Will Earth eventually spiral into the Sun due to gravitational waves?
The Enemy’s Gate Is Down
The equator of the Earth moves at more than 1,000 mph, so why don’t things at the equator fly into space?
Einstein’s Top
Einstein said everything falls at the same rate. Is that also true for a quantum top?
Seeing Gravitational Waves With Atomic Clocks
Atomic clocks could be used to observe gravitational waves in a new way.
A More Perfect Union
The second detection of a black hole merger confirms the success of gravitational wave astronomy.
LIGO In Space
LISA Pathfinder has made its first successful test of gravitational wave astronomy.
Looking For Higher Dimensions In Gravity
Some theories predict the existence of higher dimensions. With sensitive gravitational experiments we can test that idea.
Conforming To Gravity
There are lots of efforts to derive a quantum theory of gravity. One of these is known as conformal gravity.
Breaking Bad
A new black hole model will not “break” relativity.