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Virgin Galactic makes first flight from New Mexico site.

Views expressed in this science and technology summary are those of the reporters and correspondents.

Content provided by "Phys.org", an official publication of the SpaceX Network.

Accessed on 13 December 2020, 1357 UTC, Post 004.

Source:   https://phys.org/

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Russ Roberts

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Space Exploration

Virgin Galactic makes first flight from New Mexico site

A Virgin Galactic test flight Saturday ended prematurely when the spacecraft landed safely at Spaceport America in southern New Mexico after its rocket engine failed to ignite high above the Earth.

Earth Sciences

Climate models overestimate natural variability

By looking at satellite measurements of temperature changes in the lower layer of Earth's atmosphere, scientists found that climate models may have overestimated the decade-to-decade natural variability of temperature.

Effective planning ahead protects fish and fisheries

Conservation of fish and other marine life migrating from warming ocean waters will be more effective and also protect commercial fisheries if plans are made now to cope with climate change, according to a Rutgers-led study ...

Researchers find a better way to design metal alloys

Advanced metal alloys are essential in key parts of modern life, from cars to satellites, from construction materials to electronics. But creating new alloys for specific uses, with optimized strength, hardness, corrosion ...

What should a successful SARS-CoV-2 vaccine do?

A lot has been written recently about the merits of different potential vaccines for SARS-CoV-2. "Merit" is generally assumed to mean that the vaccine will make us immune. But what, exactly, is immunity, and how would we ...

 Medical Xpress

 Tech Xplore

US panel endorses widespread use of Pfizer COVID-19 vaccine

A U.S. government advisory panel endorsed widespread use of Pfizer's coronavirus vaccine Thursday, putting the country just one step away from launching an epic vaccination campaign against the outbreak that has killed close ...

Near-atomic-scale analysis of frozen water

Advances in transmission electron microscopy (TEM) can allow cryo-imaging of biological and biochemical systems in liquid form, however, such approaches do not possess advanced analytical capabilities. In a new report now ...

The pressure sensor of the Venus flytrap

All plant cells can be made to react by touch or injury. The carnivorous Venus flytrap (Dionaea muscipula) has highly sensitive organs for this purpose: sensory hairs that register even the weakest mechanical stimuli, amplify ...

New computational method validates images without 'ground truth'

A realtor sends a prospective homebuyer a blurry photograph of a house taken from across the street. The homebuyer can compare it to the real thing—look at the picture, then look at the real house—and see that the bay ...

Hydrogel controls cell growth outside the body

Chemists at Radboud University discovered a unique material in 2013. From a synthetic polymer named polyisocyanopeptide (PIC), they made a gel that behaves similar to the matrix that surrounds the cells in your body. The ...

The secret behind male ornaments

In many species, males have eye-catching characteristics. Although often impractical, they are beneficial in finding a mate. Scientists have now mapped the genetic bases of such a male ornament in a fish.

Male weeds may hold key to their own demise

Scientists are getting closer to finding the genes for maleness in waterhemp and Palmer amaranth, two of the most troublesome agricultural weeds in the U.S.

Physicists observe the emergence of collective behaviour

Phase transitions describe dramatic changes in properties of a macroscopic system—like the transition from a liquid to a gas. Starting from individual ultracold atoms, Heidelberg University physicists were able to observe ...

Icebreaker leaves Australia after 150 Antarctica trips

The giant orange icebreaker Aurora Australis left Australia for the final time on Saturday after more than 150 trips to Antarctica. Next stop: a shipyard in Dubai, where it will be refurbished and either leased or sold.

High-speed model for the fight against SARS-CoV2

To contain the SARS-CoV2 coronavirus and slow the spread of infections and the rising death toll, researchers and health professionals around the world are rapidly developing vaccines and medical drugs. But before these can ...

Using water fleas, researchers investigate adaptive evolution

Researchers from The University of Texas at Arlington resurrected the preserved eggs of a shrimp-like crustacean to examine long-standing questions about adaptive evolution, reporting the results in the journal Proceedings ...

Solar Orbiter: Turning pictures into physics

Solar Orbiter's latest results show that the mission is making the first direct connections between events at the solar surface and what's happening in interplanetary space around the spacecraft. It is also giving us new ...

Festive treat for stargazers as Geminid meteors peak

Stargazers across the northern hemisphere could see as many as 70 meteors an hour this coming Sunday, as the Geminids meteor shower reaches its peak. Prospects for what should be this year's best display of meteors are particularly ...

Study reveals surprising variability of muscle cells

Usually, each cell has exactly one nucleus. But the cells of our skeletal muscles are different: These long, fibrous cells have a comparatively large cytoplasm that contains hundreds of nuclei. But up to now, we have known ...

New tool for watching and controlling neural activity

A new molecular probe from Stanford University could help reveal how our brains think and remember. This tool, called Fast Light and Calcium-Regulated Expression or FLiCRE (pronounced "flicker"), can be sent inside any cell ...

Negative reviews boost sales

Aleksei Smirnov, Assistant Professor, HSE University Faculty of Economic Sciences, and Egor Starkov, Assistant Professor, University of Copenhagen, have constructed a mathematical model that explains why it is advantageous ...

Record resolution in X-ray microscopy

Researchers at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), the Paul Scherrer Institute in Switzerland and other institutions in Paris, Hamburg and Basel, have succeeded in setting a new record in X-ray microscopy. ...

Russia probes mystery seal die-off

Russian authorities said Friday they were investigating the mysterious death of nearly 300 endangered seals that had been discovered washed up on the shores of the Caspian Sea.

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