This week’s new scientists have been largely dominated by the return of two Nasa Astronauts of International space stationwhose planned mission of eight days ended up lasting 286 days.
Astronauts Butch Wilmore and Suni Williams left the Cape Canaveral space station in Florida on June 5, 2024, but not long in the mission Helium leaksAs well as a number of other problems, have been discovered on their Boeing Starliner spacecraft.
Starliner had already undergone years of delays, and although it was suggested later that the pair would have been fine to go home to the suspicious shipThe risk for their safety was considered too large. As such, it was not until 5:57 p.m. Tuesday, March 18 that astronauts splashed near the Florida coastafter having harnessed an elevator on board a Spacex Dragon capsule.
Although a large part of the attention on them focuses on the duo “blocked” in space, it is not a feeling that the pair has shared. In a conversation with Anderson Cooper of CNN, they explained how the mission extensions are Sometimes part of the work.
“We are prepared, we are committed. This is what your human space flight program is: it is preparing for all the contingencies that we can design, and we are preparing for them,” Wilmore told Cooper. “We do not feel abandoned. We do not feel stuck. We do not feel blocked.”
In relation: Nasa Suni Williams and Butch Wilmore astronauts were swept away after the return of space. Here’s why it’s normal.
Mystères ancestors
In a study published on Tuesday, researchers presented a new method of modeling genomic data, called “Cobraa”, which allowed them to trace the evolution of modern humans (Homo sapiens).
They found that the ancestors of all modern humans separate from a mystery population 1.5 million years ago Then reconnected with them 300,000 years ago. This unknown population has contributed 20% of our DNA and can have stimulated the brain function of humans.
“The fact that we can rebuild the events of hundreds of thousands or millions of years just by looking at DNA today is surprising, and that tells us that our history is much richer and more complex than we imagined”, co-author of study Aylwyn scalllyA geneticist at Cambridge University, said in a statement.
Discover more archeology news
–Dog mechanics: a “good boy” of ancient Egypt which has a red tongue and “barking”
–European hunters fell in North Africa during the Stone Age, suggests old DNA
The little mysteries of life
Just like the mountains, the lakes on earth can be old, or more than a million years. There are only 20 ancient lakes on the planet, but older?
The largest space card
Astronomers studying the largest card in the cosmos have found clues that our best understanding of the universe is due to a major rewriting. The analysis, which examined nearly 15 million galaxies and quasars covering 11 billion years of cosmic time, revealed that dark energy – the alleged future force leading to the accelerated expansion of our universe – could weaken.
Or at least, this is what the data, collected by the Specroscopic Instrument of Dark Energy (DESI), suggest when combined with information from the explosions of stars, the cosmic microwave and the low gravitational lens. If the results resist, this means that one of the most mysterious forces controlling the fate of our universe is even stranger than the first thought – and that Something is not going with our current cosmos model.
Discover more astronomy news
Also in new scientists this week
Also in new scientists this week
–Google’s “co-scientific” has cracked a superbactive problem of 10 years in just 2 days
–Scientists create a new card showing Antarctica without ice in more detail than ever
–Iguanas sailed the world on the world on rafts 34 million years ago
–Puninging IA does not prevent it from lying and cheating – it just makes it better, shows the study
Scientific projector
About four years ago, John Gormly, 77, opted for what was supposed to be a routine blood test. But the results have changed life.
The test suggested that Gormly had colon cancer, which a colonoscopy later confirmed stadium 2, which means that cancer had spread through the colon wall but not to lymph nodes.
“I thought that (my doctor) was wrong,” said Gormly, CEO of a construction company near Newport Beach, California, in Live Science. “I’m going, ‘no, I don’t feel anything.’ But that was there.
Gormly was one of the first patients to pass a newly approved test called Shield, which, according to its manufacturers, can detect colon cancer from a blood sample. After her diagnosis, Gormly underwent surgery to withdraw the tumor and was back to work within 10 days.
The “liquid biopsies” like the one that detected early cancer for Gormly now arrives on the market. Could they lead to previous diagnosis and treatment?
Something for the weekend
Something for the weekend
If you are looking for something a little longer to read during the weekend, here are some of the best long reads, books of books and interviews published this week.
–March 29 Solar eclipse: where and when to see the rare solar eclipse at sunrise from North America (Skywatching)
–Dolphins: Facts on intelligent marine mammals that use tools to hunt (Fact file)
–“Heat is the final boss. The heat is a different beast ”: the planetary danger that no one can avoid (Book extract)
Moving science
A octopus has been seen taking a tour of an improbable marine friend: a super fast shark. The researchers captured a video showing the Orange orange octopus clinging to the back of a large Mako shark at the end (Isurus oxyrinchus) While it swims. This “Sharktopus” was spotted in the Gulf of Hauraki off the north coast of northern island of New Zealand during a research trip in December 2023.
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