science

A team of scientists has discovered three potentially habitable planets in an area just beyond our solar system's back yard.

According to a press release by the European Southern Observatory (ESO) today, the astronomers found a group of six planets in the vicinity of a star known as Gliese 667C, at least three of which were termed "super-Earths" because conditions could support liquid water. … Read more

Have you ever noticed your head rocking back and forth very slightly when you sit still? That's the effect of blood rushing up to feed your brain.

Now Massachusetts Institute of Technology researchers can accurately measure that phenomenon on regular video and figure out how fast someone's heart is beating. They say it might help detect cardiac disease.

The scientists at MIT's Computer Science and Artificial Intelligence Laboratory believe the algorithm could be used for video monitoring of patients with sensitive skin, such as newborns or elderly people. … Read more

Here on planet Earth we're used to flames -- whether from a candle or campfire -- reaching upward to the sky with slender limbs hungry for oxygen and driven by rising hot air. But in space, sans our planet's strong gravitational pull, flames are more likely to take the shape of eerie fireballs.

Within the flame of a regular candle wick, there's quite a bit going on. As the video below released this week by NASA explains, molecules from the wick are being cracked apart and vaporized by the flame, then combined with oxygen to produce light, heat, carbon dioxide, and water, as well as soot.

In recent years we've become quite familiar with how flames can extend and expand quickly in their greedy quest for more fuel and oxygen; witness countless western wildfires of the past decade. But researchers aboard the International Space Station have observed that flames in microgravity behave much differently, staying in a small spherical shape and letting oxygen molecules come to them.… Read more

How does our top layer of skin -- the thin stratum corneum -- manage to keep water inside our bodies and microbes out, all while maintaining strength and elasticity, at just a fraction of the thickness of a sheet of paper?

In the first tests of its kind, scientists at the University of Bath are using a tiny "microneedle" with atomic force microscopy to probe the surface of the top layer of human skin and solve some of these mysteries.

Until now, researchers were able to use this form of microscopy only to analyze the surface of corneocytes, the cells that form the outer layer of the epidermis. Now, by adding a nanoneedle to the end of the probe, they can delve below the surface and shine a light on the cell structure within.… Read more

The $199 Basis Band from Basis Science puts a new spin on the personal health monitor. Like many similar products on the market, such as the Jawbone Up, Nike FuelBand, and Fitbit Flex, this watch-style gadget functions as a pedometer to track steps and basic activity level. Additionally the Basis can measure how long and how well you sleep, a trick both the Up and Flex manage as well. What really sets the Basis Band apart from other fitness devices is that it also keeps an eye on heart rate, skin temperature, and perspiration. The gadget can use several criteria … Read more

Some videogame worlds are just incredible. From Hyrule to Columbia, from the instant you set (virtual) foot inside, you'd be happy to stay there forever.

Although the Aperture Science laboratories aren't necessarily on the same scale, the world and backstory of Portal are rich, and the character of Chell so full of possibility and strength, that we couldn't blame anyone for wanting to spend more time there.

Especially a fan who goes by the Reddit handle BlondeChell. After acquiring her own home where she could do whatever she liked, her penchant for interior decorating and Portal led her to create her very own Portal-themed room. … Read more

Future manned missions to Mars and other remote targets will require internal shielding and advanced propulsion systems to shorten transit times, minimizing exposure to cancer-causing radiation from the sun and deep space, scientists said Thursday.

Data collected by the Radiation Assessment Detector, or RAD, instrument during the Curiosity Mars rover's cruise to the Red Planet last year generally confirmed the results from earlier studies showing space radiation is a major problem that must be overcome before manned trips into deep space are attempted.

"NASA's very excited to get this new cruise data to help us refine and … Read more

The Samsung Galaxy S4 brings a lot of tech to the table. From eye-tracking and gesture control, to its built-in translator and ability to act as a TV remote, the phone is cutting-edge in a plethora of ways. That being said, in today's highly saturated smartphone market, does the S4 have what it takes to be the best? And if it does, is it enough to get people to switch or upgrade with so many good options out there? With these questions in mind, we dished the S4 out to three people, both iOS and Android users, to let … Read more

Spider silk is about four or five times stronger than steel, but it is remarkably lightweight. So, what would it feel like to walk around in a suit woven of the stuff?

Spiber, a startup in northern Japan, is showing off a dress made from synthetic spider silk. The firm is one of several groups looking into how to make and use artificial spider silk, a task that has proven to be very challenging for scientists.

The electric-blue dress was created from a material Spiber calls Qmonos (from kumonosu, or "spider web," in Japanese). The material is extremely strong and more flexible than nylon. … Read more