Rajeswari Rajamanickam

61 Flips | 1 Magazine | @rajeswarira129g | Keep up with Rajeswari Rajamanickam on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Rajeswari Rajamanickam”

SpaceX will try to land a 14-story-tall rocket on this floating barge

The mission is scheduled for Friday and has a 50 percent chance of success<p>SpaceX has announced its next major challenge: landing the first stage of its Falcon 9 rocket on an "autonomous spaceport drone ship" in the Atlantic Ocean. The barge in question (as everyone but Elon Musk is calling it) …

Video: So long, Comet ISON

This video shows Comet ISON’s complete perihelion passage on November 28, 2013. NASA scientists now confirm the comet is longer a comet.<p>The video …

Astronomy

Icy Europa May Have First Evidence For Active Plate Tectonics on an Alien World

SAN FRANCISCO – Scientists may have spotted the first evidence for active plate tectonics on another world. Jupiter's moon Europa is covered in an …

Erik Sofge on Twitter: "The Humanoids Are Here: A gallery of the walking, climbing, driving robots of the DRC http://t.co/Ax2lbl5qeV @popsci http://t.co/3BZ36CZxL3"

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WIRED Space Photo of the Day 2013 | WIRED

Jan. 19, 2014: Solar X-Flare<p>The largest sunspot group of the solar cycle unleashed a large (X1.2 class) flare just when it was facing right towards …

NASA Inc.: Current Woes Don’t Mean Disaster

The agency that could once do no wrong (that would be NASA — back in the glory days) has for a long time now been the agency that can barely put its …

Popular Science on Twitter: "NASA's Chamber A is like space on Earth: http://t.co/pbXREwI5uK http://t.co/WWfeuoOTkH"

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Huddling penguins move like cars in traffic

Long Night Moon of December 16

Daylight is fleeting in the Northern Hemisphere now, but the December 16 full moon helps light up the long, dark night.<p>All full moons have many …

Astronomy

Army Truck Shoots Drones, Mortars With Lasers

Laser defense might be the biggest thing since gunpowder.<p>Named by someone who clearly hated Maryland, the High Energy Laser Mobile Demonstrator (HEL MD) hit 90 incoming mortar rounds and UAVs with a 10 kW laser in November and early December during tests at White Sands Missile Range in New Mexico. …

Military

APOD: Geminid Meteors over Teide Volcano (2013 Dec 17) Image Credit & Copyright: Juan Carlos Casado (TWAN, Earth and Stars) http://apod.nasa.gov/apod/ap131217.html Explanation: On some nights it rains meteors. Peaking two nights ago, asteroid dust streaked through the dark skies of Earth, showering down during the annual Geminids meteor shower. Astrophotographer Juan Carlos Casado captured the space weather event, as pictured above, in a series of exposures spanning about 2.3 hours using a wide angle lens. The snowcapped Teide volcano of the Canary Islands of Spain towers in the foreground, while the picturesque constellation of Orion highlights the background. The star appearing just near the top of the volcano is Rigel. Although the asteroid dust particles are traveling parallel to each other, the resulting meteor streaks appear to radiate from a single point on the sky, in this case in the constellation of Gemini, off the top of the image. Like train tracks appearing to converge in the distance, the meteor radiant effect is due to perspective. The astrophotographer has estimated that there are about 50 Geminids visible in the above composite image -- how many do you see? http://twanight.org/casado http://starryearth.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131217 #APOD #TWAN

Water May Be Flowing On Mars Right Now

Curiosity has uncovered ancient, once-wet lakebeds, but there might be some active streams, too.<p>The intrepid Mars rover Curiosity has already confirmed that water once flowed on Mars, but that it's long since dried up. Still, that doesn't mean there's not flowing water now, too.<p>NASA data has long …

Geoscience

Artificial intelligence: The machines with alien minds

Our smartest machines look nothing like we predicted – has the field lost its way, or do we need to rethink what AI actually means, asks Tom Chatfield.<p>Would modern artificial intelligence live up to the dreams of the field’s founders? Perhaps not. But in many ways, the smartest machines we have …

Artificial Intelligence

Ancient Chinese cat bones shake up domestication theory

A cat-and-mouse game played out in a Chinese village 5,300 years ago is helping scientists understand how wild felines became the tame pets we know today.<p>Scientists believe it was the cat's appetite that led to domestication. Grain stored by ancient farmers was a magnet for rodents, which in turn …

'Blind As A Bat' Isn't Blind At All

Despite the idiom to the contrary, bats are not blind — they have excellent vision. But they own the night because of their sonar. Or do they?<p>By listening for their own bounced-back ultrasonic squeaks, bats can find insects faster than any bird. Yet cave-dwelling, insect-eating bats come out at …

Chinese unmanned spacecraft lands on moon | Reuters

SHANGHAI (Reuters) - China landed an unmanned spacecraft on the moon on Saturday, state media reported, in the first such “soft-landing” since 1976, joining the United States and the former Soviet Union in managing to accomplish such a feat.<p>A boy looks at a golden scale model of China's lunar rover …

Wake Up, Rosetta! Europeans Begin Checklist For Comet Landing

The European Space Agency's Rosetta probe, launched in March 2004, will be awakened from a deep sleep next month in preparation for a rendezvous with comet 67P/Churyumov-Gerasimenko, which will culminate late next year with the first-ever soft landing on such a body.<p>The 6,600-pound spacecraft, …

International Space Station in partial shutdown due to cooling pump problem

Crew members shut down minor systems to reduce power load, though Nasa says issue is not an emergency at the moment<p>A possible coolant leak on the International Space Station has led to a partial shutdown, Nasa has said.<p>Astronauts hope to fix the problem by altering the software. But if that fails, …

NASA Unveils Valkyrie, Its Humanoid Rescue Robot [Video]

The space agency shows off its entry in the DARPA Robotics Challenge.<p>The Boston Dynamics-built ATLAS is the rescue robot prototype that gets all the attention, but now NASA is getting in on the action, unveiling Valkyrie, a 6-foot 2-inch, 275-pound rescue robot. The 'bot, an entrant in the DARPA …

Robotics

One-Way, Manned Mission To Mars Just Got Closer To Reality

Mars One announces deals with Lockheed Martin and SSTL to develop technology to colonize the Red Planet by 2025.<p>Yesterday, Netherlands-based private spaceflight project Mars One announced the companies it hopes will build the technology necessary for the first private mission to Mars. Lockheed …

Mars

Mars One has ethical questions to answer about one-way trip to red planet

Mars One is back in the news. On Tuesday the company held a press conference in Washington DC to announce that it is working with two other companies – Lockheed Martin and Surrey Satellite Technology – to launch a robotic mission to Mars in 2018. The idea is that this unmanned mission will help lay …

Popular Science on Twitter: "First responders can toss this baseball-size device into buildings for fast images of hazards http://t.co/FPUXNMd2C4 http://t.co/dIjaHXMUqd"

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200-Kilometer-High Jets of Water Discovered Shooting From Europa

SAN FRANCISCO — Jupiter’s icy moon Europa may be showing us its insides. Data from the Hubble space telescope suggests that enormous jets of water …

Popular Science on Twitter: "Video: A 3-D–printed, hand-cranked calculator that works via punch cards and rubber bands http://t.co/0m4H1LlX5P http://t.co/7o6AbsXO4i"

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Tech and Science

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ScienceCasts: Geminid Meteors at Dawn