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31-40 results from 862 for query «galaxies»

February 12, 2016 3:02 PM The Detection of Gravitational Waves Is a Triumph for Physics

It initiates a new phase in the exploration of the universe and in our search for the physical laws that govern it Yesterday's announcement by the international LIGO collaboration of the direct detection of gravitational radiation on September 14, 2015, initiates a new phase in the exploration of the universe and our search for the physical laws that govern 51

February 12, 2016 12:55 PM The Daily 202: Hillary Clinton won last night’s debate by making it all about Barack Obama

The super PAC ad in South Carolina presents her as the natural heir to Barack Obama. Produced by an African American media firm in St. Louis, a narrator says: "We need a president who will build on all that President Obama has done. President Obama trusted Hillary Clinton to be America's secretary of state.” The mobilization effort for Super Tuesday 38

February 12, 2016 11:06 AM Gravitational waves discovered—top scientists respond

One hundred years ago, Albert Einstein published his general theory of relativity, which described how gravity warps and distorts space-time. While this theory triggered a revolution in our understanding of the universe, it made one prediction that even Einstein doubted could be confirmed: the existence of gravitational waves. Here we collect reactions 79

February 11, 2016 3:30 PM Cosmic breakthrough: Physicists detect gravitational waves from violent black-hole merger

Scientists announced Thursday that, after decades of effort, they have succeeded in detecting gravitational waves from the violent merging of two black holes in deep space. The detection was hailed as a triumph for a controversial, exquisitely crafted, billion-dollar physics experiment and as confirmation of a key prediction of Albert Einstein's General 72

February 11, 2016 3:30 PM Scientists Glimpse Albert Einstein's Gravitational Waves

Washington, United States: In a landmark discovery for physics and astronomy, international scientists said Thursday they have glimpsed the first direct evidence of gravitational waves, or ripples in space-time, which Albert Einstein predicted a century ago. When two black holes collided some 1.3 billion years ago, the joining of those two great masses 60

January 28, 2016 11:25 PM Where were you during the Challenger disaster?

Astronaut: Challenger crew would be proud January 28 marks three decades since the space shuttle Challenger disaster claimed the lives of its entire crew. On board were seven team members who perished in the wreck, mission specialists Ellison S. Onizuka, Ron McNair and Judith Resnick, payload specialist Greg Jarvis, pilot Mike Smith, commander Dick Scobee 53

January 15, 2016 9:58 PM Spaced out: From colliding galaxies to massive black holes

While one galaxy is tearing itself apart, another pair of galaxies are colliding with each other, according to NASA. And closer to home, the second-largest black hole in our galaxy was recently discovered. In the first instance, at the center of a far-off galaxy 12.4 billion light-years from Earth, a ravenous black hole is devouring everything around 44

January 14, 2016 7:16 PM This suspected supernova is 570 billion times brighter than our sun

A small, bright object that first flared up in June could be the brightest, most powerful supernova ever spotted by astronomers. If it is indeed a supernova, the object ASASSN-15lh pushes the upper limits of what scientists thought exploding stars were capable of. And if it's not a super-charged supernova, it may be something even more mysterious. The brilliant 56

January 11, 2016 7:09 PM The Source: Burping Black Holes Change Understanding of Celestial

Nothing escapes the black hole, or so we thought. According to new findings from the National Aeronautical and Space Administration, the agency - using the powerful Chandra X-ray Observatory - has seen violent eruptions from a black hole in a nearby galaxy. The outbursts came as two galaxies merge. "For an analogy, astronomers often refer to black holes 104

January 9, 2016 12:06 PM Space Photos of the Week: A Supermassive Black Hole Burps

This image, constructed from more than six years of observations by NASA's Fermi Gamma-ray Space Telescope, is the first to show how the entire sky appears at energies between 50 billion (GeV) and 2 trillion electron volts (TeV). A diffuse glow fills the sky and is brightest in the middle of the map, along the central plane of our galaxy. The famous 91