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General Physics 45 minutes ago

Adieu, Le Grand K: The kilogram to be redefined for the first time in 130 years

In a subterranean vault in a suburb of Paris lies a small, rarely seen metal cylinder known as Le Grand K.

Astronomy May 16, 2019

Elliptical galaxies shed new light on dark matter

In the 1930s, it was first noticed that the dynamics of astrophysical objects (galaxies, galaxy clusters and the universe itself) required an invisible and unknown form of mass, known now as dark matter. Strong mass discrepancies ...

Astronomy May 16, 2019

Galaxy blazes with new stars born from close encounter

The NASA/ESA Hubble Space Telescope has taken a new look at the spectacular irregular galaxy NGC 4485, which has been warped and wound by its larger galactic neighbour. The gravity of the second galaxy has disrupted the ordered ...

Astronomy May 16, 2019

Hubble astronomers assemble wide view of the evolving universe

Astronomers have put together the largest and most comprehensive "history book" of galaxies into one single image, using 16 years' worth of observations from NASA's Hubble Space Telescope.

Astronomy May 13, 2019

Forecasting the hunt for the first supermassive black holes

It is believed that the formation and growth of most galaxies across the history of the universe has been fueled by supermassive black holes growing together with their host galaxy as they collect matter to attain millions ...

Astronomy May 16, 2019

CosmoGAN: Training a neural network to study dark matter

As cosmologists and astrophysicists delve deeper into the darkest recesses of the universe, their need for increasingly powerful observational and computational tools has expanded exponentially. From facilities such as the ...

Astronomy May 16, 2019

Imaging black hole like listening to broken piano, says scientist

US computer scientist Katie Bouman, who became a global sensation over her role in generating the world's first image of a black hole, has described the painstaking process as akin to listening to a piano with broken keys.

Astronomy May 13, 2019

The building blocks for astronomically literate citizens

What does it mean for a citizen to be literate in astronomy? Astronomers who participate in outreach to the general public experience various degrees of astronomical knowledge among people. But so far, there had not been ...

Astronomy Apr 30, 2019

Chemical evidence shows how a dwarf galaxy contributes to growth of the Milky Way

Small stellar systems like dwarf galaxies are thought to be the main building blocks of the Milky Way. However, it is unclear how many and what kind of stars in our galaxy originated from satellite dwarf galaxies.

Consumer & Gadgets Apr 30, 2019

Samsung denies new Galaxy phone burnt from malfunctioning

Samsung on Tuesday stood by its new Galaxy S10 5G model after a South Korean smartphone owner posted pictures online of a charred handset claiming it had mysteriously "burnt".

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