Mars: Perseverance rover made oxygen on the red planet

This is a historic feat that NASA scientists achieved through the Perseverance rover: the robot transformed carbon dioxide from the atmosphere of Mars to make oxygen.

After the first flight of a human craft on Mars, the first attempt to convert carbon dioxide into oxygen on the red planet. The mission of the Perseverance rover is, for the moment, a great success. On April 20, NASA succeeded in converting CO2 into oxygen on Mars, thanks to the Perseverance robot  The space agency now hopes that this experience will serve to prepare the ground for an exploration of the red planet by humans. 

This device used by the robot could facilitate space exploration, producing oxygen for astronauts , without having to carry oxygen cylinders from Earth. Oxygen is also used to propel rockets into space, so it is a key component for all space travel.

This experiment was carried out with a Moxie box (Mars Oxygen In-Situ Resource Utilization Experiment), located at the front of the rover. This box uses electricity and chemistry to split CO2 molecules , thereby separating oxygen from carbon monoxide. 

In this first test, Moxie produced five grams of oxygen , enough for an astronaut to breathe for 10 minutes if he maintains normal activity. After this test, NASA engineers will multiply the experiments to try to produce more oxygen and really master this new technology. According to engineers’ calculations, Moxie could produce up to 10 grams of oxygen per hour .

The box is about the size of a 17 kilogram car battery and is coated with a thin layer of gold, to withstand temperatures up to 800 degrees Celsius .

NASA is already thinking about future applications of such technology. With a one-ton Moxie, a rocket could get the 25 tons of oxygen it needs to take off from Mars. 

The future American president will travel faster than sound.

The start-up Exodus, which signed a contract with the US Air Force, could equip the presidency with a flamboyant supersonic plane in the 2030s.

The future American president will travel faster than sound. At Mach 1.8 precisely, or 2222 km / h. The US Air Force signed contracts last September with start-ups to develop supersonic transport planes for the US federal administration.Among them, the Californian start-up Exosonic which is one of those who will perhaps have the honor of flying the future American president. 

The concept of the supersonic jet impressed and received the front of the Presidential and Executive Airlift Directorate which is in charge of the presidential fleet known as « Air Force One » (the term in fact refers to all the planes in which are the president).Since 1990, this presidential fleet has consisted of two refitted Boeing 747-200B aircraft. But by 2024, two new models (the most recent 747-8) are expected to come into operation. Perhaps these will be the last subsonic models in the fleet.

Because by 2030, the first supersonics could come into operation. CNN thus unveils the model of the start-up Exodus, which could transport the future president or vice-president of the United States in 10 years.

Supersonics without boom

It’s a rather small 31-passenger model that’s a derivative of the 70-seat commercial airliner developed by the start-up. It would be a « low-boom » supersonic, an aircraft in which travelers « fly at supersonic speeds without generating disturbing booms for those on the ground, » said a spokesperson for the Army Materiel Command. ‘air at .

« With this concept, we plan to implement new technologies that are not available today or that you do not see (yet) on commercial or business aircraft », explains to CNN Stephanie Chahan, in charge of interior design at Exosonic.

Courtesy Exosonic/CNN © Exosonic

The start-up thus offered CNN a virtual tour of the interior of the project which will be presented to the US Air Force.The main cabin has 20 business class seats and two galleys.
« The design of the cabin was inspired by the colors of the American executive power, its mission and its values, as well as by the peregrine falcon, known for its speed and both for its movement and for its beauty, » explains the designer. .

Courtesy Exosonic/CNN © Exosonic

The aircraft would also have two private suites including meeting rooms, secure videoconferencing room with rotating leather armchairs and light wood frame.

Courtesy Exosonic/CNN © Exosonic

According to its designer, the device would have a range of 5,000 nautical miles, or more than 9,200 km. Using noise attenuation technologies, it could fly over populated land at speeds greater than Mach 1.Other even more ambitious projects have received an investment from the US Air Force. like that of Hermeus Corporation based in Atlanta which is developing a hypersonic model (Mach 5) that would allow the American president to reach Europe in just 90 minutes. The start-up has already developed its engine, which it has successfully tested.

Source BFM

Donald Trump will return to social networks … by creating his own platform

Donald Trump will return to social networks within two to three months with his own platform

The former US president was banned from Twitter in January after his supporters stormed the Capitol

The story does not say, at this time, whether messages will only appear in capital letters. Banned from Twitter since January, Donald Trump will return to social networks within two to three months « with his own platform, » said an adviser to the former president of the United States on Sunday.

« I think we will see President Trump back on social networks in two or three months, » said Jason Miller on the Fox News channel, without providing further details on the contours of this « platform », referring only to many meetings at Mar-a-Lago, the Republican billionaire’s Florida home.

@realDonaldTrump and its 88 million subscribers

“It’s not just a company that approached the president, there are a lot of companies,” and “this new platform will be something big, everyone wants it. It will bring millions and millions, tens of millions of subscribers to this new platform, ”he added.

The ex-president, who left the White House on January 20 after being defeated by Democrat Joe Biden in the November election, has also been temporarily or permanently banned by most other major social networks or platforms internet including Facebook, Instagram, Youtube or Snapchat.

Carter, Clinton, Bush and Obama call on Americans to get vaccinated

The four former heads of state underline the importance of the vaccine, with personal anecdotes to support it. A big absentee: Donald Trump.

Former Presidents Bill Clinton, George W. Bush, and Barack Obama,

Four former US presidents and one message: get vaccinated. In a video released on Thursday titled « It depends on you. » Jimmy Carter, George W. Bush, Bill Clinton, Barack Obama stress the importance of the vaccine, supporting personal anecdotes.

« This vaccine is synonymous with hope », underlines Barack Obama in front of the camera. “They will protect you and protect those you love. « I want to go back to work and I want to be able to move, » says Bill Clinton.

George W. Bush says he is « impatient » to find « a full stadium » to cheer on his Texas Rangers baseball team. « To overcome this pandemic, it is important that our fellow citizens get vaccinated, » he insists.null

Two major absentees in this initiative which brings together all the ex-presidents still alive: Donald and Melania Trump. The latter were vaccinated in January, a few weeks before their departure from the White House. But the information was not revealed by their relatives until several weeks later.

United States: Joe Biden tackles the death penalty

The US president could ask the Department of Justice to stop scheduling new executions. Before an abolition at the federal level?

Joe Biden is the first sitting president to speak publicly against the death penalty, a sentence still in effect across the Atlantic. Barely installed in the White House, the Democrat would have discussed the possibility of asking the Department of Justice to stop the programming of new executions . 

This information remains confidential, and no official announcement is planned – White House spokeswoman Jen Psaki assured it. If this measure were to be confirmed, it will certainly push supporters of the abolition of the death penalty to lift the pressure they exert on  Joe Biden . But they will quickly want the US president to go further by closing, for example, the death row that belongs to the federal government, located in Terre Haute, Indiana. And why not, that he abolish the death penalty altogether  from  American laws.

The position of the 46th American president contrasts with that of his predecessor. Throughout his tenure, Donald Trump  has been a staunch supporter of capital punishment , and everything has escalated over the past six months. 13 people were thus executed by the federal justice – unheard of in 120 years. The former president even appeared to hasten the executions  as his departure from the White House arrived  . The last execution took place just four days before Joe Biden was inaugurated president. Americans are therefore very aware of the issue.   

A divisive decision

One situation particularly shocked the Americans: it was prisoners suffering from mental illnesses who were executed. It therefore seems natural that Joe Biden wants to return to the practice of the Obama era – the latter had unofficially prohibited executions from 2014. But he did not dare to go all the way, which allowed Donald Trump to enforce sentences. 

Joe Biden could, however, attract the wrath of many Republicans, in favor of capital punishment. And even some members of his own camp might blame him, believing it to be political suicide . Not to mention that this decision would save some controversial criminals, such as Dylann Roof, a white supremacist who  killed nine black parishioners  who attended a small church in South Carolina. It might be difficult for Joe Biden to explain to the families of the victims why the murderer of their loved ones must not die. 

Towards an abolition of the death penalty at the federal level?

Supporters of the death penalty are declining – they now represent only half of Americans. But many still want to keep the possibility of sentencing the perpetrators of terrorist attacks to death – the author of the Boston Marathon bombs, moreover, was found guilty and sentenced to death by his jury. Another court commuted the sentence – but the Trump administration has appealed. The Biden administration will soon have to decide whether to pursue this appeal, or whether to accept this sentencing change. 

The abolition of the death penalty at the federal level is in any case a campaign promise of candidate Biden. He didn’t give a lot of details though, remaining very factual. Presumably he is feeling a little guilty and could reallyunravel the laws around the death penalty – to which he nevertheless contributed as a senator. In 1994, it was he who proposed to expand the range of federal crimes punishable by capital punishment. Supporters of ending the death penalty know he has an Achilles heel and they are unlikely to let go until they get a guarantee. 

Source : RTL

United States: Joe Biden’s tenure begins with popularity Trump has never seen

the new president of the United States enjoys a popularity rating that his predecessor Donald Trump never achieved

Eight days after  entering the White House , the new President of the United States enjoys a popularity rating that his predecessor Donald Trump has never achieved in four years in office, according to a poll released Wednesday by the University of Monmouth.

The survey indicates that the 46th Democratic president drains 54% of favorable opinions in the country, against 30% of dissatisfied and 16% of undecided, a rate « higher than at any time of the mandate of Donald Trump “, According to this survey conducted between January 21 and 24 on 809 people questioned.

A Gallup Institute survey shortly before the inauguration noted that the Republican left the White House with only 34% favorable opinions, a historic low, after starting his presidency with 45% satisfied and reaching 49% early 2020.

More kindness for Joe Biden

Other polls indicate that Joe Biden enjoyed good popularity in the early days of his mandate: 56% for Morning Consult, 63% for Hill-HarrisX.

But Monmouth, like other surveys, points out that the president’s supporters and opponents are deeply divided based on their political views. He enjoys a 90% approval rating among Democrats, compared to just 15% of Republicans and 47% of Independents.

« Generally speaking, there seems to be more benevolence for Joe Biden than there was for Donald Trump but she really follows partisan lines as more people currently identify as Democrats than Republicans » , explained the director of the University’s polling institute, Patrick Murray.

Donald Trump was the first president not to have a “honeymoon” with Americans at the start of his term, according to, with an average popularity of 41.4% over the first six months in office, far from Barack Obama (60%) or George W. Bush (53.9%) in their first half year in office.

Source: Le monde

Investiture of Joe Biden: imminent departure of the White House for Donald Trump

INVESTITURE – D-Day for Joe Biden: the new American president is sworn in this Wednesday, January 20 at noon local time . Donald Trump, whose departure is imminent, has granted his presidential pardon to 73 people before leaving the White House. 


The future ex-tenant of the Oval Office has already packed his bags and will leave the White House at 8 am aboard the presidential helicopter. Head to Andrews Air Force Base, where a military ceremony awaits him. Donald Trump will then travel for the last time aboard Air Force 1. He is due to land in Florida  when the new president-elect Joe Biden will be sworn in at the foot of the Capitol. The Republican billionaire will return to his residence in Mar-a-Lago, where a moving truck was seen last Monday.

On Biden’s inauguration day, Trump would still like to take advantage of Air Force One

On January 20, an hour before Joe Biden’s inauguration, Donald Trump is due to fly to Florida aboard the presidential plane.

Illustrative photo of Donald Trump boarding Air Force One in Florida on December 31, 2020. 

UNITED STATES – Until the end, he intends to take advantage of the advantages of the presidency. Donald Trump, who will not attend Joe Biden’s nomination on Wednesday, January 20, is expected to use presidential Air Force One an hour before his successor’s swearing-in to fly to Florida. 

According to CBS , Donald Trump is expected to land in West Palm Beach, Florida at 11 a.m. Wednesday morning, an hour before he is officially President of the United States. 

The Bloomberg site also mentions a final departure ceremony at 8 a.m. on the Andrews military base in Maryland, where the two planes used by the presidency are stationed. Invitations were reportedly sent to a few « supporters, including former members of his administration, » Bloomberg reports. No details on the content of this ceremony have filtered.

Traditionally, former presidents leave the White House on their own. 

The White House has not confirmed the information, which does not appear in the schedule – laconic for more than a week – of the Republican. On condition of anonymity, an official source told CBS that “this could always change”.  

At 12 noon (Washington time), Donald Trump will be officially stripped of his title of “commander-in-chief of the armies” and will therefore no longer have access to the presidential planes.

Trump, the great absentee of the last few days

Officially a resident of Florida, Donald Trump will undoubtedly spend a few days in his hotel in Mar-a-Lago. The roads leading to the establishment will also be closed on January 20 and for several days. “Beyond that, we do not envisage any closures linked to the presence of a former president,” said local police.

and then? Difficult to say, since the speeches of Donald Trump – deprived of his favorite communication platforms – have become extremely rare. But the idea of a candidacy in 2024 is gaining ground – on condition, however, that the second impeachment procedure launched against him ends in failure. 

Meanwhile, in a White House that is gradually emptying, Vice President Mike Pence appears every day a little more like the man in charge.

On Thursday, he congratulated the future vice-president Kamala Harris by phone, a source familiar with the matter told AFP on Friday. It was their first exchange since their fall debate in the heart of the campaign. He also planned to participate in the inauguration ceremony, like former presidents Barack Obama, George W. Bush and Bill Clinton. 

Source: HuffPost with AFP

United States:Actor Arnold Schwarzenegger wields Conan’s sword against Trump

Screenshot of video posted by Arnold Schwarzenegger.
Screenshot of video posted by Arnold Schwarzenegger. © Twitter

In the United States, a video posted this Sunday by Arnold Schwarzenegger has been around the internet. The former Republican governor of California denounces the attack on the Capitol, criticizes Donald Trump and calls to unite behind Joe Biden.

Did the Trump family party after the riots on Capitol Hill?

On his Facebook account, Donald Trump Junior shared a video showing the behind the scenes of the preparation of Donald Trump's speech on January 6.
On his Facebook account, Donald Trump Junior shared a video showing the behind the scenes of the preparation of Donald Trump’s speech on January 6. © Facebook Donald Trump Jr

Videos posted on social networks claim that Donald Trump and his family celebrated the January 6 riots on Capitol Hill. In the footage, the US President is seen stepping out into a large tent, looking at monitors while music blares, and family members dance. Except that these images were filmed several hours before the start of the clashes.