Wednesday, 14 November, 2018

Massive liquid water lake found on Mars, raising hopes of Martian life

Scientists Detect Liquid Lake on Mars Massive liquid water lake found on Mars, raising hopes of Martian life
Grady Vargas | 26 July, 2018, 15:44

What they believe to be a lake sits under the planet's south polar ice cap, and is about 20km across.

"What we tend to think here on Earth is that if there is liquid water, there is a good chance for life". Clifford's models suggest huge amounts of liquid water could still be hidden in the planet's depths, providing a globe-spanning refuge for any life that retreated from the ever-more inhospitable surface long ago.

If confirmed, this would be the most significant body of liquid water found on Mars to date.

Mars Express' MARSIS radar instrument made 29 dedicated observations in a 200-kilometer-square area near Mars' south pole between 2012 and 2015, indicated on the map at left.

Since water's permittivity is much higher than that of rock or ice, the scientists concluded that they must have found a liquid lake beneath Mars' southern ice cap.

Before we get too excited about drilling 1.5km into the poles of Mars to look for ice, however, we'll probably want independent confirmation that this high-reflectivity region shows up consistently and behaves as if it's liquid water. Further data indicated that the pocket of material is most likely a cavern, one with the right temperature and pressure to hold liquid water.

An underground salt-laden lake has been found on Mars, according to Italian researchers.

But it is quite likely that this body of water isn't a big lake. But there's little heat flowing from the geologically dead interior of Mars, and under the planet's weak gravity, the weight of 1.5 kilometers of ice does not lower the melting point by much.

Even if this new discovery is validated, experts are lukewarm about whether this body of water would be suitable for life.

More news: England men beat Samoa in World Cup Sevens opener
More news: President Trump to Iran's Rouhani: Never Ever Threaten the US Again
More news: Here's what archaeologists found in the huge granite coffin discovered in Egypt

"It's plausible that the water may be an extremely cold, concentrated brine, which would be pretty challenging for life", explained Dr Claire Cousins, an astrobiologist from the University of St Andrews, UK. Part of the problem is that we do not know how cold this water discovered by MARSIS is.

While its existence provides a tantalising prospect for those interested in the possibility of past or present life on Mars, the lake's characteristics must first be verified by further research. Conveniently, there's another radar instrument called SHARAD orbiting the Red Planet on the Mars Reconnaissance Orbiter.

The publication states that the find is so large that it resembles subglacial lakes on Earth.

Since humans could see through telescopes across space, Mars has been the favorite abode of imaginary life, the backyard just over the fence where astronomer Percival Lowell imagined he could see canals and even cities webbing the orange globe.

Then, they were reflected back to the radar aboard the Mars Express, providing geological information on the portion of planet under examination.

"Whether similar scenarios are occurring on Mars remain to be experimentally established, but this finding of potential liquid water beneath the surface of Mars opens up fascinating areas of space exploration".

Being able to access water sources could help humans survive on a future crewed mission to Earth's neighbouring planet.

For example, they considered that there could be a carbon dioxide or water ice layer within the zone that could affect the reflections, but this was rejected "because of the very specific and unlikely physical conditions required, or because they do not cause sufficiently strong basal reflections", the researchers wrote Science paper stated.

Recommended

  • House Republicans seek impeachment of DOJ’s Rosenstein

    House Republicans seek impeachment of DOJ’s Rosenstein

    Meadows and Jim Jordan filed the articles of impeachment along with several other members of Congress. The House passed a resolution last month demanding full compliance with the subpoenas.
    Daily Rain Chances Continue This Week

    Daily Rain Chances Continue This Week

    Additional warnings are possible at any time as more showers and downpours ride the tropical rain train up the East Coast. Tuesday , southwest onshore wind will again create breezy conditions throughout the day, especially along the coast.
    People must come out to vote in historic election, urges Imran

    People must come out to vote in historic election, urges Imran

    Durrani is contesting for NA-35 under the Muttahida Majlise-e-Amal (MMA) banner against Pakistan Tehreek-e-Insaf chief Imran Khan. Almost 106 million Pakistanis, including more than 19 million new voters, will be eligible to cast their ballots on Wednesday.
  • Trump, EU trade deal averts trade war, tariffs

    Trump, EU trade deal averts trade war, tariffs

    The financial relief would not authorize any new money and thus not need approval from Congress, the New York Times reported. Meanwhile, both Washington and Brussels will "hold off on other tariffs" while the talks are under way, Juncker said.
    Facebook (FB): What the Hell Just Happened to the Stock?

    Facebook (FB): What the Hell Just Happened to the Stock?

    Analyst Ross Sandler with Barclays asked if revenue growth was set to drop to "around 20% by the fourth quarter of this year". Facebook attracted about 20% of digital advertising spending in the U.S. a year ago , according to research firm eMarketer .
    Media reports say singer Demi Lovato stable after suspected overdose

    Media reports say singer Demi Lovato stable after suspected overdose

    Singer Demi Lovato has been hospitalized after suffering an apparent drug overdose, a source close to her family tells CNN. A representative for Lovato released a statement Tuesday evening, saying that she was awake and recovering with family.
  • Liverpool spent big after we raised the bar, says Manchester City boss

    Liverpool spent big after we raised the bar, says Manchester City boss

    The records we took was a outcome of what we've done every single day'. He said: "Every club, do what they believe, and I understand it".
    Toronto shooting: 2 victims and gunman dead, 12 wounded

    Toronto shooting: 2 victims and gunman dead, 12 wounded

    Tina Papachristos, who has called the neighbourhood home since childhood, said she's struggling to process what happened. Glenn Russell told CNN the shooting happened outside a restaurant on the corner of Logan and Danforth Avenues.
    4-Day Heat Wave Kicks Off In SoCal With Record-Breaking Heat

    4-Day Heat Wave Kicks Off In SoCal With Record-Breaking Heat

    Exertion during a heat wave can lead to severe dehydration, heat cramps, heat exhaustion and heat stroke, county officials warned. Forecasters also stressed that children, pets and seniors should not be left unattended in vehicles under any circumstances.
  • Avenatti says Cohen has more Trump tapes

    Avenatti says Cohen has more Trump tapes

    President Donald Trump's personal lawyer Michael Cohen arrives at his hotel in New York City, U.S., May 9, 2018. At the time, a Trump spokeswoman said his campaign had "no knowledge of any of this".
    Singer Demi Lovato hospitalized following apparent overdose

    Singer Demi Lovato hospitalized following apparent overdose

    Many are keeping Demi Lovato close to their hearts. "Our thoughts go out to Demi and her family". The terms sat at the top of Twitter's list of trending topics in the hours following the news.
    Turkish FA president Demiroren defends Arsenal star Ozil

    Turkish FA president Demiroren defends Arsenal star Ozil

    Fellow players have their say . "I kiss him on his eyes", Erdogan said, using a Turkish term of affection for a loved one or friend.

Maddow doesn't relent on White House transcript - 7/25/2018 11:05:47 PM Maddow doesn't relent on White House transcript - 7/25/2018 11:05:47 PM White House national security adviser John Bolton then issued a statement postponing the follow-up Putin summit until next year. White House press secretary Sarah Sanders tweeted that Trump asked Bolton to arrange for the meeting to take place in the fall.

Secret recording of Trump-Cohen on payments to adult-film actress emerges Secret recording of Trump-Cohen on payments to adult-film actress emerges Giuliani contested Davis's interpretation and released the Trump team's version of the transcript, which contradicts Davis. But what's new and especially threatening to Trump's presidency is Cohen's material, of which there seems to be plenty.

Check your tickets: Mega Millions jackpot winning numbers are in Check your tickets: Mega Millions jackpot winning numbers are in The victor can either take the entire $522 million in installments or an immediate lump sum of $308 million. Eight other winners in the July 24 drawing took home at least $1 million each, according to Mega Millions.

BRICS Emerging Economies Meet In Wake Of US Trade War BRICS Emerging Economies Meet In Wake Of US Trade War In the past week, various meetings held by the BRICS forums have been taking place in some parts of the country: youth, unions and civil society.

Ministers are still being persuaded Chequers deal is good, says Brexit secretary Ministers are still being persuaded Chequers deal is good, says Brexit secretary Back in March, UK Prime Minister Theresa May revealed that the UK would be willing to remain part of the EMA after Brexit .

Chicago Cubs deliver signed baseball after fan steals foul ball from child Chicago Cubs deliver signed baseball after fan steals foul ball from child Chicago Cubs' Javier Baez saved the day for one heartbroken youngster after they saw off St Louis Cardinals. "All is well. The man who grabbed the ball on the widely seen video had actually already helped the little boy get a ball earlier.

Barcelona snatch Brazilian Malcom from under Roma's nose Barcelona snatch Brazilian Malcom from under Roma's nose Barcelona have already announced the signing of Malcom even though the player is only going to have his medical today. Malcom , following deals for Arthur Melo and Clement Lenglet, becomes Barca's third signing of the summer.

North Korea's provocation level has dimmed, US Commander says North Korea's provocation level has dimmed, US Commander says North Korea has begun dismantling a key facility used for missile testing, an analysis of new satellite imagery reveals. FILE - Shown in April, 2012 is North Korea's long-range rocket launch site "Sohae Satellite Launching Station".

Focus on Trump's meeting with European Commission President Juncker - Deutsche Bank Focus on Trump's meeting with European Commission President Juncker - Deutsche Bank It would be nice for it to turn around and go in the opposite direction, but in the end I don't know where it is going to end up. Officials explained that Labor Day remains the effective date for when the programs will begin operating.

Druze minister sent death threats over Jewish state law amid community protest Druze minister sent death threats over Jewish state law amid community protest Indeed, the ruckus over the brand-new law obscures the reality that there's not actually much new about it at all. He says "this clause is taken by the world to mean "Jewish-only neighborhoods and Arab minorities out".

Committee Executive: Dominic Raab Has Got It "Absolutely Right" Committee Executive: Dominic Raab Has Got It British Prime Minister Theresa May's Conservative Party is also deeply split over what Brexit policy to support. He told the parliamentary committee: "I think that would be a challenge, but one that I am up for".

Sky chief slams Tour haters, calls race's billing into doubt Sky chief slams Tour haters, calls race's billing into doubt Sky's domination for the fourth consecutive year could mean the team's sixth Tour crown from the past seven editions. Froome sits second in the general classification, 1 minute, 39 seconds behind Sky teammate Geraint Thomas .

Give us cash back, Tesla tells suppliers Give us cash back, Tesla tells suppliers Tesla in late June finally hit an important production target for the Model 3, its most accessibly priced electric auto . Musk, Tesla's co-founder and CEO, confirmed on Twitter that Tesla is asking for money from its suppliers.

North Korea said to be dismantling key parts of launch site North Korea said to be dismantling key parts of launch site The US-based monitoring group 38 North analysed images of the Sohae Satellite Launch Station, concluding that two key features are being dismantled.

Tekashi 6ix9ine flaunted cash, chains at strip club before robbery The gunman drove away with Hernandez still in the back auto , but he was able to jump out and run away, according to sources. The criminals eventually made their way into Tek's crib taking almost $1 million in jewelry and cash with his family inside.