420 articles from THURSDAY 18.2.2021
What Perseverance, NASA’s New Mars Rover, Will Be Doing in its Years on the Red Planet
There was plenty of reason to celebrate when the Perseverance rover successfully touched down in Mars’s Jezero Crater this afternoon. But in some ways, the rover showed up too late—3.5 billion years too late, in fact.
Long ago, in an earlier epoch, as studies of Mars have shown, Jezero Crater was Jezero Lake, a 45 km (28 mi.) depression in the northern Martian hemisphere, fed with...
Michelin to ship tires by sail in effort to reduce emissions
French multinational Michelin Tire has signed up to ship some of the tires it makes in Nova Scotia across the Atlantic to France on a cargo vessel powered mainly by...
Nasa mission control erupts as Perseverance rover successfully lands on Mars – video
Nasa's Perseverance rover touched down on Mars' Jezero Crater to search for ancient microbial life after a journey of almost seven months from Earth, beaming back an image of the surface of the red planetMars rover landing: Nasa's Perseverance safely touches down in search of life Continue...
Mars rover landing: Nasa's Perseverance safely touches down in search of life
Radio signals confirmed that the six-wheeled rover had survived its perilous descent and arrived within its target zoneNasa’s science rover Perseverance, the most advanced astrobiology laboratory ever sent to another world, streaked through the Martian atmosphere on Thursday and landed safely on the floor of a vast crater, its first stop on a search for traces of ancient microbial life on the...
Lynx in Yellowknife, 'likely' connected to earlier sightings, killed by ENR officers
A lynx was killed near the Yellowknife Solid Waste Facility, according to Mike Westwick, an Environment and Natural Resource...
NASA’s Perseverance rover has landed on Mars
NASA’s Perseverance rover has landed safely on Mars. The spacecraft survived its journey through the Martian atmosphere and made a soft touchdown at Jezero crater.
What happened: Perseverance began its descent into the Martian atmosphere Thursday afternoon, a process affectionately called the “seven minutes of terror.” The spacecraft survived scorching temperatures thanks to its heat...
Touchdown! NASA's Mars Perseverance Rover safely lands on Red Planet
- ScienceDaily
- 21/2/18 22:20
The largest, most advanced rover NASA has sent to another world touched down on Mars Thursday, after a 203-day journey traversing 293 million miles (472 million kilometers).
In dueling ants vying to become queen, behavioral and molecular cues quickly determine who will win
In one species of ants, workers duel to establish new leadership after the death of their queen. While these sparring matches stretch for more than a month, changes in behavior and gene expression in the first three days of dueling can accurately predict who will triumph, according to a New York University study published in the journal Genes & Development.
Songbirds' reproductive success reduced by natural gas compressor noise
Some songbirds are not dissuaded by constant, loud noise emitted by natural gas pipeline compressors and will establish nests nearby. The number of eggs they lay is unaffected by the din, but their reproductive success ultimately is diminished.
Is odor the secret to bats' sex appeal?
- ScienceDaily
- 21/2/18 22:04
Odor-producing glands and tissues in bats may play a prominent role in mating behavior.
Chatter between cell populations drives progression of gastrointestinal tumors
- ScienceDaily
- 21/2/18 22:04
Researchers identified new therapeutic targets for gastrointestinal stromal tumors (GISTs) that could lead to new treatment options for patients.
Study suggests link between DNA and marriage satisfaction in newlyweds
- ScienceDaily
- 21/2/18 22:04
Psychologists suggest a link between DNA and traits beneficial to bonding and satisfaction in first years of marriage.
Researchers eavesdrop on cellular conversations
An interdisciplinary team of biologists and mathematicians at the University of California, Irvine has developed a new tool to help decipher the language cells use to communicate with one another.
NASA rover lands on Mars to look for signs of ancient life
A NASA rover streaked through the orange Martian sky and landed on the planet Thursday, accomplishing the riskiest step yet in an epic quest to bring back rocks that could answer whether life ever existed on Mars.
Nasa's Perseverance rover lands on Mars
The six-wheeled robot survives a hair-raising, seven-minute descent to the surface of the Red Planet.
UN: Huge changes in society needed to keep nature, Earth OK
A new United Nations report says leaders need to stimulate serious change in society to keep Earth a livable...
Explainable AI for decoding genome biology
Researchers at the Stowers Institute for Medical Research, in collaboration with colleagues at Stanford University and Technical University of Munich have developed advanced explainable artificial intelligence (AI) in a technical tour de force to decipher regulatory instructions encoded in DNA. In a report published online February 18, 2021, in Nature Genetics, the team found that a neural network...
Is odor the secret to bats' sex appeal?
When falling in love, humans often pay attention to looks. Many non-human animals also choose a sexual partner based on appearance. Male birds may sport flashy feathers to attract females, lionesses prefer lions with thicker manes and colorful male guppies with large spots attract the most females. But bats are active in the dark. How do they attract mates? Mariana Muñoz-Romo, a senior Latin...
Touchdown! NASA's Mars Perseverance Rover Safely Lands on Red Planet
Portal origin URL: Touchdown! NASA's Mars Perseverance Rover Safely Lands on Red PlanetPortal origin nid: 468441Published: Thursday, February 18, 2021 - 15:42Featured (stick to top of list): noPortal text teaser: The largest, most advanced rover NASA has sent to another world touched down on Mars Thursday, after a 203-day journey traversing 293 million miles (472 million...
Poor swelter as urban areas of U.S. Southwest get hotter
Acres of asphalt parking lots, unshaded roads, dense apartment complexes and neighborhoods with few parks have taken their toll on the poor. As climate change accelerates, low-income districts in the Southwestern United States are 4 to 7 degrees hotter in Fahrenheit—on average—than wealthy neighborhoods in the same metro regions, University of California, Davis, researchers have found in a new...
New study examines leeches for role in major disease of sea turtles in Florida
University of Central Florida researchers are homing in on the cause of a major disease of sea turtles, with some of their latest findings implicating saltwater leeches as a possible factor.
Migratory birds track climate across the year
As climate change takes hold across the Americas, some areas will get wetter, and others will get hotter and drier. A new study of the yellow warbler, a widespread migratory songbird, shows that individuals have the same climatic preferences across their migratory range. The work is published Feb. 17 in Ecology Letters.
Engineers place molecule-scale devices in precise orientation
Engineers have developed a technique that allows them to precisely place microscopic devices formed from folded DNA molecules in not only a specific location but also in a specific orientation.
Internet trends suggest COVID-19 spurred a return to earlier values and activities
American values, attitudes and activities have changed dramatically during COVID-19, according to a new study of online behavior.
South American lizard's blood pressure mechanism is more efficient at cool temperatures
The mechanism that keeps arterial blood pressure stable in black and white tegu lizards (Salvator merianae) even as their body temperature varies substantially is more efficient at lower than higher external temperatures, contrary to what has always been believed, and vascular regulation plays a key role in pressure adjustments, according to an article published in PLOS ONE by researchers at the...