Sunday, 21 July, 2019

Scientists find ‘source of methane on Mars

Scientists believe Curiosity Rover may have captured images of mushrooms Scientists uncover potential source of methane on Mars
Sandra Phillips | 03 April, 2019, 19:12

On Monday, scientists published their findings about the first independent confirmation about methane on Mars in the Nature Geoscience journal. There's a very good chance that the methane is generated geologically, and this is what this new paper also suggests.

By cross-referencing readings from Mars Express and Curiosity, they determined that the methane originated about 300 miles east of the Gale Crater, in a region known as Aeolis Mensae. Since then, it has found evidence of seasonal variations in methane, with levels of the gas rising and falling with the Martian summers and winters.

Despite the fact that much of Earth's methane is produced biologically, biological sources for Mars' methane were always unlikely.

"In general we did not detect any methane, aside from one definite detection of about 15 parts per billion by volume of methane in the atmosphere, which turned out to be a day after Curiosity reported a spike of about six parts per billion", says Marco Giuranna, principal investigator for the PFS. This was a significant finding - methane has been periodically detected on Mars at various points, but the gas has always vanished thereafter.

Despite some speculation over methane on Mars, a group of scientists chose to conduct an independent investigation to see if the gas might exist on the Red Planet.

Analysing the isotopic signature or atomic "strain" of carbon in the methane may help scientists determine whether or not the gas is sign of life.

Cristiano Ronaldo poses in just shorts after grueling swimming session
In the opening minute, Donnarumma passed straight to Sampdoria forward Gregoire Defrel, who scored easily. Kean's form gives Allegri more options ahead of his side's Champions League quarterfinal against Ajax .

Brent nears $70 as oil prices rise for fourth day
Six analysts polled by Reuters estimated, on average, that crude stocks fell by 1.2 million barrels in the week to March 29. They earlier reached $69.96 - the highest since November 12, when they last traded above $70.

SBTG is working on a special collaboration with HBO’s Game of Thrones
Williams spoke with Cosmopolitan back in July 2015, revealing that Game of Thrones author George R.R. Of course, Game of Thrones releases more than just the official "season" posters each year.

That detection happened on June 16, 2013, in the atmosphere above Mars' Gale Crater.

The initial discovery of the methane emission by the Curiosity rover in June 2013 had been questioned by some experts.

At the time of the Curiosity detection, it was speculated that the methane originated north of the rover, because the prevailing winds were southward, and that the release likely occurred inside the crater.

"That methane could be released episodically along faults that break through the permafrost due to partial melting of ice, gas pressure buildup induced by gas accumulation during migration, or stresses due to planetary adjustments or local meteorite impact", the scientists said in the study.

"Our results support the idea that methane release on Mars might be characterized by small, transient geological events rather than a constantly replenishing global presence, but we also need to understand better how methane is removed from the atmosphere, and how to reconcile the Mars Express data with results from other missions", adds co-author Frank Daerden from the Royal Belgian Institute for Space Aeronomy in Brussels. "Let's just say it will make for an interesting discussion in the community as we seek to resolve the observations from existing and new measurements of methane on Mars".

The ExoMars Trace Gas Orbiter, which is created to make a detailed inventory of the Martian atmosphere, was launched in 2016. This area of the Red Planet, which is dubbed Aeolis Mensae, has numerous geological faults that might have broken permafrost and released previously trapped methane.

Recommended

Suspect Arrested In Five Points Slaying Suspect Arrested In Five Points Slaying Police said turkey hunters found Josephson's body in a rural area near where the suspect once lived. This undated photo provided by the Columbia Police Department shows Nathaniel David Rowland .

Border shutdown? How US consumers could be impacted Border shutdown? How US consumers could be impacted Many were being diverted from official ports, leading to slowdowns in processing arriving visitors and commercial vehicles. It has threatened to close border crossings between Mexico and the United States.

‘Joker’ Trailer: Joaquin Phoenix’s Ultradark Villain Surfaces Retro-Style At CinemaCon ‘Joker’ Trailer: Joaquin Phoenix’s Ultradark Villain Surfaces Retro-Style At CinemaCon Additionally, in the caption, Phillips reveals that a teaser trailer for the forthcoming film is set to release tomorrow. In the footage, Joaquin Phoenix's Arthur Fleck is said to be visiting a social worker who cares for him at the facility.

'No more slip-ups for Manchester United in top-four race' 'No more slip-ups for Manchester United in top-four race' I thought the lads played well today - we created chances, with 10 men as well, they scored with their first chance after the sending off.

Steven Adams, Thunder team-mates and fans revel in Russell Westbrook's hot display Steven Adams, Thunder team-mates and fans revel in Russell Westbrook's hot display Thunder: Thunder centre Steven Adams briefly left the game before halftime after being fouled by Moe Wagner. It also put Westbrook on track again of closing in on a third straight season averaging a triple-double.

Aaron Ramsey and Alexandre Lacazette send Gunners third Aaron Ramsey and Alexandre Lacazette send Gunners third "Today, for me, is an important victory and it's important to take this confidence and this position on the table". Aaron Ramsey scored the opener before going off in the 67th minute with what Emery described as a "small injury".

French and Irish leaders meet in Paris to discuss Brexit French and Irish leaders meet in Paris to discuss Brexit He said the European Union would need to seriously consider how to respond to any request from the United Kingdom for a longer extension, in order to avoid leaving with no deal on 12 April.

Theresa May hints at election as Brexit votes go before Parliament Theresa May hints at election as Brexit votes go before Parliament The first motion, calling for the government to negotiate a permanent customs union with the EU, was defeated by 276 votes to 273. Earlier, Mr Barnier said: "No deal was never our desire or intended scenario but the European Union 27 is now prepared".

Nipsey Hussle: police detain suspect in rapper's shooting Nipsey Hussle: police detain suspect in rapper's shooting Moore told reporters at a news conference televised live that he was certain Holder was watching and urged him to surrender. The shooting Sunday also wounded two other people outside Marathon clothing store that Hussle owned.

Vietnam woman in N.Korean murder case gets 40 months Vietnam woman in N.Korean murder case gets 40 months Kim Jong Nam fell out of favor some two decades ago and lived in self-imposed exile in the Chinese-controled territory of Macau. The pair, who claimed they were tricked into carrying out the killing, were put on trial facing a murder charge.

Sanders Pulls in $18 million in First Quarter of Presidential Campaign Sanders Pulls in $18 million in First Quarter of Presidential Campaign The average age for Sanders's donors was 39-years-old, the campaign said , and almost all donations raised were made online. Beto O'Rourke of Texas likely poses the most serious fundraising challenge to Sanders.

Japan names era for incoming emperor Naruhito Japan names era for incoming emperor Naruhito The imperial era is often used to bookmark a particular period in time, reflecting the overall mood of the population. The new name is expected to embody Japanese ideals and aspirations, while also being easy to read and write.

Roger Federer lifts 101st title by winning Miami Open Roger Federer lifts 101st title by winning Miami Open Federer gained control in the match, as a break in the first game sapped Isner's confidence. 'Congrats to Roger. Isner's spirit was crushed after he dropped the first set in only 23 minutes.

Odell Beckham thankful for time with Giants, but won't look back Odell Beckham thankful for time with Giants, but won't look back Of course, this isn't the worst thing OBJ has ever done, but it's just another thing on the laundry list of weird stuff that he's done or said.

Mourners injured in stampede at vigil for slain rapper Nipsey Hussle Mourners injured in stampede at vigil for slain rapper Nipsey Hussle Los Angeles police Chief Michel Moore has called on the suspect in the killing of rapper Nipsey Hussle to surrender. Hussle had been due to sit down with the LAPD in the coming weeks to discuss gang violence and how to prevent it.