Jupiter moon Europa a prime candidate for life

15 May, 2018, 22:21 | Author: Tara Reeves
  • Jupiter moon Europa a prime candidate for life

"Given the evidence of plumes available so far, there is a good chance that those spacecraft may obtain direct measurements of plumes ejecting material from the subsurface ocean into space", said Jia.

Inspired by the Hubble images and discussions of planned missions to revisit Europa, Jia and his team dusted off the data from two instruments onboard Galileo, gathered during the spacecraft's 11 close passes around the moon.

Previous ultraviolet images from NASA's Hubble Space Telescope in 2012 suggested the presence of plumes, but this new analysis used data collected much closer to the source and is considered strong, corroborating support for plumes.

And there were. In data from the magnetometer and plasma wave instruments, Jia and his colleagues found evidence in one of the flybys that Galileo passed through a cloud of charged particles, particles that could be produced by a gusher of salty water.

The newly analyzed Galileo data provides "compelling independent evidence that there seems to be a plume on Europa", said study lead author Xianzhe Jia, an associate professor in the Department of Climate and Space Sciences and Engineering at the University of MI.

Gong retains shot put title in Shanghai Diamond League
The third of 14 legs in the IAAF Diamond League series will be held in Eugene, Oregon on Saturday, May 26. Mariya Lasitskene of Russian Federation earned her 38th consecutive win in the women's high jump.

"This one certainly stood out as very special", the study's lead author Xianzhe Jia said. It may be that the region is either geologically active or the surface ice is thin or even broken, and this would allow plumes to erupt. The particles that are spread by the plumes will be found in the atmosphere of Europa. There was a fair amount of suspicion of plumes from Europa's surface, but there was no hard evidence to back it up.

Slightly smaller than Earth's moon, Europa's ocean resides under an ice layer 15 to 25 kilometres thick, with an estimated depth of 60 to 150 kilometres. Researchers say that the data suggests that the probe flew through a plume in 1997 in the same spot where Hubble caught a glimpse of plumes in 2016. The new paper essentially confirms that, finding that in 1997, a now-retired spacecraft flew through a jet of liquid that upset the magnetic field and plasma around the moon.

Researchers have long believed that Europa is home to a vast saltwater ocean, trapped beneath a thick crust of ice, making the moon potentially habitable for life and a focus of upcoming robotic exploration. "It's unlikely that one of these plumes is going to throw a fish into space that's going to whack into Europa Clipper", Cynthia Phillips of NASA's Jet Propulsion Laboratory tells Drake.

That was until Xianzhe Jia, a planetary scientist at the University of MI, studied the ancient data and found that plumes did exist based on the unexplained fluctuations in magnetic waves on the moon's surface. The location of the plumes was close to where Galileo took its readings. "Much of what they talk about on Europa has all been speculation", Porco said. One is NASA's Europa Clipper mission, due to launch in the 2020s and at least orbit the moon and possibly send a lander down to the surface as well. "The data was already there, but we needed advanced technology to make sense of the observations", Jia said in a statement. Even if the water from Europa's icy seas comprises a massive number of additives, bringing the freezing temperatures lower than it's on Earth, it might still be warm enough to become liquid.

"If plumes exist and we can directly sample what's coming from the interior of Europa, then we can more easily get at whether Europa has the ingredients for life", said Robert Pappalardo, Europa Clipper project scientist. That's the big picture.

Recommended:

  • 19 dead in fighting between army and rebels — Myanmar military

    19 dead in fighting between army and rebels — Myanmar military

    Reverend Hkalam Samsun, chairman of the Kachin Baptist Convention, said the Kachin people were "disappointed" with Suu Kyi. But it's hard to say how they were killed during the fighting", said the TNLAA spokesman.
    Buy your future overlord: Creepy robot dog SpotMini up for sale soon

    Buy your future overlord: Creepy robot dog SpotMini up for sale soon

    Boston Dynamics' SpotMini was introduced late previous year and took the design of the company's "bigger brother" quadruped Spot. In any case, we're looking forward to seeing the SpotMini in the flesh (or its robotic equivalent).
    Levante ends Barcelona's unbeaten season

    Levante ends Barcelona's unbeaten season

    Barca hadn't conceded three times in any match this season, but let in five on this occasion. Luis Suarez converted a penalty to make it 5-4 in the 71st.
  • Suspected Golden State Killer charged with 4 more counts of murder

    Suspected Golden State Killer charged with 4 more counts of murder

    Ringwald recalled hearing about DeAngelo's arrest and being shaken by the series of crimes that haunted her as a child. They got lucky: a match with family members led them to identify and arrest Joseph James DeAngelo.
    Severe weather warnings for Maryland and Virginia Sunday night

    Severe weather warnings for Maryland and Virginia Sunday night

    Stay with News 12 New Jersey for the latest weather information, and download the News 12 app for on-the-go weather updates. Monday will see a 20 percent chance of showers and thunderstorms on a mostly cloudy day with a high of 80 and a low of 63.
    Record voter turnout sets up Karnataka election results for a photo finish

    Record voter turnout sets up Karnataka election results for a photo finish

    Meanwhile, Dasarahalli in Bengaluru Urban had the lowest voter turnout with only 48.03% of voters casting their vote. But analysts say that the party might be in for a rude shock as its aggressive Hindutva stance may backfire.
  • MP Board Class 10, Class 12 Result 2018 Today

    MP Board Class 10, Class 12 Result 2018 Today

    The girls performed better with 72.38% clearing the Class 12 exams past year , while the boys pass percentage was at 64.16. Madhya Pradesh Board of Secondary Education (MPBSE) will declare results of 10th and 12th at 10.30 am this morning.
    Pittsburgh Pirates, 5-11

    Pittsburgh Pirates, 5-11

    This weekend, he'll play at PNC Park as a visitor, when the San Francisco Giants face the Pittsburgh Pirates . He doesn't have a win in his past 12 road starts , with his last win coming last May 21 against Seattle.
    Chili's Bar & Grill reports customer data breach

    Chili's Bar & Grill reports customer data breach

    Brinker International, the owner off the restaurant chain, said Friday data was breached at undisclosed "certain" locations. We deeply value our relationships with our Guests and sincerely apologize to those who may have been affected.
  • Annual Law Enforcement Memorial Ceremony

    Annual Law Enforcement Memorial Ceremony

    The service will be held at the side entrance of the sheriff's office, located at 117 Justice Center Drive in Rogersville. Both numbers have decreased since 2016, in which a total of 118 officers were killed in the line-of-duty.
    On Mother's Day, Donald Trump Remembers His Mother Mary MacLeod

    On Mother's Day, Donald Trump Remembers His Mother Mary MacLeod

    During the interview, Trump said that he hadn't found the time to get Melania a gift for her birthday. As a mother myself, I know what goes into raising a child.
    Six in Pennsylvania sick from shell egg salmonella outbreak

    Six in Pennsylvania sick from shell egg salmonella outbreak

    The symptoms, which include diarrhea, fever and stomach cramps, take about 12-72 hours after exposure to take effect. A total of 11 people were hospitalized in relation to the outbreak, with no fatalities reported so far.


Popular

Falcons sign veteran DT McClain
Collins, a third-round pick in 2016, has been a starter on the defensive line for the last two years. This portion of the offseason is all about understanding what the Dallas Cowboys have "on paper".

Iran nuclear deal: Envoy starts diplomatic tour after U.S. withdrawal
The International Atomic Energy Agency (IAEA) has repeatedly confirmed that Tehran has been meeting its nuclear commitments fully. On Sunday, White House National Security Adviser John Bolton said sanctions on European firms were "possible".

Crystal Palace defender Tomkins: Zaha deserves our Player of the Year
When Zaha then broke and sent Andros Townsend through one-on-one with Foster, the winger slipped as he struck, sending his effort wide.

I won't hinder Rooney if he wants to leave Everton, insists Allardyce
We know everything about Wayne Rooney . "I'm comfortable with any player who wants to leave but let's get this clear. We've not been in any hard situations because we're two adults and we talk'.

Nawaz Sharif: Pakistan sent terrorists to India to execute 26/11 attacks
"This disclosure of Sharif would definitely embarrass Pakistan army and ISI on the global platform". Take the case of former dictator Pervez Musharraf's example, who instigated terrorism in Kashmir.

Ailing Goa CM Parrikar says he will return in few weeks
The BJP President also said that Parrikar was keen to know how the party had fared in Karnataka, which voted on Saturday. He said the BJP's "soul" lies in its booth workers who are the focal point of the party.

White House Goes Silent on Remark about McCain
Trump's nominee for C.I.A. director because of her past ties to an interrogation program that used torture on terrorist suspects. But instead, that was overcome by saturation cable TV coverage about Sadler's comment.

Storm System in Gulf has Tropical Potential
We will also continue to see a good coverage of scattered showers and storms through the rest of the week, including the weekend. The system could gain subtropical or tropical characteristics, says the NWS report, while it moves east the next few days.

China is conducting trials of an aircraft carrier of its own design
Both feature Soviet-design ski-jump bows rather than the catapult technology used for launching aircraft on US aircraft carriers. The US's 11 vessels are nuclear powered and have far superior technology, including catapult systems for launching aircraft.

Multiple Blasts Hit East Afghanistan City, at Least Six Killed
Earlier, he said the attack had been carried out by four attackers and that there had been two explosions. A public office in eastern Afghanistan came under an armed attack on Sunday, officials said.