Piotr Orleanski

TL;DR: The Heterodyne Instrument for the Far-Infrared (HIFI) was launched onboard ESA's Herschel Space Observatory in May 2009 as mentioned in this paper, which is a set of 7 heterodyne receivers that are electronically tuneable, covering 480-1250 GHz with SIS mixers and the 1410-1910 GHz range with hot electron bolometer mixers.

TL;DR: In this paper, the calibration and in-orbit performance of the Heterodyne Instrument for the Far-Infrared (HIFI) is described based on a combination of ground and in flight tests.

TL;DR: The Large Observatory For X-ray Timing (LOFT) was selected by the European Space Agency (ESA) Cosmic Vision Theme "Matter under extreme conditions", namely: does matter orbiting close to the event horizon follow the predictions of general relativity? What is the equation of state of matter in neutron stars? LOFT, selected by ESA as one of the four Cosmic Vision M3 candidate missions to undergo an assessment phase, will revolutionise the study of collapsed objects in our galaxy and of the brightest supermassive black holes in active galactic nuclei.

TL;DR: The enhanced X-ray Timing and Polarimetry mission—eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism and will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects.

TL;DR: Theseus as mentioned in this paper is a space mission concept aimed at exploiting Gamma-Ray Bursts for investigating the early Universe and at providing a substantial advancement of multi-messenger and time-domain astrophysics.