China’s first-ever Mars rover was on the move earlier this month, imagery by a NASA spacecraft shows.
The rover, named Zhurong, is part of Tianwen-1, China’s first fully homegrown Red Planet mission, which arrived in orbit around Mars in February. Zhurong separated from the Tianwen-1 orbiter on May 14 and touched down on the vast plain Utopia Planitia a few hours later.
China’s prime rocket manufacturer has unveiled a roadmap for the country’s future manned Mars exploration missions, which not only includes manned landing missions but also Mars base building.
Wang Xiaojun, head of the state-owned China Academy of Launch Vehicle Technology (CALT), outlined the plans in his speech themed “The Space Transportation System of Human Mars Exploration” at the Global Space Exploration Conference (GLEX 2021) via a virtual link, the academy told the Global Times on Wednesday.
After reviewing the successful mission of the Tianwen-1 probe mission, the country’s first interplanetary exploration that achieved a successful orbiting, landing and roving the Red Planet all in one go, Wang introduced the three-step plan for future Mars expedition.
These results suggest that IL-12 and IFN-γ could one day be measured along with other biomarkers to predict future brain health in cognitively normal people–a tool that doesn’t yet exist in medicine.
Summary: Higher levels of two cytokines were associated with slower cognitive decline in aging adults, a new study reports.
Source: Mass General
Research has previously linked inflammation to Alzheimer’s disease (AD), yet scientists from Massachusetts General Hospital (MGH) and the Harvard Aging Brain Study (HABS) have made a surprising discovery about that relationship.
The same bacteria that cause inflammation also trigger weight loss.
A new study investigating how a low-calorie diet alters gut microbial populations is reporting unexpected results. The findings reveal a strange relationship between extreme caloric restriction and increased levels of a pathogenic bacteria linked to inflammatory bowel disease.
The research began by recruiting 80 overweight or obese subjects. Half the cohort were directed to maintain a stable weight for 16 weeks, while the other half completed a medically supervised weight-loss program including eight weeks of a very low calorie diet (800 kcal per day).
At the end of the study period the researchers took fecal samples from the participants and found those in the diet cohort showed substantial gut microbiome alterations, including generally reduced bacterial diversity. Reiner Jumpertz von Schwartzenberg, first author on the new study, says that alongside reducing the overall numbers of gut bacteria present, the dieting seemed to distinctly alter the behavior of the remaining microbes.
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The 30-year-old telescope is ailing — and with it goes some unique capabilities.
NASA is scrambling to get the Hubble Space Telescope back online after a computer glitch that could leave NASA without a good successor.
Circa 2019
A quark–gluon plasma is produced in proton–gold, deuteron–gold and helium–gold collisions. Observing elliptic and triangular flow in this nearly inviscid fluid from these different initial geometries provides a unique benchmark for hydrodynamic models.
Circa 2017
Recently, increasing attention has been devoted to mastering a new technique of optical delivery of micro-objects tractor-beam’1, 2, 3, 4, 5, 6, 7, 8, 9. Such beams have uniform intensity profiles along their propagation direction and can exert a negative force that, in contrast to the familiar pushing force associated with radiation pressure, pulls the scatterer toward the light source. It was experimentally observed that under certain circumstances, the pulling force can be significantly enhanced6 if a non-spherical scatterer, for example, a linear chain of optically bound objects10, 11, 12, is optically transported. Here we demonstrate that motion of two optically bound objects in a tractor beam strongly depends on theirs mutual distance and spatial orientation. Such configuration-dependent optical forces add extra flexibility to our ability to control matter with light.
