杏吧原创

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Hubble?s view of supernova explosion Cassiopeia A A new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at the tattered remains of a supernova explosion known as Cassiopeia A (Cas A). It is the youngest known remnant from a supernova explosion in the Milky Way. The new Hubble image shows the complex and intricate structure of the star?s shattered fragments. Acknowledgement: Robert A. Fesen (Dartmouth College, USA) and James Long (ESA/Hubble). NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

Space

杏吧原创s simulated a supernova blast with a foam ball and a laser

Supernovae can create shock waves that may stimulate the formation of new stars, a process that researchers have now recreated using tiny balls of foam and laser beams

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vegan sausages

Technology

Stress-testing sausages may give vegan products a meat-like mouthfeel

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Magnetosphere

Physics

Earth鈥檚 magnetosphere replicated in miniature using lasers and magnets

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Super macro Dangerous Zica virus aedes aegypti mosquito on human skin , Dengue, Chikungunya, Mayaro fever; Shutterstock ID 569801773; purchase_order: -; job: -; client: -; other: -

Health

A single mutation could make Zika virus a lot more dangerous

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Goonhilly Earth Station

Space

Group that wants to contact aliens will transmit to TRAPPIST-1 system

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NEAR ALTAMIRA, BRAZIL - JUNE 15: Construction continues at the Belo Monte dam complex in the Amazon basin on June 15, 2012 near Altamira, Brazil. Belo Monte will be the world???s third-largest hydroelectric project and will displace up to 20,000 people while diverting the Xingu River and flooding as much as 230 square miles of rainforest. The controversial project is one of around 60 hydroelectric projects Brazil has planned in the Amazon to generate electricity for its rapidly expanding economy. While environmentalists and indigenous groups oppose the dam, many Brazilians support the project. The Brazilian Amazon, home to 60 percent of the world???s largest forest and 20 percent of the Earth???s oxygen, remains threatened by the rapid development of the country. The area is currently populated by over 20 million people and is challenged by deforestation, agriculture, mining, a governmental dam building spree, illegal land speculation including the occupation of forest reserves and indigenous land and other issues. Over 100 heads of state and tens of thousands of participants and protesters will descend on Rio de Janeiro, Brazil, later this month for the Rio+20 United Nations Conference on Sustainable Development or ???Earth Summit???. Host Brazil is caught up in its own dilemma between accelerated growth and environmental preservation. (Photo by Mario Tama/Getty Images)

Environment

Early warning system for Amazon forest losses seen in climate models

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Orca plant.

Environment

Carbon removal project in Iceland suffers setback due to harsh winter

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baby

Humans

Shoulder growth may slow during human development to make birth easier

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Face of Rhesus Macaque Monkeys; Shutterstock ID 1754084492; purchase_order: -; job: -; client: -; other: -

Health

Interoception: Monkeys can sense their own heartbeat just like us

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Nerve demyelination. Coloured transmission electron micrograph (TEM) of a section through a Schwann cell and a nerve fibre, showing the early collapse of its myelin sheath. Myelin (red) is an insulating fatty layer that surrounds the nerve fibre (axon, orange), increasing the speed at which nerve impulses travel. It is formed when a Schwann cell (green) wraps around the fibre, depositing layers of myelin between each coil. Demyelination occurs in nerve disorders such as multiple sclerosis (MS). Patches (lesions) of myelin sheath are destroyed and nerve function is impaired. Magnification: x3800 when printed 10 centimetres wide.

Health

MS reversed by transplanted immune cells that fight Epstein-Barr virus

In a small trial, immune cells that fight the Epstein-Barr virus have stopped the progression of multiple sclerosis, an autoimmune condition that can lead to symptoms, such as difficulty walking, that worsen over time

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Technology

Robotic fingertip has human-like sense of touch

Video

Health

Mystery outbreak of hepatitis in children investigated in the UK

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Life

Male toad clings to female for 5 months waiting for chance to mate

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Health

Origami-inspired robot can deliver drugs at the site they are needed

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