To dark matter and dark energy, add dark galaxies — collections of stars so sparse and faint that they are all but invisible.
Tag: Gravitation and Gravity
The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find
Radio telescopes around the world picked up a telltale hum reverberating across the cosmos, most likely from supermassive black holes merging in the early universe.
Physicists Create ‘the Smallest, Crummiest Wormhole You Can Imagine’
Scientists used a quantum computer to explore the ultimate escape route from a black hole.
Black Holes May Hide a Mind-Bending Secret About Our Universe
Take gravity, add quantum mechanics, stir. What do you get? Just maybe, a holographic cosmos.
Hear the Weird Sounds of a Black Hole Singing
As part of an effort to “sonify” the cosmos, researchers have converted the pressure waves from a black hole into an audible … something.
Astronomers Find a New Trojan Asteroid Sharing Earth’s Orbit
The Trojan asteroid 2020 XL5, which follows the same path around the sun as our planet, was revealed only after a decade of searching.
A Nobel Prize for Stephen Hawking That Might Have Been
A recent study of black holes confirmed a fundamental prediction that the theoretical physicist made nearly five decades ago. But the ultimate award is beyond his reach.
What to Name a Bunch of Black Holes? You Had Some Ideas.
Recently, astronomers asked aloud which plural term would best suit the most enigmatic entity in the cosmos. The responses were plentiful.
The Most Intimate Portrait Yet of a Black Hole
Two years of analyzing the polarized light from a galaxy’s giant black hole has given scientists a glimpse at how quasars might arise.
Two Black Holes Colliding Not Enough? Make It Three
Astronomers claim to have seen a flash from the merger of two black holes within the maelstrom of a third, far bigger one.