Android Pay is dead, long live Google Pay


After realising that it was more than slightly unnecessary for Android Pay and Google Wallet to be completely separate services, Google has started rolling out its new unified payment service, Google Pay.

The new app, rolling out now for Android devices, is largely similar to Android Pay in terms of function but it has a slightly different layout. It’s split into two sections: Home, which allows you to see all of your recent payments, any nearby stores and any rewards you can claim, and Cards, which is where you’ll store and find all of your credit and debit cards, loyalty cards, offers, and gift cards.

At the moment, the app doesn’t have Google Wallet’s function which allows you to send and receive money, but this is apparently coming to the UK and US in just a few months. In the meantime, Google has, for some reason, rebranded Google Wallet as Google Pay Send, which will allow you to continue to send and request payments.

A unified service

Overall, the Google Pay experience is still pretty similar to Android Pay at the moment; you can use your saved cards across a wide range of apps and websites via your Android device, and you’ll be able to use the service to pay for public transport if you’re living in a city that supports it.

This is clearly just the first step for Google Pay, though, and it seems that the company has big plans for the service.

In the near future, for example, Google Pay will be on all Google Products. So whether you’re using desktop Chrome or your Google Home, you’ll be able to use the cards that are saved to your Google Account. And we can, apparently, expect to see Google partner with a lot more online and in-store brands in the future.

Google Pay is rolling out now and you’ll be able to download it from the Google Play store soon.


Who ends up replacing Alexa? The complete Super Bowl ad is right here!

Last month, we showed you a teaser for Amazon’s Super Bowl ad. As you recall, Alexa had lost her voice and Amazon founder, CEO and richest man in the world Jeff Bezos, had agreed to a plan to replace her. But who ended up getting the gig? That is revealed in the complete version of the commercial, which you can view by clicking on the video at the top of this story. The first 15 seconds repeats the teaser, and from that point on, the content is brand new.

The first new scene takes place in the kitchen of a man who asks Alexa how to make a grilled cheese sandwich. Since Alexa has lost her voice, one of the replacements starts talking. “Pathetic. You’re 32 years of age and you don’t know how to make a grilled cheese sandwich.” The British accent. The insults. Yes, Gordon Ramsay is one of Amazon’s replacements for Alexa.

Other replacements include rapper Cardi B and Australian actress Rebel Wilson (“you’re in the bush and you’re just so dirty”). But the piece de resistance is the last Alexa replacement shown in the ad. We see a woman applying some makeup as she is getting ready for a night out. She asks Alexa (on her Amazon Echo Spot) to call her boyfriend Brandon. You might have goose bumps on your skin when you hear an eerie voice say, “I’m afraid Brandon is a little tied up.” It’s actor Anthony Hopkins, channeling his most famous role as psychotic killer Hannibal Lechter.

Luckily for the world, the replacements aren’t needed too long. As the commercial ends, we hear Carly Simon singing her classic James Bond song “Nobody Does It Better,” and we know that Alexa is coming back. Sure enough, just before the ad ends, Amazon’s virtual personal assistant says, “Thanks guys, but I’ll take it from here.”

It might not be the best Super Bowl ad (we won’t know until Sunday night), but we will give it points for being creative. And the ad also is a tip of the hat to the amazing growth that Alexa has experienced, coming out of nowhere to be everywhere as 2018 begins.

source: Amazon

Speed of universe’s expansion remains elusive


Unless you are a recent arrival from another universe, you’ve no doubt heard that this one is expanding. It’s getting bigger all the time. What’s more, its growth rate is accelerating. Every day, the universe expands a little bit faster than it did the day before.

Those day-to-day differences are negligible, though, for astronomers trying to measure the universe’s expansion rate. They want to know how fast it is expanding “today,” meaning the current epoch of cosmic history. That rate is important for understanding how the universe works, knowing what its ultimate fate will be and even what it is made of. After all, the prime mission of the Hubble Space Telescope when it was launched in 1990 was to help determine that expansion rate (known, not coincidentally, as the Hubble constant, named for the astronomer Edwin Hubble).

Since then evidence from Hubble (the telescope) and other research projects has established a reasonably precise answer for the Hubble constant: 73, in the units commonly used for this purpose. (It means that two independent astronomical bodies separated by 3.26 million light-years will appear to be moving away from each other at 73 kilometers per second.) Sure, there’s a margin of error, but not much. The latest analysis from one team, led by Nobel laureate Adam Riess, puts the Hubble constant in the range of 72–75, as reported in a paper posted online January 3. Considering that as late as the 1980s astronomers argued about whether the Hubble constant was closer to 40 or 90, that’s quite an improvement in precision.

But there’s a snag in this success. Current knowledge of the universe suggests a way to predict what the Hubble constant ought to be. And that prediction gives a probable range of only 66–68. The two methods don’t match.

“This is very surprising, I think, and very interesting,” Riess, of the Space Telescope Science Institute in Baltimore, said in a talk January 9 at a meeting of the American Astronomical Society.

It’s surprising because astrophysicists and cosmologists thought they had pretty much figured the universe out. It’s made up of a little bit of ordinary matter, a lot of some exotic “dark matter” of unknown identity, and even more of a mysterious energy permeating the vacuum of space, exerting gravitational repulsion. Remember that acceleration of the expansion rate? It implies the existence of such energy. Because nobody knows what it is, people call it “dark energy,” while suspecting that its real name is lambda, the Greek letter that stands for “cosmological constant.” (It’s called a constant because any part of space should possess the same amount of vacuum energy.) Dark energy contributes something like 70 percent of the total mass-energy content of the universe, various lines of evidence indicate.

If all that’s right, then it’s not all that hard to infer how fast the universe should be expanding today. You just take the recipe of matter, dark matter and dark energy and add some ghostly subatomic particles known as neutrinos. Then you carefully measure the temperature of deep space, where the only heat is the faint glow remaining from the Big Bang. That glow, the cosmic microwave background radiation, varies slightly in temperature from point to point. From the size of those variations, you can calculate how far the radiation from the Big Bang has been traveling to reach our telescopes. Combine that with the universe’s mass-energy recipe, and you can calculate how fast the universe is expanding. (You can, in fact, do this calculation at home with the proper mathematical utensils.)

An international team’s project using cosmic microwave background data inferred a Hubble constant of 67, substantially less than the 73 or 74 based on actually measuring the expansion (by analyzing how the light from distant supernova explosions has dimmed over time).

When this discrepancy first showed up a few years ago, many experts believed it was just a mirage that would fade with more precise measurement. But it hasn’t.

“This starts to get pretty serious,” Riess said at the astronomy meeting. “In both cases these are very mature measurements. This is not the first time around for either of these projects.”

One commonly proposed explanation contends that the supernova studies are measuring the local value of the Hubble constant. Perhaps we live in a bubble, with much less matter than average, skewing expansion measurements. In that case, the cosmic microwave background data might provide a better picture of the “global” expansion rate for the whole universe. But supernovas observed by the Hubble telescope extend far enough out to refute that possibility, Riess said.

“Even if you thought we lived in a void…, you still are basically stuck with the same problem.”

Consequently it seems most likely that something is wrong with the matter-energy recipe for the universe (technically, the cosmological standard model) used in making the expansion rate prediction. Maybe the vacuum energy driving cosmic acceleration is not a cosmological constant after all, but some other sort of field filling space. Such a field could vary in strength over time and throw off the calculations based on a constant vacuum energy. But Riess pointed out that the evidence is growing stronger and stronger that the vacuum energy is just the cosmological constant. “I would say there we have less and less wiggle room.”

Another possibility, appealing to many theorists, is the existence of a new particle, perhaps a fourth neutrino or some other relativistic (moving very rapidly) particle zipping around in the early universe.

“Relativistic particles — theorists have no trouble inventing new ones, ones that don’t violate anything else,” Riess said. “Many of them are quite giddy about the prospect of some evidence for that. So that would not be a long reach.”

Other assumptions built into the current cosmological standard model might also need to be revised. Dark matter, for example, is presumed to be very aloof from other forms of matter and energy. But if it interacted with radiation in the early universe, it could have an effect similar to that of relativistic particles, changing how the energy in the early universe is divided up among its components. Such a change in energy balance would alter how much the universe expands at early times, corrupting the calibrations needed to infer the current expansion rate.

It’s not the first time that determining the Hubble constant has provoked controversy. Edwin Hubble himself initially (in the 1930s) vastly overestimated the expansion rate. Using his rate, calculations indicated that the universe was much younger than the Earth, an obvious contradiction. Even by the 1990s, some Hubble constant estimates suggested an age for the universe of under 10 billion years, whereas many stars appeared to be several billion years older than that.

Hubble’s original error could be traced to lack of astronomical knowledge. His early overestimates turned out to be signals of a previously unknown distinction between different generations of stars, some younger and some older, Riess pointed out. That threw off distance estimates to some stars that Hubble used to estimate the expansion rate. Similarly, in the 1990s the expansion rate implied too young a universe because dark energy was not then known to exist and therefore was not taken into account when calculating the universe’s age.

So the current discrepancy, Riess suggested, might also be a signal of some astronomical unknown, whether a new particle, new interactions of matter and radiation, or a phenomenon even more surprising — something that would really astound a visitor from another universe.

The X-ray glow keeps growing after the recent neutron star collision


More than 100 days after two neutron stars slammed together, merging into one, new telescope images have revealed that the collision’s lingering X-ray light show has gotten brighter. And scientists don’t fully understand why.

NASA’s orbiting X-ray telescope, Chandra, previously picked up the X-rays 15 days after gravitational waves from the cataclysm reached Earth on August 17, 2017 (SN: 11/11/17, p. 6). The merged remnant then spent several months too close to the sun for its X-rays to be seen.

When the remnant reemerged from the sun’s veil on December 4, it was about four times brighter than when it was last spotted, Daryl Haggard of McGill University in Montreal and her colleagues report January 18 in Astrophysical Journal Letters.

The glow may be tapering off. The XMM-Newton space telescope found on December 29 that the X-ray signal may be starting to weaken, according to a paper published January 18 at

“The plot is about to thicken,” says Haggard. Chandra has collected new data to look for a drop in brightness.

Scientists are debating how to explain the enduring X-rays. Neutron star collisions are expected to emit bright jets of material, creating X-rays that fade quickly. The long-lasting X-rays might be explained by a “cocoon” of debris (SN Online: 12/20/17), among other possibilities.

Your ultimate fitness guide: welcome to TechRadar’s Fitness Week


Our inaugural Fitness Week has just kicked off on TechRadar where we aim to show you the best tech you should be using to keep fit in 2018 and what the major trends are that will take over the space this year.

We’ve got lots of exciting stuff planned throughout the week, so head back here each day until Sunday to see us everything we’re publishing throughout the week.

Expect fitness diaries using basic trackers to top-end running watches, interviews with some of the biggest health companies on the planet and forward looking features on how we expect tech to progress.

Samsung decides to enable FM Radio chips in its smartphones sold in the US


Samsung has just announced a partnership with NextRadio that will see that all its future smartphones will have their FM Radio chips enabled in the United States. LG made a similar move last year for the same reason, so Samsung felt like it needed to even the scales.

According to an official statement, Samsung is the newest smartphone maker that supports NextRadio by unlocking the FM Radio chip in all the upcoming mobile phones in the United States and Canada.

Unfortunately, that probably means the decision doesn’t apply retroactively, so many of the smartphones that are now available in the US will not have their FM Radio chips enabled.

In any case, if you’ll get any of Samsung’s future smartphones that will have their FM Radio chips unlocked, then you will be able to connect directly with the NextRadio app and listen to your favorite local stations.

It will drain less of your battery than streaming radio apps and you won’t need cellular coverage to listen to the radio, so that’s quite an intelligent move from Samsung.

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