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UltraViolet: Everything you need to know about the iTunes video alternative

You've seen the little "UV" logo on DVD and Blu-ray packages, but what is UltraViolet and how does it work? We're here to answer those questions.

By June 30, 2015


Glowing ultraviolet aurora spotted on Mars

NASA's orbiting Mars probe has spotted two surprises in the Red Planet's atmosphere: an unexplained dust cloud and a deep ultraviolet aurora.

By March 18, 2015


Which video streaming box is right for you?

Many devices are jockeying for position in your home theater. Find out what streamer fits with your lifestyle.

By November 23, 2015


$20 Ultraviolet dongle on the way -- but will anyone buy it?

A new HDMI dongle aims to make it easier for Ultraviolet users to access their digital lockers -- but is it really bringing anything new to the table?

By August 6, 2014


Watch swirling magnetic loops on the sun in mesmerizing NASA video

An entrancing set of swirls on the sun's surface gets even brighter thanks to a perfectly placed eruption.

By November 18, 2015


Get a GeekFuel mystery box for $11.90

From the Cheapskate: A super-cool, heavily discounted gift item for yourself or your favorite geek. Plus: three bonus deals, including dirt-cheap movie downloads!

By November 6, 2015


See the sun's fury on spectacular 4K display in this NASA video

Each minute of the NASA 4K ultra-HD video took 10 hours to make, and the labor pays off with searing detail of the blazing star.

By November 3, 2015


Appliance Science: The bright physics of light and color

How does color work, and how does the type of light source you use affect the colors you see? Appliance Science looks at the science of light and color.

By November 2, 2015


Filament 50 Earths wide snakes across the sun

NASA's Solar Dynamics Observatory catches sight of an extremely long filament of solar material in the form of a long, dark tendril across the sun's surface.

By October 26, 2015


Hubble spots mother lode of 250 ancient tiny galaxies

Scientists are getting a peek into the early days after the big bang thanks to Hubble's discovery of a large collection of dwarf galaxies.

By October 23, 2015