Observation: Before September 14, 2015, the most sensitive detectors had not directly detected the tiny stretching - shrinking of
spacetime caused by a massive object moving.
Using physics equations provided by Thorne, the company's computers mapped the paths of millions of rays of light through the warped
spacetime caused by a fictional black hole.
On August 17, 2017, the LIGO and VIRGO gravitational - wave observatories combined to locate the faint ripples in
spacetime caused by the merger of two superdense neutron stars.
Not exact matches
Gravity is
caused when mass puckers the fabric of
spacetime.
In 1915, Einstein explained that gravity arises because massive bodies warp space and time, or
spacetime,
causing free - falling objects to follow curved paths such as the arc of a thrown ball or the elliptical orbit of a planet around its sun.
A massive object, such as the sun, would create a dent in
spacetime, a gravitational well,
causing any surrounding objects, such as the planets in our solar system, to follow a curved path around it.
Gravitational lenses occur when very massive objects — such as clusters of galaxies — warp
spacetime around them,
causing light (and anything else) traveling nearby to take a curved path.
What
causes this mismatch of the two flat
spacetime regions is the large
spacetime curvature in the bubble wall that separates the regions.
You know, for instance around Earth, you can think of gravity as forming a kind of a well around Earth, which
causes the things that pass near Earth, the moon I would say, which is orbiting on its path, to stay within the vicinity because it falls into that gravity well, metaphorically speaking; and in likewise the same way this astronaut that is fictitiously described by our good mathematics professor takes a journey through curved
spacetime.
The event, reported last October, marked the fifth observation of gravitational waves — ripples in the very fabric of
spacetime,
caused by huge cosmic cataclysms.
Has anyone thought what propagates these waves (like is it dark matter or dark energy) and I wonder how much they affect the sun and earth - given they stretch / squeeze
spacetime, could they slow the earth spin, flip poles, agitate fault lines as well as volcanic activity and heat up the sun
causing more flares, etc..
This twisting and stretching of the local
spacetime should
cause the gryroscopes in Gravity Probe B to get out of alignment as it orbited the Earth.
In April 2007, the scientists announced that they detected the predicted shift
caused by the stretching of
spacetime (the «geodetic effect»).
Gravitational waves were discovered only in 2016 and the first detection of these ripples in
spacetime were
caused by the collision of black holes.
After another two and a half years of data analysis, they announced in September 2009 that they were able to extract out the much smaller effect
caused by the twisting of
spacetime (the «frame - dragging effect»).
It's a point of infinite density and infinite gravity,
causing an infinite curvature in
spacetime.
Updated, 11:51 p.m. Sustained large investments in fundamental science paid off in a big way last week, as Dennis Overbye so beautifully reported in The Times's package on confirmation of Einstein's 1916 conclusion that massive moving objects
cause ripples in
spacetime — gravitational waves.