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Scientists spice up old Hubble Telescope image to shine light on spectacular star cluster
By Julian Dossett published
Scientists have released a never-before-seen view of a star cluster, courtesy of the Hubble Space Telescope.

What is dark matter made of? New study bolsters case for 'primordial' black holes
By Paul Sutter published
In the early universe, primordial black holes could acquire a "dark charge," giving them an unnaturally long lifetime, new research suggests. This makes them an interesting candidate for dark matter.

A day on Uranus is actually longer than we thought, Hubble Telescope reveals
By Sharmila Kuthunur published
This approach can now be used to determine the rotation rate of any celestial object with a magnetic field and auroras — including exoplanets.

Nearby star photobombs portrait of a distant galaxy in new Hubble Telescope image
By Samantha Mathewson published
A bright star located in the Milky Way appears nestled in the distant galaxy NGC 5530 due to a chance alignment along the Hubble Space Telescope's line of sight.

Scientists find rare double-star spiral doomed for supernova explosion
By Julian Dossett published
In 23 billion years, these two white dwarf stars will collide. Then, they'll explore. Here's why scientists say this discovery is such a big deal.

'Major disruption' has caused Arctic polar vortex to slide off North Pole, scientists say
By Sascha Pare published
A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

The most powerful explosions in the universe could reveal where gold comes from
By Charles Q. Choi published
Extraordinarily powerful light from gamma-ray bursts might help produce heavy elements from the outer shells of dying stars.

North America is 'dripping' down into Earth's mantle, scientists discover
By Sascha Pare published
Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust above it to "drip" and suck down rocks from across the continent.
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