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Landsat watches over the Earth, documenting 28 years of change

NASA's Landsat 5, which recently set a Guinness World Record for the "Longest Operating Earth Observation Satellite," has been delivering high-quality, global data of Earth's land surface for 28 years and 10 months.

Using the annual Landsat satellite imagery captured since 1984, Google has created dramatic composites, alongside other Google Earth satellite imagery, depicting our changing world, the death and growth of natural lands, and humans' impact on the landscape.

The animated GIFs shown here chronicle the development and destruction of life on Earth, pulsing like a living being, with forests receding, water evaporating, and cities … Read more

Time-lapse images let you witness 28 years of Earth's changes

A newly released series of dramatic time-lapse satellite images, available at Google's Timelapse Web site, shows just how quickly the world's landscapes have changed in the last 28 years.

The pictures, captured by the series of Landsat satellites and released in conjunction with the U.S. Geological Survey, NASA, and Time magazine, show several startling examples of how humans and natural processes have changed Earth from 1984 to 2012. You'll see the depressing decline of the Columbia Glacier in Alaska, the blossoming of Dubai's epic cityscape, and Las Vegas' urban explosion. There's also an alarming look at the deforestation occurring in the Brazilian Amazon forest. … Read more

Google releases gorgeous Landsat imagery

I confess that waking up today, I didn't wonder why I'd forgotten to send Landsat a birthday card.

However, it seems that the Earth-observing satellite has been floating and watching for 40 years now.

Though it doesn't seem to have quite deserved a doodle, this birthday has deserved something just as visually rich: the release of live imagery of the Earth's surface by Google, as well as some fascinating time-lapse video.

I am grateful to 9to5Google, which discovered these mind-enveloping images.

Personally, I was enchanted by one video that showed the changes in Vegas over the years. … Read more

Landsat at 40: Images from the longest-running eye in the sky

The first Landsat satellite went into orbit 40 years ago today, and during the past four decades, a series of seven different "birds" have trained a watchful eye on Earth from just about the most wicked vantage point around.

The program's youngest eye in the sky, Landsat 7, has been flying since 1999 and will be joined next year by the next-generation Landsat Data Continuity Mission satellite, or LDCM. The LDCM features up-to-date thermal infrared sensors and land-imaging equipment that will make it a full-blown orbiting observatory.… Read more