First images of Ganymede as Juno sailed by

here, Jovian system

The first two images from NASA Juno’s June 7, 2021, flyby of Jupiter’s giant moon Ganymede have been received on Earth. The photos – one from the Jupiter orbiter’s JunoCam imager and the other from its Stellar Reference Unit star camera – show the surface in remarkable detail, including craters, clearly distinct dark and bright terrain, and long structural features possibly linked to tectonic faults.

“This is the closest any spacecraft has come to this mammoth moon in a generation,” said Juno Principal Investigator Scott Bolton of the Southwest Research Institute in San Antonio. “We are going to take our time before we draw any scientific conclusions, but until then we can simply marvel at this celestial wonder.

Using its green filter, the spacecraft’s JunoCam visible-light imager captured almost an entire side of the water-ice-encrusted moon. Later, when versions of the same image come down incorporating the camera’s red and blue filters, imaging experts will be able to provide a color portrait of Ganymede. Image resolution is about 0.6 miles (1 kilometer) per pixel.

In addition, Juno’s Stellar Reference Unit, a navigation camera that keeps the spacecraft on course, provided a black-and-white picture of Ganymede’s dark side (the side opposite the Sun) bathed in dim light scattered off Jupiter. Image resolution is between 0.37 to 0.56 miles (600 to 900 meters) per pixel.

“The conditions in which we collected the dark side image of Ganymede were ideal for a low-light camera like our Stellar Reference Unit,” said Heidi Becker, Juno’s radiation monitoring lead at JPL. “So this is a different part of the surface than seen by JunoCam in direct sunlight. It will be fun to see what the two teams can piece together.”

The spacecraft will send more images from its Ganymede flyby in the coming days, with JunoCam’s raw images being made available here.

The solar-powered spacecraft’s encounter with the Jovian moon is expected to yield insights into its composition, ionosphere, magnetosphere, and ice shell while also providing measurements of the radiation environment that will benefit future missions to the Jovian system.

Internet Explorer Channel Network
News Related


Highlights! Cooper Knocks Out Magomedkerimov To Win $1 Million PFL Check

Ray Cooper III Shuts Down Magomed!#PFLChampionship — PFL (@PFLMMA) October 28, 2021 © Cooper Neill Ray Cooper III had to work for it, but “Bradda Boy” eventually pulled out ... Read more »

Crew-3 astronauts launch to Space Station alongside microgravity research

NASA’s SpaceX Crew-3 mission is set to launch four astronauts to the International Space Station aboard a SpaceX Crew Dragon on Sunday, Oct. 31. The mission includes three NASA astronauts ... Read more »

Getting up to speed on the proton

Scientists develop groundbreaking theory for calculating what’s happening inside a proton travelling at the speed of light. For more than 2,000 years, scientists thought the atom was the smallest particle ... Read more »

Better climate data through ten times more accurate satellite navigation

Satellites provide important data on climate and the environment every day. According to initial tests, new software from RUAG Space can determine the real-time position of a satellite in space ... Read more »

Need for Larger Space Telescope inspires lightweight flexible holographic lens

Inspired by a concept for discovering exoplanets with a giant space telescope, a team of researchers is developing holographic lenses that render visible and infrared starlight into either a focused ... Read more »

SpaceX modernises Crew Dragon toilet after 2 faulty missions

Elon Musk’s SpaceX company has upgraded the toilet system on the Crew Dragon spacecraft after running into several problems during previous launches, media reported. “For Crew-3, we’ve fixed this problem ... Read more »

Verizon to use Amazon satellites for broadband Internet in rural areas

Verizon announced on Tuesday that it will use a satellite communications system that’s being put together by Amazon to expand broadband Internet access to rural areas of the United States. ... Read more »

Upgrading the Space Station's Cold Atom Lab with mixed reality

NASA’s Cold Atom Lab is a first-of-its-kind physics laboratory operating in Earth orbit. About the size of a mini-fridge, it hosts multiple experiments that explore the fundamental nature of atoms ... Read more »

Kennedy calls on NHL to make critical changes to help players like Beach

Editor’s note: The following story deals with sexual assault, and may be upsetting for some readers. If you or someone you know is in need of support, those in Canada ... Read more »

Pregnant women and seniors can soon exercise in Intramuros' open-air sites

Photo: Intramuros Administration Fully vaccinated members of the “vulnerable population”—senior citizens, pregnant women, persons with disability, and persons with health risks—can once again enjoy Intramuros’ fresh air and get their ... Read more »

Alec Baldwin shooting: Prosecutor says she was ‘shocked' and ‘completely astonished' at Rust death

© AP AP_21300611809582.jpg The Santa Fe County district attorney says she was “shocked” and “completely astonished” when she heard of the fatal shooting on the set of Alec Baldwin’s Rust ... Read more »

California high court won't hear Brad Pitt divorce appeal

© ASSOCIATED PRESS Jolie Pitt Divorce – ASSOCIATED PRESS The California Supreme Court on Wednesday refused to consider Brad Pitt s appeal of a court ruling that disqualified the judge ... Read more »

EU court tells Poland to pay €1m a day over judicial dispute

© REUTERS PRI207068464.jpg The European Union’s top court has ordered Poland to pay €1m (£845,000) a day over the country’s longstanding dispute with the bloc over its controversial “disciplinary chamber”. ... Read more »

Kyle Beach comes forward as John Doe in Blackhawks investigation

With courage to come forward and speak openly about his experience in 2010 with the Chicago Blackhawks, “John Doe” has revealed his identity. Kyle Beach, a first-round draft selection of ... Read more »

Weeks before Julius Jones set to die, appeals court pauses first Oklahoma executions in six years until 2022

© (Oklahoma Department of Corrections via AP, File) Julius Jones – (Oklahoma Department of Corrections via AP, File) A federal appeals court has ruled that Oklahoma can’t execute two men ... Read more »

Majority in Northern Ireland view Brexit protocol as a ‘positive', poll finds

© PA Archive Some freight companies see fall in revenue A majority of people in Northern Ireland now view the Brexit protocol governing Irish Sea trade as a positive for ... Read more »

For this old-car enthusiast, Porsche's new 911 Carrera GTS simply does everything right

In pre-congestion-charge London, I owned a brilliant Mini 1000, which was the best way to get from my place in Battersea to my girlfriend in Crouch End – nippy, fun, ... Read more »

West Ham 0-0 Man City: David Moyes' side continue surge with penalty shoot-out win in the Carabao Cup

© Getty Images WestHamvsManCity2710F West Ham United’s excellent week continued with a resolute display at home to Manchester City in the Carabao Cup before winning on penalties after a 0-0 ... Read more »

‘Save your species': UN enlists dinosaur to deliver warning of climate extinction

© UN Development Programme The prehistoric creature tells delegates the world is heading for disaster – UN Development Programme The United Nations is summoning an unusual “witness” to testify to ... Read more »

Cop26: Boris Johnson impersonator in Glasgow sets fire to boat to protest fossil fuel use

© PA Ocean Rebellion protestors set light to fake boat opposite the Cop26 conference venue – PA A climate campaigner from the organisation Ocean Rebellion dressed as Boris Johnson and ... Read more »

MI5 did not pass ‘highly relevant' intelligence to police before Manchester Arena bombing

© AFP via Getty MI5 had been receiving intelligence about Salman Abedi for years before the attack – AFP via Getty MI5 failed to pass on two “highly relevant” pieces ... Read more »

Bad night for European giants as Bayern Munich, Juventus and Barcelona handed humbling defeats

© AFP via Getty Images lewandowski bayern oct 2021 Bayern Munich were thrashed 5-0 by Borussia Monchengladbach as several giants of European football fell to defeats on Wednesday night. A ... Read more »

Texas man boasted online about food and family as children starved alongside skeletal remains of beaten brother

© Harris County Sheriff’s Office/Instagram Brian Coulter (pictured in his mugshot left) boasted about food on Instagram while allegedly starving his girlfriend’s children – Harris County Sheriff’s Office/Instagram The man ... Read more »

‘Opposite of what was needed': Sunak criticised for fuel duty freeze on eve of Cop26 summit

© PA The Institue for Fiscal Studies said it was the 12th year in a row that fuel duty has been frozen – PA Campaigners have criticised the government for scrapping a ... Read more »

Newcastle fan who collapsed during Tottenham game with cardiac arrest discharged from hospital

© PA Wire Medics were called to the emergency in the stands (Owen Humphreys/PA) – PA Wire The Newcastle fan who collapsed on the terraces during the club’s Premier League ... Read more »

Evening Standard hailed as Londoner of the Year at Press Awards

© Evening Standard abbiancamakoni.png The Evening Standard scooped an award for its work during the pandemic at the London Press Club awards. It won the Londoner of the Year accolade ... Read more »

Fight breaks out after Catholic priest orders maskless man to leave church in Washington

© KIRO 7 A viral video shows a fight in a church in Washington state that broke out after a maskless man was asked to leave – KIRO 7 A ... Read more »

Gordon Ramsay hits back at Strictly star daughter Tilly's fat-shaming and says ‘I'm very proud of her'

© PA Strictly Come Dancing 2021 Gordon Ramsey has backed his daughter Strictly Come Dancing star Tilly after a radio DJ fat-shamed her on his show. Radio host Steve Allen ... Read more »

Facebook sat by as Trump set off wave of hate speech, memos show

© Copyright 2020 The Associated Press. All rights reserved. In June 2020, as George Floyd protests convulsed the country, then-president Trump wrote in a Facebook post, ‘when the looting starts, ... Read more »

Trump mocked for being reduced to writing letter to editor in Wall Street Journal to rant about election

© Reuters ‘There is a tendency today to believe that something is revolutionary, that boundaries are being tested. Not so, where frauds are concerned’ – Reuters The Wall Street Journal ... Read more »

Lonely Planet names top 30 destinations for 2022

© Pete Seaward/Lonely Planet The tropical Cook Islands topped the countries list for 2022 – ©Pete Seaward/Lonely Planet Specialist travel publisher Lonely Planet has named its top places to go ... Read more »

Alec Baldwin shooting: Key questions left unanswered after press conference on Rust tragedy

© AP BALDWIN-MUERTE EN EL SET – AP Nearly a week after the fatal shooting on the set of the film Rust, several key questions remain unanswered, including who loaded ... Read more »

Internet obsessives scour Florida reserve for Laundrie clues showcasing possible ‘gator bones' on social media

© screengrab A water bottle with the same design as a bottle Gabby Petito carried was found by a TikTok user in the Carlton Reserve near the area where Brian ... Read more »

US issues the first passport with a gender neutral ‘X' designation

© Shutterstock / Evgenia Parajanian shutterstock_1886477905.jpg The United States has reached a milestone in inclusivity by issuing a passport designed with an “X” gender marking. It’s a great step forward ... Read more »

Forensic anthropologist examining Brian Laundrie's remains may have results by end of November

© Instagram Gabby Petito and Brian Laundrie – Instagram Steven Bertolino, the attorney representing the Laundrie family, said that the results of a forensic anthropologist’s examination of Brian Laundrie‘s remains ... Read more »

Anthropologist examining Brian Laundrie's remains may have results by end of November

© Instagram Gabby Petito and Brian Laundrie – Instagram Steven Bertolino, the attorney representing the Laundrie family, said that the results of a forensic anthropologist’s examination of Brian Laundrie‘s remains ... Read more »

United States issues first non-binary passport

© AP uspassportap.jpeg The United States has issued the first passport to allow people who do not identify as male or female to use an “X” gender designation. The US ... Read more »

Flooding warning as month's worth of rain forecast for parts of UK

© PA Archive Flooding stock The Met Office has warned of life-threatening flooding as it issued amber weather warnings for rain in north-west England and south-west Scotland Cumbria is being ... Read more »

Police charged in death of Black man shot 76 times in Atlanta

© CBS46 photojoiner_photo (15).jpeg Two law enforcement officers have been charged over the killing of a man in Atlanta who was shot 76 times during an arrest attempt. Jamarion Robinson, ... Read more »

‘You said you loved her.' Can a few questions help stop NC domestic violence killings?

Todra Thornton had finally relented to letting her best friend and her boyfriend stay at her house. “Come on, man, let me and Rico stay,” Erika Desiree Downey had pleaded ... Read more »
On you will find lots of free English exam practice materials to help you improve your English skills: grammar, listening, reading, writing, ielts, toeic