Tecnologia

Three Planets Discovered in Entirely New Way

Three Planets Discovered in Entirely New Way

Other phenomena, however, could also account for these tantalising features. Testing its new method, the team confirmed the previously predicted existence of two Jupiter-mass planets around HD 163296. ALMA is a partnership of European Southern Observatory (ESO) (representing its member states), National Science Foundation (USA), and National Institutes of Natural Sciences (Japan), together with National Research Council (Canada), National Science Council and Academia Sinica Institute of ... Consulte Mais Informação

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Antarctic ice loss triples, boosting sea levels

Antarctic ice loss triples, boosting sea levels

An worldwide team of scientists has discovered that the world's ice shelves may be being destabilized by forces from above and below, according to a study published Wednesday in the journal Science Advances. However, a period of heavy snowfall between 2005 and 2010 masked some of the immediate effects of the ice loss, accounting for the sudden, steep increase in more recent years. Consulte Mais Informação

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Stephen Hawking’s words to be beamed into black hole

Stephen Hawking’s words to be beamed into black hole

The wheelchair-bound author and scientist died in March aged 76 , but his family says the commemoration also fulfils his wish of wanting to go in to space. The satellite broadcast will feature readings and addresses from people including actor Benedict Cumberbatch and British astronaut Tim Peake. The words of this extraordinary man will be beamed towards the nearest black hole , 1A 0620-00, which is itself in a binary system " with a fairly ordinary orange dwarf star ", according to his ... Consulte Mais Informação

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Antarctic Ice Sheet Is Melting Way Faster Than Expected, Scientists Warn

Antarctic Ice Sheet Is Melting Way Faster Than Expected, Scientists Warn

Antarctica has lost trillion tonnes of ice to global warming over the past quarter of a century, according to a new study, and that loss has been accelerating in recent years, to triple the rate that was seen prior to 2012. Shepherd said the ice on West Antarctica can be melted by very small changes in ocean temperature. 'I think we should be anxious. But another decade after that, between 2012 and 2017, that number was 219 billion metric tons of ice lost per year. Consulte Mais Informação

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Mars rover Opportunity weathering major dust storm

Mars rover Opportunity weathering major dust storm

NASA's solar-powered Opportunity Mars rover, seen here in an artist's concept, has powered down and suspended science operations because of a widespread dust storm that has sharply reduced the energy reaching its solar cells. If the charge dips too low, the rover won't know what time it is, though there are systems in place to deal with that. Jim Watzin, director of the Mars Exploration Program, said this attention to build quality is what has kept the Opportunity rover going so far ... Consulte Mais Informação

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Einstein’s unseen travel diaries reveal racist attitude towards Chinese people

Rosenkranz is also the assistant director of the Einstein Papers Project at the California Institute of Technology and has written several books about the life of Einstein. "Pure souls as nowhere else among people". However, he also noted that the "intellectual needs of this nation seem to be weaker than their artistic ones - natural disposition?" In Egypt, Einstein described arriving in Port Said and facing "Levantines of every shade... Consulte Mais Informação

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Martian Dust Storm Sends NASA's Opportunity Rover into Hibernation Mode

Martian Dust Storm Sends NASA's Opportunity Rover into Hibernation Mode

As soon as the orbiter team saw how close the storm was to Opportunity , they notified the rover's team to begin preparing contingency plans. As has been seen throughout Opportunity's lifetime, dust routinely collects on the surface of its solar panels and is, somewhat surprisingly, routinely cleaned by Mars' wind and dust devil events , thus allowing greater power generation on the rover than would otherwise be possible if total accumulation built up over time without these cleaning ... Consulte Mais Informação

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French farmers suspend fuel blockades after government gesture

French farmers suspend fuel blockades after government gesture

French farmers blocked access to oil depots and refineries using tonnes of onions, wood and rubble as part of a three-day protest against plans to allow Total to use imported palm oil at a biofuel plant. Hulot had said past year France would take steps to restrict the use of palm oil in producing biofuels in order to reduce deforestation in the countries of origin, without detailing the measures. Consulte Mais Informação

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Category 3 Hurricane Bud heads north off Mexico

Category 3 Hurricane Bud heads north off Mexico

In an update Monday morning , the National Hurricane Center said Bud's core and strong winds are expected to remain offshore over the next few days. The NHC issued a tropical storm watch for Manzanillo to Cabo Corrientes, meaning tropical storm conditions are possible there over the next day. "Significantly cooler waters around the southern tip of Baja California should reduce Bud's intensity below hurricane status before it reaches that land", the centre said. Consulte Mais Informação

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Indian scientists discover exoplanet 600 light years away

Indian scientists discover exoplanet 600 light years away

These researchers estimate that all planets discovered will have temperatures superficial tens of degrees higher than those of the planet Earth due to the strong radiation they receive in these close orbits to their stars. The PRL scientists observed the target for around 420 days for probing the nature of the system using the PARAS spectrograph. It is expected to be launched in 2020. Consulte Mais Informação

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Say no to plastic pollution

Say no to plastic pollution

World Oceans Day only comes one per year, but making a few lifestyle changes now could eventually make this awareness event much less necessary. Watch out for further details of #BeatPlasticPollution campaigns over the coming weeks. They are the lungs of our planet, providing most of the oxygen we breathe. One misconception at microplastics is that they are "not ideal, but safer" than the plastic bags and can holders that entrap creatures every day. Consulte Mais Informação

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Mars had the ingredients needed for life

Mars had the ingredients needed for life

A reminder: Organic molecules aren't necessarily produced by organisms; they're just chemical compounds that contain carbon. Researchers say they can't rule out a biological source. The organic matter was found in the bed of an ancient, now deceased lake on the planet, and could have formed 3 billion years ago. Scientists estimated the age of the rocks by the crater count method. Consulte Mais Informação

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Quebec City protesters promise 'day of disruption' as G7 talks begin

Quebec City protesters promise 'day of disruption' as G7 talks begin

Up till now the protests have been calm. It's impossible to predict how (protesters) will act and how police will react. She said that she would stay open with barricades and her only worry is night time. They said the fortified enclosure and security checkpoints would be intimidating to protesters, and noted that the site was some distance away from where the leaders will be meeting. Consulte Mais Informação

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Aletta becomes first hurricane of 2018 Pacific season

Aletta becomes first hurricane of 2018 Pacific season

Aletta is the first hurricane of the 2018 season in the eastern Pacific. The hurricane is moving towards the west at a speed of 7 kilometers (5 miles) per hour, which will keep it well away from any land. The center said Aletta is likely to become a hurricane by Thursday as it moves westward into the Pacific. Aletta was first named a hurricane on Thursday, June 7, which is over two weeks earlier than normal. Consulte Mais Informação

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Half-billion-year-old fossils are the oldest animal footprints ever found

In a release put out by the Chinese Academy of Sciences- Nanjing Institute of Geology and Palaeontology , researchers noted that the fossils were from the Ediacaran Period- about 635-541 million years ago. This new find is the first direct evidence of animals with appendages during the Late Ediacaran Period . An worldwide team of scientists, including researchers from the Nanjing Institute of Geology and Palaeontology, and Virginia Tech in the United States, conducted the study . Consulte Mais Informação

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Aletta becomes first hurricane of eastern Pacific season

Aletta becomes first hurricane of eastern Pacific season

These slower speeds don't mean the winds circling the eye of the storm are slowing down. He found hurricanes in 2016 moved an average of 10 percent slower than hurricanes in 1949. Dr Christina Patricola , from the Climate and Ecosystems Sciences Division at University California, Davis, says the findings raise several questions, especially regarding "stalled" tropical cyclones. Consulte Mais Informação

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Russian Federation launches Soyuz MS-09 spacecraft with int'l crew to ISS

Russian Federation launches Soyuz MS-09 spacecraft with int'l crew to ISS

However, a great deal of Americans surveyed in the pool tend to be skeptical about whether private companies will minimize space debris. A majority of Americans also express confidence that these private companies will build safe and reliable rockets and spacecraft, with 26% expressing a great deal of confidence and 51% having at least a fair amount of confidence. Consulte Mais Informação

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