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The Giant 3D Printer That Can Stop Climate Change

By Jeremy Radachowsky

In the run-up to the United Nations Climate Change Conference in Paris next month, countries are promoting research into new climate-friendly technologies – things like capturing carbon emitted from smokestacks and storing it underground, increasing efficiency of energy use and the transportation sector, and even wilder ideas such as changing the reflectivity of earth’s surface. Yet, there are two existing technologies that are ready to be acted upon today, whose collective impact could be larger than any future technological breakthrough.

Newfound “Pitbull” Asteroid Will Zip By Earth on Sunday

Good news, folks: The world won’t end on Sunday, when an asteroid nicknamed “Pitbull” will zip past Earth. But asteroid 2014 RC will provide some virtual sky-watching drama for fans of celestial flybys. (Related: “Asteroids and Comets.”) Discovered independently by two different observatory teams on August 31, the 60-foot-wide (20 meters) space rock will come closest to Earth at…

NASA Unveils Selfie of Earth Created With Tens of Thousands of Individual Pictures

A stunning “Global Selfie” mosaic from NASA celebrates Earth and Earth Day.

Watch Stunning Live NASA Feed of Earth From Space

Cloud watching, that most ancient pastime, enters the modern age, thanks to the astronauts aboard the International Space Station. Ever wish you could just sit back in space and gaze as the Earth lazily rolled by beneath you, just like the astronauts? Well, NASA is offering the next best thing to being there in person,…

March 9, 2014: Racing the Iditarod With Twins, Time Traveling to a Black Hole and More

Join radio host Boyd Matson every week for adventure, conservation and green science. This week they ride 1,000 miles across Alaskan wilderness with a pack of dogs, hike quickly down the Appalachian Trail, lower scientists into sinkholes on tepuis, program robots to do household chores but not enslave the human race, break free of time on the edge of a black hole, be persecuted for our science, grow organic underwear, and explain evolution to children.

Sun Unleashes Monster Blast—Biggest in a Year

A powerful solar blast uncorked late Monday was the biggest one in a year, report space-weather officials.

Awesome First Snapshot of Earth From Curiosity Rover

Not much more than just a few pixels on the photo above, that bright dot in the twilight Martian sky is Earth, as seen by NASA’s Mars Curiosity rover. A first view of the rover’s picture of its home planet, taken from the surface of Mars, even shows Earth’s moon. And while NASA engineers say…

NASA Reveals Saturn’s View Of Earth

NASA has unveiled a gorgeous Cassini spacecraft look at the Earth, Mars and Venus, as seen from behind Saturn. In orbit around the ringed planet since 2004, Cassini set up the image when it passed into Saturn’s shadow on July 19, 2013. That allowed the spacecraft to capture the arrangement of rings, moons and worlds seen…

Photos: Astronauts Capture, Tweet Constellations from Space Station

Ever wonder about what some of the most familiar constellations look like from space?   Above the blurring effect of Earth’s atmosphere, the stellar patterns that were first imagined by ancient Greek and Roman skywatchers come to life. Some 400 kilometers from Earth, many astronauts aboard the International Space Station (ISS) are  avid stargazers, pointing…

The Mystery of the Migrating Fishes: Swimming the Gauntlet to Green Bay

  Dr. Solomon David, Postdoctoral Research Associate Daniel P. Haerther Center for Conservation & Research, Shedd Aquarium Center for Limnology, University of Wisconsin-Madison The ice and snow of early spring in northern Wisconsin had come and gone. Also departing with the frigid weather were the adult northern pike our team had been tracking as the fish…

Horseshoe Crab #2859

Today, during an early morning walk along Morse Beach, near Sandy Point Bird Sanctuary in West Haven, I noticed many dead horseshoe crab on the sand. One of them had a tag, referring to #2859 and a phone number to report the find.   Back to the office, I learnt that the Maryland Fishery Resources Office has…

Mesmerizing GIFs of Breathing Earth

The biodiversity of Earth as we know it is made up of millions of species—from Baobab trees to narwhals to tiny anemones attached to the ocean floor. But can we think of Earth in a holistic way, as one living entity of its own, instead of the sum of its parts? This is what John…

August 11, 2013: Holding our Breath in Underwater Caves, Biking Across Kyrgyzstan Mountains, and More

Join us this week, as we explore the labyrinth of underwater caves deep under Mexico’s Yucatan Peninsula for clues of its Mayan past, cycle solo through Central Asian mountain passes to climb remote peaks, and debunk American historical myths from the Wild West to the Surfin’ Safari.

Humbling Views of Earth from Distant Spacecraft

The solar system just got a bit smaller thanks to two awe-inspiring portraits of Earth and the moon taken from nearly the opposite sides of the solar system. On Friday July 19th, Earth got a great two for one deal. Both NASA’s Cassini spacecraft at Saturn, nearly 900 million miles (1.5 billion kilometers) away, and…

On Friday, Earth Photobombs Saturn Shot

Prepare to have your picture taken from nearly a billion miles away.  On Friday, July 19, the Cassini spacecraft currently orbiting Saturn will look back towards the sun and take a cosmic family portrait of the back-lit ringed world with distant Earth beside it. (Get Time of Event from Around the World.) The event is…