gravity
Latest about gravity
![Artist depiction of a supernova explosion in space.](https://cdn.mos.cms.futurecdn.net/xre97vzWfeatQDcbTzNZiA-320-80.jpg)
What is the cosmological constant?
By Adam Mann published
What we know about the history and properties of "Einstein's biggest mistake," the cosmological constant
![An illustration of a clock spiraling into space-time.](https://cdn.mos.cms.futurecdn.net/xiUnaAaEfeDmy7QDsB27fc-320-80.jpg)
'Spooky action at a distance' could create a nearly perfect clock
By Yasemin Saplakoglu published
Quantum entanglement could in theory lead to extremely precise clocks that can hunt for subtle disturbances in space-time.
![Bumblebee gravity could be proven true if scientists find that a black hole’s shadow is smaller than existing physics theories would predict.](https://cdn.mos.cms.futurecdn.net/bF8dQx39A5euWRj5JY3TnL-320-80.jpg)
'Bumblebee gravity' could explain why the universe is expanding so quickly
By Paul Sutter published
Bumblebee gravity could explain dark energy — if it's proven true.
![the first ever direct image of a black hole, with yellow ring surrounding black circle](https://cdn.mos.cms.futurecdn.net/4CtxqzTRTSJ6KnK2h4XqpT-320-80.jpg)
Are primordial black holes really giant gravitinos?
By Paul Sutter published
New research proposes that the first black holes came from clumps of gravitinos, exotic, hypothetical particles that managed to survive the first chaotic years of the Big Bang.
![arches of chaos close-up](https://cdn.mos.cms.futurecdn.net/FXrMXWmrg3cbVK8y37uqPj-320-80.jpg)
Invisible 'arches of chaos' span the solar system
By Rafi Letzter published
Scientists have mapped the "arches of chaos:" a vast network of arching structures filling the solar system that could one day aid space travel.
![Abstract concept of string theory.](https://cdn.mos.cms.futurecdn.net/wrtFeTSRSjptb4S48gKJc6-320-80.jpg)
Physicists attempt to unify all forces of nature and rectify Einstein's biggest failure
By Paul Sutter published
Einstein's failed dream could ultimately become his ultimate triumph, as a small group of theoretical physicists rework his old ideas to explain the most pressing issues of modern science.
![Taken with a fish-eye lens, this image shows the Compact Muon Solenoid (CMS) detector assembly in a tunnel of the Large Hadron Collider (LHC).](https://cdn.mos.cms.futurecdn.net/HPPdfUvEuBEYQy2wbHUqXa-320-80.jpg)
World's largest atom smasher could seed microscopic black holes
By Paul Sutter published
If teensy black holes could be produced inside the world's largest atom smasher, the Large Hadron Collider, that would be a boon for physics.
![the first ever direct image of a black hole, with yellow ring surrounding black circle](https://cdn.mos.cms.futurecdn.net/4CtxqzTRTSJ6KnK2h4XqpT-320-80.jpg)
Physicists keep trying to break the rules of gravity but this supermassive black hole just said 'no'
By Rafi Letzter published
A new test of Albert Einstein's theory of general relativity has proved the 20th Century physicist right again, this time using a supermassive black hole.
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