Gravity
Hello, world! A new approach for physics in de Sitter space  PHYS.ORG · 7 hours
For decades, physicists have been attempting to reconcile quantum mechanics, the physics of the very small, with gravity, the physics of the very large. While many... more
Hello, world! A new approach for physics in de sitter space  SCIENCE DAILY · 8 hours
For decades, physicists have been attempting to reconcile quantum mechanics, the physics of the very small, with gravity, the physics of the very large. While many... more
From primordial black holes new clues to dark matter  PHYS.ORG · 10 hours
Primordial black holes (PBHs) are objects that formed just fractions of a second after the Big Bang, considered by many researchers among the principal candidates in explaining the nature of... more
Gravity surveys using a mobile atom interferometer  PHYS.ORG · 1 day
Mobile gravimetry is an important technique in metrology, navigation, geodesy and geophysics. Although atomic gravimeters are presently used for accuracy, they are constrained by instrumental fragility and complexity. In a new study, Xuejian Wu... more
Dusty vacuums may be astronauts' biggest health risk  PHYS.ORG · 1 day
Human lungs have proven to be remarkably adaptable to life in space, but dust may their biggest challenge, even greater than the lack of gravity, according to a leading aerospace medicine expert,... more
The galaxy cluster Abell 959  PHYS.ORG · 1 day
Most galaxies lie in clusters containing from a few to thousands of objects. Our Milky Way, for example, belongs to the Local Group, a cluster of about fifty galaxies whose other large member is the Andromeda galaxy about... more
NASA's Mars 2020 comes full circle  PHYS.ORG · 4 days
Engineers took NASA's Mars 2020 for a spin on Aug. 29, 2019. The 2,300-pound (1,040-kilogram) Martian vehicle was rotated clockwise and counterclockwise at about 1 revolution per minute on what is called a spin table in... more
Studying flames in microgravity is helping make combustion on Earth cleaner, and space safer  PHYS.ORG · 5 days
Understanding how fire spreads and behaves in space is crucial for the safety of future astronauts and for understanding and... more
First 'overtones' heard in the ringing of a black hole  PHYS.ORG · 5 days
When two black holes collide, they merge into one bigger black hole and ring like a struck bell, sending out ripples in space and time called gravitational waves.... more
A Goldilocks zone for planet size  SCIENCE DAILY · 6 days
Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low-gravity planets. This research expands the search... more
Scientists detect the ringing of a newborn black hole for the first time  PHYS.ORG · 6 days
If Albert Einstein's theory of general relativity holds true, then a black hole, born from the cosmically quaking collisions of two massive... more
Gravity surveys using a mobile atom interferometer  Science Magazine · 2 weeks
Mobile gravimetry is important in metrology, navigation, geodesy, and geophysics. Atomic gravimeters could be among the most accurate mobile gravimeters but are currently constrained by being complex and fragile. Here, we demonstrate a mobile... more
Melatonin promises to help reduce bone loss in space flight  NEWS MEDICAL · 2 weeks
New research suggests that the problem of bone loss caused by microgravity conditions in space flight may be successfully treated using the time-tested drug melatonin. Melatonin increases the... more
Sensor used at CERN could help gravitational wave hunters  PHYS.ORG · 2 weeks
It started with a relatively simple goal: create a prototype for a new kind of device to monitor the motion of underground structures at CERN. But the project—the result of... more
Sensor used at CERN could help gravitational-wave hunters  CERN · 3 weeks
Sensor used at CERN could help gravitational-wave hunters Ana Lopes achintya Fri, 08/30/2019 - 15:16 Aerial view of the Advanced... more
Astronomers detect an ultracompact X-ray binary using OGLE  PHYS.ORG · 3 weeks
Polish astronomers have detected a new ultracompact X-ray binary as part of the Optical Gravitational Lensing Experiment (OGLE). The newly found binary, designated OGLE-UCXB-01, is an unusual periodic variable object with a... more
Astronomers find a golden glow from a distant stellar collision  PHYS.ORG · 3 weeks
On August 17, 2017, scientists made history with the first direct observation of a merger between two neutron stars. It was the first cosmic event detected in both... more
Microgravity Changes Brain Connectivity: What Happens to the Human Brain in Weightlessness  ASTRO WATCH · 3 weeks
An international team of Russian and Belgian researchers has found out that space travel has a significant impact on the brain: they discovered that... more
Quantum gravity's tangled time  SCIENCE DAILY · 4 weeks
The theories of quantum mechanics and gravity are notorious for being incompatible, despite the efforts of scores of physicists over the past fifty years. However, physicists have now combined the key elements of the two theories describing the flow of... more
Quantum gravity's tangled time  PHYS.ORG · 4 weeks
The theories of quantum mechanics and gravity are notorious for being incompatible, despite the efforts of scores of physicists over the past fifty years. However, recently an international team of researchers led by physicists from the University of Vienna, the... more
A heavyweight candidate for dark matter  PHYS.ORG · 4 weeks
Almost a quarter of the universe stands literally in the shadows. According to cosmologists' theories, 25.8% of it is made up of dark matter, whose presence is signaled essentially only by its gravitational pull. What this... more
Black hole holograms  SCIENCE DAILY · 4 weeks
Researchers show how a holographic tabletop experiment can be used to simulate the physics of a black hole. This work may lead the way to a more complete theory of quantum gravity that harmonizes quantum mechanics and relativity. more
Microgravity in space and its effects on the brain  NEWS MEDICAL · 4 weeks
Researchers from Russia and Belgium have found that space travel that leads to microgravity situations may have a significant effect on the brains of humans. Cosmonauts who travel in space... more
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MORE SCIENCE VIDEO
First 'overtones' heard in the ringing of a black hole
PHYS.ORG
Studying flames in microgravity is helping make combustion on Earth cleaner, and space safer
PHYS.ORG
Gravitational wave detectors might be able to detect dark matter particles colliding with their mirrors
PHYS.ORG
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