Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...

New research published in Physical Review Letters suggests that superconducting magnets used in dark matter detection ...

For an example of gravitational potential energy, consider a book placed on top of a table. To raise the book from the floor to the table, work must be done, and energy supplied.

This energy loss causes the black holes to draw together and emit gravitational waves faster and faster — that is, until the ...

For example, the cable car gained potential energy as it rose into the mountains. of the object. Gravitational potential energy is the energy an object has by virtue of its position above the ...

“Primordial gravitational waves from inflation may lead to an appreciable contribution to the energy density of dark radiation in the early Universe, which is a prediction that can be tested in ...

Figure 2: Examples of gravitational-lensed images observed with the Hubble Space Telescope. Left: 2M130-1714, in which the four bright and bluish points comprise the quadruply-lensed images of the ...

This energy loss causes the black holes to draw together and emit gravitational waves faster and faster — that is, until the gravity of these cosmic titans takes over, and they collide and merge.