Science

Giant CO2 spheres invade NYC

With its many pedestrians and subway users, New York seems like one of the greener cities in the U.S. But it still produced a gob-smacking mountain of carbon emissions in 2010.

In the vid below from graphics firm Carbon Visuals, the 54 million tons of CO2 is illustrated as a mass of spheres that tower over the city, engulfing its buildings.

Some 75 percent of the pollution came from buildings, with the bulk of the rest from transport, according to the firm, which used city data. … Read more

This smiley face tattoo is monitoring you

A Ph.D. student at the University of Toronto is using the same transfer paper currently affixing temporary tattoos to kids -- in conjunction with a common screen-printing technique -- to develop a medical sensor that keeps tabs on a person's exertion by monitoring the skin's pH levels.

Similar devices, which are called ion-selective electrodes (ISEs), are already common among athletic trainers and medical researchers to help spot fatigue, dehydration, or even metabolic diseases. But they tend to be bulky and don't stick well to sweaty skin.

The new sensor stays put and doesn't look so, … Read more

Mercury's north pole is probably chock full of ice

Disappointed about that hyped-up supposed Mars discovery that ended up evaporating? Turn your eyes toward Mercury.

A NASA news conference yesterday suggested what many scientists have suspected for decades: Mercury's northern pole most likely contains large deposits of water ice and possible organic materials. The new data comes from Messenger -- a NASA spacecraft currently orbiting Mercury -- which observed the icy deposits by measuring hydrogen concentrations on the planet. The findings were described in three separate papers published yesterday in the science journal Nature. … Read more

NASA confirms rumors about Mars discovery 'incorrect'

What were you hoping for with the big juicy Mars discovery that a NASA researcher hinted at? Aliens? Kuato? Jimmy Hoffa?

As you'll no doubt recall, NASA investigator John Grotzinger was quoted as saying that data from the Curiosity rover suggested a discovery of epic significance. Well, here's your official oven-fresh serving of disappointment.

Today NASA confirmed there's no earth-shaking finding from the soil samples analyzed with Curiosity's on-board chemistry lab. … Read more

NASA: There will be a year 2013, so plan accordingly

I'm planning to have an awesome holiday season this year, if only by virtue of the fact that myself and leading astrobiologist David Morrison are confident we'll be around to celebrate them.

Normally I don't seek out the professional opinion of NASA scientists to validate my Christmas and New Year's plans, but in the case of 2012 I'm playing it safe.

You've probably heard, if you've spent any time on the Internet in the past decade, that lots of people believe some sort of doomsday is in store for us around the time … Read more

3D printer on moon or Mars could make tools from local rocks

NASA is already experimenting with 3D-printing components for rockets to Mars, but the fun doesn't have to stop at liftoff.

Researchers at Washington State University and NASA are suggesting that rocks on the moon or Mars could be used to print useful objects like tools or replacement parts.… Read more

NASA hedges on Curiosity's mystery Mars discovery

Let's review what we know about NASA's Martian secret heard round the solar system last week:

An NPR reporter happened to be recording in the office of the lead scientist for the Curiosity rover as some data from the rover's on-board chemistry lab was coming in. When pressed by the reporter to interpret the data, NASA's John Grotzinger declined, commenting simply that the "data is going to be one for the history books."… Read more

Wacca-wacca: NASA unveils Saturn's second Pac-Man moon

Forget Mars! NASA has discovered signs of video gaming on a moon of Saturn. Recently released images from the Cassini mission show features on the icy moon of Thethys that look suspiciously like a famous '80s arcade creation.

The Pac-Man image was discovered in thermal data provided by Cassini's composite infrared spectrometer. You can read up on the nifty high-energy electrons bombardment theory for the shape over at NASA. The findings were published in the journal Icarus.… Read more

World's tallest tower to overshadow monumental goof in Ecuador

MITAD DEL MUNDO, Ecuador--The effort to mark exactly where the equator traverses this tiny country roughly the size of Colorado -- if Colorado were filled with not just tall, jagged mountains, but also with jungle and rainforest and swamp and humid lowlands -- has been filled with centuries of folly and misplaced monuments. Now a provincial government in Ecuador wants to finally get it right, and make a big statement at the same time.

Despite being the longest way around the Earth, the equator is relatively hard to get to. Just take a look at your globe (OK, Google Earth will do) and you'll notice it passes through an awful lot of empty ocean, some remote islands, the Amazon, and some typically inaccessible parts of Africa. These raw geographic realities have made Ecuador particularly important for those on a quest for middle earth (not Middle Earth) for centuries. … Read more

Scientists say Google Earth island in Pacific doesn't exist

If you thought Apple's Maps app might steer you wrong, just watch out if you're navigating the South Pacific with Google Maps.

It and Google Earth, as well as marine maps and charts, show a feature west of New Caledonia that Australian scientists say is a phantom island.

Sandy Island looks like a gaping hole in the Coral Sea. About 16 miles long, north to south, it could make the perfect beach nirvana.

But the University of Sydney scientists found only ocean 4,620 feet deep when they went to the site while on a research expedition. The depth would preclude the island sinking. … Read more