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Our Milky Way: Double KO punch in two galactic collisions – astronomers

A research team from Britain's Durham University predicts that another galaxy will collide with the Milky Way much sooner than expected and launch our solar system into space. "There is little chance that we will get away with it" The collision between the two galaxies that could throw us out of the Milky Way into interstellar space, "said Marius Cautun, …

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Milky Way for a double victory of galaxy collisions

Enlarge / A simulation of the galaxies that form in the early Universe. By chance, some of them experience a similar story to the Milky Way. If our knowledge of galaxy structures were limited to the Milky Way, we would do much wrong. The Milky Way is unusual. It has a smaller black hole in the middle than other galaxies …

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Huge collisions shake the cosmos

Whenever a new instrument was invented to study the sky, astronomers had to rethink their understanding of the cosmos. More recently, scientists have triggered a revolution in astronomy by finding out how gravitational waves can be observed using lasers and mirrors using a new technology. Black holes are the shells of massive stars whose gravity is so strong that not …

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Scientists detect gravitational waves from 4 new black-hole collisions

Astronomers have now made more gravitational wave observations than they can count on their fingers. LIGO and Virgo gravitational-wave observatories scientists report four new groups of these waves in space-time. These additions bring the total to 11, the researchers say in a study published on December 3 on arXiv.org. This represents a major advance since the first gravitational wave detection …

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Galactic collisions bounce over eons to form our view of the cosmos

For centuries man has seen the cosmos as something stable and static. But we are increasingly learning that this is not the case. "We see that the universe is much more active, in contrast to the view of ancient astronomers that things were much more passive," says Eric Chaisson, astrophysicist at the Harvard-Smithsonian Center for Astrophysics. Take, for example, our …

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Huh? Carbon dioxide emissions increase the risk of satellite collisions

In February 2009, two space satellites collided at a speed of nearly 17,000 mph at an altitude of 482 miles over Siberia. One was an operational US communications satellite, Iridium-33. The other was a heavy, obsolete Russian military satellite called Cosmos-2251. For space scientists, the collision was a rude awakening to a disturbing kind of new mathematics. The ultra-high-speed collision …

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Tenants in Los Angeles are increasingly involved in rent collisions in the midst of the real estate crisis

LOS ANGELES – A few dozen working-class tenants hopped into their vehicles here and built a caravan to drive to affluent Orange County. After a one-hour drive in late May, the group converged on the sidewalk in front of a two-storey Spanish-tiled Spanish house by Gina Kim – the daughter of her landlord. Chung Suk Kim bought the seven-story apartment …

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Computer simulations show that the inner moons of Saturn receive their peculiar forms of collisions and mergers

The inner moons of Saturn are among the strangest places in the solar system. A new study shows how they probably got their special shapes. Previously, scientists had no formal explanation of why Saturn's inner moons have peculiar shapes. A new study has shown that collisions and merges between the moonlets were probably the shapes. The study was published on …

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