Menu

Blog

Page 8148

Apr 17, 2019

Cassini reveals surprises with Titan’s lakes

Posted by in category: space

On its final flyby of Saturn’s largest moon in 2017, NASA’s Cassini spacecraft gathered radar data revealing that the small liquid lakes in Titan’s northern hemisphere are surprisingly deep, perched atop hills and filled with methane.

The new findings, published April 15 in Nature Astronomy, are the first confirmation of just how deep some of Titan’s lakes are (more than 300 feet, or 100 meters) and of their composition. They provide new information about the way liquid methane rains on, evaporates from and seeps into Titan—the only planetary body in our solar system other than Earth known to have stable liquid on its surface.

Scientists have known that Titan’s hydrologic cycle works similarly to Earth’s—with one major difference. Instead of water evaporating from seas, forming clouds and rain, Titan does it all with methane and ethane. We tend to think of these hydrocarbons as a gas on Earth, unless they’re pressurized in a tank. But Titan is so cold that they behave as liquids, like gasoline at room temperature on our planet.

Continue reading “Cassini reveals surprises with Titan’s lakes” »

Apr 17, 2019

Even moderate intake of red meat raises cancer risk, study finds

Posted by in categories: biotech/medical, food

This is an old study with new data from UK Biobank.


People more or less keeping to NHS guidelines at higher risk than those who eat little.

Read more

Apr 17, 2019

If we’re in a simulated universe, could we make a search engine out of it?

Posted by in category: futurism

28 votes and so far on Reddit.

Read more

Apr 17, 2019

Water on Mars: Exploration & Evidence

Posted by in category: space

Mars has water trapped in the polar ice caps. More water may lie just beneath the surface. A new study suggests that water also flows on the surface.

Read more

Apr 17, 2019

Polarizing the Data Center: Spin Lasers Deliver 240 Gigabits Per Second

Posted by in categories: computing, internet

Next-generation, low-power optical data transmission may rely on polarization rather than switching laser pulses on and off.

Read more

Apr 17, 2019

Fast digital forensics sniff out accomplices

Posted by in category: futurism

Software that rapidly analyses digital devices and builds a list of a suspect’s known associates could be a powerful tool for solving crimes.

Read more

Apr 17, 2019

Qualcomm Aims for Quantum AI Chips

Posted by in categories: information science, quantum physics, robotics/AI

Qualcomm said it plans to begin testing its new Cloud AI 100 chip with partners such as Microsoft Corp later this year, with mass production likely to begin in 2020.

Qualcomm’s new chip is designed for what artificial intelligence researchers call “inference” – the process of using an AI algorithm that has been “trained” with massive amounts of data in order to, for example, translate audio into text-based requests.

Analysts believe chips for speeding up inference will be the largest part of the AI chip market.

Continue reading “Qualcomm Aims for Quantum AI Chips” »

Apr 16, 2019

Discovery! 3rd Planet Found in Two-Star ‘Tatooine’ Star System

Posted by in category: space

Kepler-47 is a roughly 3.5-billion-year-old system located 3,340 light-years from Earth. One of its stars is quite sunlike, but the other is considerably smaller, harboring just one-third the mass of our sun. The two stars orbit their common center of mass once every 7.45 Earth days.

Back in 2012, Welsh and his colleagues, led by fellow SDSU astronomer Jerome Orosz, announced the discovery of two planets circling the two stars. These worlds, Kepler-47b and Kepler-47c, both have two suns in their skies, just like Luke Skywalker’s home planet of Tatooine in the “Star Wars” universe.

Read more

Apr 16, 2019

New discovery makes fast-charging, better performing lithium-ion batteries possible

Posted by in categories: electronics, transportation

Creating a lithium-ion battery that can charge in a matter of minutes but still operate at a high capacity is possible, according to research from Rensselaer Polytechnic Institute just published in Nature Communications. This development has the potential to improve battery performance for consumer electronics, solar grid storage, and electric vehicles.

Read more

Apr 16, 2019

Scanning for cancer treatment

Posted by in category: biotech/medical

Chemotherapy helps two out of three patients achieve remission. And recently, drug developers designed a new attack, one intended to target the patient’s malfunctioning genes, reclaim their hijacked cells, and halt growth. But this kind of drug development can result in more errors in trials, and can take years to get from lab to patient.

Now, in a paper published in Nature Chemical Biology, Harvard University Assistant Professor of Chemistry and Chemical Biology Brian Liau reveals why certain AML drugs only work some of the time. With his new technique, Liau and team expose more intimate details about the drug-body relationship and, in the process, disprove previous assumptions about how AML drugs work.

Read more