Ph. Jetzer

TL;DR: The first results of the LISA Pathfinder in-flight experiment demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with a relative acceleration noise with a square root of the power spectral density.

TL;DR: This performance provides an experimental benchmark demonstrating the ability to realize the low-frequency science potential of the LISA mission, recently selected by the European Space Agency.

TL;DR: The eLISA mission as discussed by the authors is the first mission to study the entire universe with gravitational waves, and it will offer a wide view of a dynamic cosmos using gravitational waves as new and unique messengers to unveil The Gravitational Universe.

TL;DR: In this article, an upper bound on the local dark matter density, ρDM 3 × 10 −16 kg m −3 at the 2σ confidence level, was derived from accurate planetary astrometric data.

TL;DR: In this paper, an upper bound on the local dark matter density in the solar system was derived from radio ranging observations of outer planets with an accuracy of few tenths of a meter, which could either give positive evidence of dark matter or disprove modifications of gravity.