In a new study published in the journal Microorganisms , a team of researchers from the UK, the Netherlands and Germany tested how mammalian immune cells responded to peptides containing two amino acids that are commonly found in carbonaceous meteorites. The immune response to these alien peptides was less efficient than the reaction to those common on Earth.
This high-resolution scanning electron microscope image shows an unusual tube-like structural form that is less than 1/100th the width of a human hair in size found in the Martian meteorite ALH84001. Image credit: NASA.
And here's another article:
Weather is good for NASA's Mars Perseverance launch from Cape Canaveral
Less than a week to go until a spacecraft slated to head to Mars lifts off from Cape Canaveral and weather is looking good for launch.
As of Sunday, weather was 80% "go" as calculated by the U.S. Air Force for NASA's Mars Perseverance launch which is scheduled to lift off no earlier than 7:50 a.m. July 30.
The spacecraft will launch atop United Launch Alliance's Atlas V rocket from Cape Canaveral Air Force Station Launch Complex 41.
Quiz: Morning trivia challenge: July 27, 2020 | Stuff.co.nz
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* Quiz: Afternoon trivia challenge: July 26, 2020
* Quiz: Morning trivia challenge: July 26, 2020
* Quiz: Afternoon trivia challenge: July 25, 2020
'Lost' world rediscovery is step toward finding habitable planets - science - Hindustan Times
The rediscovery of a lost planet could pave the way for the detection of a world within the habitable ‘Goldilocks zone’ in a distant solar system.
The planet, the size, and mass of Saturn with an orbit of 35 days is among hundreds of ‘lost’ worlds that University of Warwick astronomers are pioneering a new method to track down and characterise in the hope of finding cooler planets like those in our Solar System and even potentially habitable planets.
Other things to check out:
Rock Fairy remains elusive » Albuquerque Journal
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We Should Message Extraterrestrial Civilizations, Not Just Listen for Them - Scientific American
For one thing, most of them, like most intelligent species on our own planet, are probably not technological. Then, too, the span during which a high technology species both can and might wish to make contact with a relatively low-technology species such as our own may be limited. Technological species may even regularly destroy their capacity for interstellar contact, something that not inconceivably could be our own fate.
How relatively easy it is to study child development, with billions of children growing up all the time, each with a brief and comparable trajectory. How hard it is to study the development of a high-technology species, with an n of 1 so far and a developmental trajectory of tens of thousands of years.
Happening on Twitter
While their immune system might seem biologically primed to ward off COVID-19, not all children are equally affected https://t.co/r46rfLFn91 NatGeo (from Global) Sat Jul 25 16:00:31 +0000 2020
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