#gravity
Science & Technology | Cool Stuff
Scientists are using quantum squeezing to push the limits of their sensors | MIT Technology Review
Physicists are engineering where uncertainty shows up in quantum systems, which has applications for detecting gravitational waves, and potentially more mainstream uses, including quantum computers, navigation, and microscopy.
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Graviton: We've glimpsed something that behaves like a particle of gravity | New Scientist
Gravitons, the particles thought to carry gravity, have never been seen in space – but something very similar has been detected in a semiconductor
Science & Technology | Science
What is quantum gravity?
Quantum gravity is an attempt to unite the incompatible worlds of quantum mechanics and gravity. We explore it in more detail here.
Science & Technology | Science
Mind-Blowing Experiment Reveals Antimatter Falls in Gravity
As far as gravity is concerned, both matter and its charge-flipped 'mirror' twin, antimatter, deserve a big, warm hug.
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An Enormous Gravity ‘Hum’ Moves Through the Universe | Quanta Magazine
Astronomers have found a background din of exceptionally long-wavelength gravitational waves pervading the cosmos. The cause? Probably supermassive black hole collisions, but more exotic options can’t be ruled out.
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Astronomers announce major discovery about gravitational waves - The Washington Post
The claim of a gravitational wave background suggests the universe is constantly roiled by violent events that happened over the past 13 billion years.
Science & Technology | Science
Why is gravity so weak? The answer may lie in the very nature of space-time
The answer to the question "why is gravity so weak?" may lie in the very nature of space-time
Science & Technology | Science
Here’s why everything you thought you knew about gravity is wrong
Unless you think hard about gravity, your brain associates gravity with your relationship to the ground beneath your feet
Science & Technology | Science
NASA Study Subjects Are Getting Paid $18,500 to Stay in Bed for Two Months | Mental Floss
NASA and ESA are testing the effectiveness of artificial gravity by paying 24 lucky volunteers to stay in bed all day.
Science & Technology | Science
If the Moon is Gradually Moving Farther Away From Us, Will Its Gravitational Pull Ever Cease on Earth? | Mental Floss
Theoretically, the Moon could move far enough away to no longer have a hold on Earth. But quite a number of other big events would likely take place first.
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Are We Closer to Finding a Fifth Dimension?
The discovery of gravitational waves toppled what we thought we knew about dimensions.
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Free-fall experiment could test if gravity is a quantum force
The effort to reconcile general relativity with quantum mechanics always hits one snag: gravity. An experiment could finally tell us if it is a quantum force
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In A First, Scientists Spot Light Amid Gravitational Waves Emitted By Colliding Stars
Scientists for the first time have detected both gravitational waves and light from the collision of two dead, incredibly dense neutron stars.
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A fourth gravitational wave has been detected
And we've pinpointed its location better than ever before.
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Gravity Could Be the Result of Random Quantum Fluctuations
A new theory takes a feature of a quantum mechanical model and shows how it can generate gravity.
Science & Technology | Cosmic Research
The Matter with Dark Matter
How do scientists know there's a mysterious substance called "dark matter" that dominates our universe? An astrophysicist explains.
Science & Technology | Cool Stuff
Exclusive: We may have detected a new kind of gravitational wave
Rumours are swirling of a new kind of gravitational wave, created by colliding neutrons stars, rather than black holes. Now Hubble has joined the hunt
Science & Technology | Cool Stuff
Was It All Just Noise? Independent Analysis Casts Doubt On LIGO's Detections
The LIGO team just recently announced their third robust event, consistent with merging black holes. But an unexplained effect might mean this isn't signal, but simply noise instead.
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New theory explains gravity better than Einstein's relativity
Dark matter and dark energy aren't needed to explain large-scale gravitational movements under the new theory.
Science & Technology | Cool Stuff
Gravitational waves may reveal stringy Universe | Ars Technica
Pattern of gravitational waves may reveal string theory's remnant strings.
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Looking For Higher Dimensions In Gravity - Forbes
Some theories predict the existence of higher dimensions. With sensitive gravitational experiments we can test that idea.
Science & Technology | Cool Stuff
Hunt Continues for Gravitational Waves from Black Hole Megamergers
The sound of merging supermassive black holes does not saturate the universe.
Science & Technology | Cool Stuff
NASA has detected a burst of light that might be linked to one of the most monumental space discoveries ever made
In September, physicists made a monumental discovery that opened up a new window to the universe...
Science & Technology | Cosmic Research
The 12 Greatest Challenges for Space Exploration | WIRED
From space madness to crash landings, here's how we'll beat the 13 most difficult challenges to space exploration.
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A Radical Reinterpretation of Einstein’s Theory — NOVA Next | PBS
A cadre of physicists working on the theory of shape dynamics could change our understanding of reality.
Science & Technology | Cosmic Research
Are Space and Time Discrete or Continuous? - The Nature of Reality — The Nature of Reality | PBS
Split a mile in half, you get half a mile. Split the half mile, you get a quarter, and on and on, until you’ve carved out... Read Full Post
Science & Technology | Cool Stuff
Detecting Ripples in Space-Time, with a Little Help from Einstein
It is an observatory of immense scale — two enormous detectors separated by the bulk of the American continent — but that's what's needed for LIGO to ultimately catch black holes colliding and the explosions of stars.
Science & Technology | Cool Stuff
Here's How Long It Would Take To Fall Through The Center Of Earth
Just how long would it take to fall through the center of the Earth, traveling from one side of our planet to the other? Physicists have long calculated the answer to that question as being 42 minutes, but now, new calculations show that the theo...
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Pulsar Observed Wobbling Out Of Space Time - Vanishing Out Of Our Now
Pulsar Observed Wobbling Out Of Space Time - Vanishing Out Of Our Now - amazing astronomical event witnessed by scientists on Earth...
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Physicists propose identification of a gravitational arrow of time
(Phys.org) —A trio of physicists is proposing a new direction for understanding the concept of time. In their paper published in the journal Physical Review Letters, Julian Barbour, of College Farm in the U.K., Tim Koslowski of the University of New Bru
