first complete view of this dust band from any spacecraft.

Half a sphere covered in swirling white and brown clouds.

Is Jupiter a key to finding dark matter?

Jupiter’s large size and cool core make it an excellent target in the search for dark matter. A team of scientists is analyzing gamma-ray data from the Fermi Telescope looking for signs of the elusive substance.

Cloud of stars stretching across sky with black tree silhouettes.

Milky Way season has started!

Spring brings flowers to the landscape and photos of the Milky Way to EarthSky! Enjoy these photos of our galaxy taken in 2021, and keep your eye on this space for more to come!

A thick ring of orange dust, superimposed on the orbits of Earth and Mars in oblique diagram of solar system.

Do Mars dust storms cause the mysterious zodiacal light?

The zodiacal light is a strange pyramid of light that extends from the eastern or western horizon, before dawn or as true darkness falls. It was known to stem from dust moving in the plane of our solar system. The Juno spacecraft has found that Mars might be the source of the dust.

Pyramid-shaped hazy band of zodiacal light, next to a bright section of the starry Milky Way.

It’s time to watch for the zodiacal light

The zodiacal light is an eerie light extending up from the horizon. This is a good time of the year to see it in the evening from the Northern Hemisphere. Southern Hemisphere, look before dawn!

Bright yellowish and bluish moon in front of dimmer giant planet.

How Jupiter’s moon Io gets its hellish atmosphere

Hot, active volcanoes produce almost half of Jupiter’s moon Io’s sulfur atmosphere, according to new observations using the ALMA telescope. The rest comes from cold sulfur deposits that freeze on the surface, then sublimate in sunlight.

Long blue lightning-like flash, with many tendrils, on black background.

Electric! Astronomers find sprites in Jupiter’s atmosphere

Scientists with NASA’s Juno mission say they have detected sprites or elves – electrical phenomena above thunderstorms on Earth – in the clouds of Jupiter for the first time. Unlike the red-colored earthly ones however, the Jovian ones are blue.

Large striped planet and two smaller planets and star in distance.

Super-Earth exoplanets often have giant ‘Jupiter’ bodyguards

Planetary systems with both super-Earths and Jupiter-type planets may be common, according to a new study. As in our own solar system, the giant planets would act as “bodyguards” protecting the smaller planets from asteroid impacts.

Surprising number of exoplanets could host life

A new study suggests that distant stars in our Milky Way galaxy might be orbited by as many as 7 Earth-like planets, in the absence of a gas giant planet like Jupiter.

Bright plume with planet and stars in background.

More evidence for watery plumes on Europa

Scientists in Europe have found more yet evidence for water vapor plumes on Jupiter’s ocean moon Europa.

Reddish globe with a wide dark band, and stars in the background.

This brown dwarf might look a lot like Jupiter

The cloud bands on brown dwarf Luhman 16A were found via instruments known as polarimeters. An astronomer said they’re like “… an astronomer’s polarized sunglasses. But instead of trying to block out that glare, we’re trying to measure it.”

Big red blobby star image.

Betelgeuse is ‘fainting’ but (probably) not about to explode

The well-known bright star Betelgeuse – a red giant star, famous for its name and for the fact that it’ll explode someday – has become noticeably dimmer since late October. Here’s what astronomers think is happening.

A total of 7 well-defined cyclones, visible at Jupiter's south pole. One is directly in the center of the group, and the other 6 are evenly spaced around it.

Don’t miss these cyclones on Jupiter, and more

The Juno spacecraft’s last perijove – or closest point to Jupiter – resulted in a treasure trove of images. Its next perijove is coming up on December 26. Get updated here, and view Juno’s latest amazing images.

Banded giant planet close to its star.

Water on giant exoplanets both common and scarce

A new study of the atmospheres of known giant exoplanets suggests that water – an essential ingredient for life – may be common on other worlds in our Milky Way galaxy. At the same, there may be less of it than astronomers once expected.

Jupiter, seen from Juno.

Ka-bam! Signs of a giant impact with Jupiter

Scientists used Juno spacecraft data and models of how Jupiter’s inner core should look to probe the giant planet’s early history. They now think an object with 10 times Earth’s mass might have struck Jupiter billions of years ago.

Infrared view of Jupiter.

Is Jupiter’s Great Red Spot disintegrating?

Jupiter’s Great Red Spot is a giant storm, the largest known in our solar system. It’s been seen through earthly telescopes for more than 300 years. Lately, it’s been showing signs of breaking apart. Is this the beginning of the end for the beloved Spot?

Triton as seen by Voyager 2.

NASA proposes mission to Neptune moon Triton

Triton is Neptune’s largest moon. It’s a bizarre and geologically active world – a possible ocean moon – visited by Voyager 2 in 1989. Now, NASA has proposed a new mission called Trident to sweep past Triton again in 2038.

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What’s going on with Jupiter’s Red Spot?

This giant storm has remained a nearly constant feature of Jupiter’s turbulent atmosphere for at least 300 years. How can a storm persist for so long?

Jupiter or Earth?

Swirls in Jupiter’s atmosphere and in Earth’s Baltic Sea look a lot alike. That’s because the motion of fluids on both planets are governed by same laws of physics.

Storms on Uranus and Neptune seen by Hubble.

New Hubble images show storms on Uranus and Neptune

Uranus and Neptune – the ice giants of the solar system – are distant worlds last visited by the Voyager 2 spacecraft in the late 1980s. But the Hubble Space Telescope is still keeping an eye on them and their dynamic atmospheres.

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Cool! Watch swirling storm on Jupiter

Watch a giant, spiraling storm in Jupiter’s southern hemisphere in this animation, made from images taken by the Juno spacecraft.

Awesome new Jupiter close-up

This new Juno spacecraft image shows magnificent swirling clouds in Jupiter’s dynamic atmosphere. The craft was about 4,400 miles (7,000 km) from the planet’s cloud tops on October 29, over about 40 degrees north.