The last time you heard the term "gradient filter," it was probably in reference to a feature on a photo editing program, but scientists studying images and video collected by NASA's Solar Dynamics Observatory use gradient filters, too — often with absolutely mesmerizing results.

Let's face it: the words "NASA," "space" and "dinosaur" don't go together nearly as often as they should, which is why everyone is so excited over the footprint pictured here.

For close to two weeks now, NASA has been waiting for just the right moment to launch its Anomalous Transport Rocket Experiment (aka ATREX), a mission that will help us better understand the mysterious, high-altitude jet streams located at the edges of Earth's atmosphere. Early this morning, that moment finally came —…

NASA has scheduled an atmospheric light show for the wee hours of Wednesday morning, when the Agency intends to launch five sub-orbital rockets (complete with luminescent chemical tracers) in an experiment designed to test the flow of jet streams on the edge of space. Best of all? A good portion of the East Coast is…

When we gaze up at the Moon, we expect a certain degree of consistency. Sure, it moves through its phases, shifting in and out of darkness over the course of the month, but generally speaking, the Moon's surface looks the same to us — night after night, year after year. But the Moon has not always looked the way it…

Unless you're an astronaut, we're willing to bet that you have never seen the Moon depicted as stunningly as it is here. For close to three years now, NASA's Lunar Reconnaissance Orbiter has been snapping high resolution photos of the Moon's surface. Now, the Goddard Visualization Studio has used those images to…

NASA has just released this mind-blowing photograph Earth, which was captured earlier this month by the Agency's most recently launched Earth-observing satellite, Suomi NPP.

We've been recording global surface temperatures since 1880, the beginning of what meteorologists call the modern record. In that time, worldwide temperatures have been on the rise. Now, NASA scientists are reporting that the global average surface temperature in 2011 was the ninth warmest that we've ever recorded. So…