Gravitational Waves Discovered from Colliding Black Holes

Gravity

A team of physicists announced that they had heard and recorded the sound of two black holes colliding a billion light years away. Albert Einstein first predicted gravitational waves in 1916 based on his general theory of relativity, and scientists began seeking these ripples in spacetime in the 1960s but none succeeded in measuring their effects on Earth until now. Gravitational waves are ripples in the fabric of space-time that Einstein predicted a century ago. This is one of the major breakthroughs in physics that we all hoped to prove. It opens the doors to many more theories and lays a solid foundation to help further our knowledge of our Universe

Asteroid Won’t Hit Earth, But Don’t Rule Out Communication Satellites

2012Asteroid.jpgAsteroid 2012 DA14 is about half the width of a football field (150 feet) and will fly within 17,200 miles of our planet on Friday, Feb. 15, zooming closer to the planet than the ring of satellites in geosynchronous orbit. While Earth is safe from 2012 DA14, an asteroid that size would do a lot of damage if it did impact our planet. A similar-sized rock slammed into Tunguska,  Siberia, in 1908, and flattened some 500,000 acres of forest over an area about the size of Tokyo.

NASA’s Curiosity Mars Rover Landing


Curiosity begins a two-year investigation of whether Mars is or ever was capable of supporting microbial life.

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