The Transient High-Energy Sky and Early Universe Surveyor


  • E. Bozzo Department of Astronomy, University of Geneva
  • L. Amati INAF-OAS Bologna
  • O. O’Brien Department of Physics and Astronomy, University of Leicester
  • D. Gӧtz CEA, Universit (c) Paris-Saclay



THESEUS, space mission concept, ESA, M5, gamma-ray bursts, cosmology, gravitational waves, multi-messenger astrophysics


The Transient High-Energy Sky and Early Universe Surveyor (THESEUS) is a mission concept developed in the last years by a large European consortium and currently under study by the European Space Agency (ESA) as one of the three candidates for next M5 mission (launch in 2032). THESEUS aims at exploiting high-redshift GRBs for getting unique clues to the early Universe and, being an unprecedentedly powerful machine for the detection, accurate location (down to ∼arcsec) and redshift determination of all types of GRBs (long, short, high-z, under-luminous, ultra-long) and many other classes of transient sources and phenomena, at providing a substantial contribution to multi-messenger time-domain astrophysics. Under these respects, THESEUS will show a strong synergy with the large observing facilities of the future, like E-ELT, TMT, SKA, CTA, ATHENA, in the electromagnetic domain, as well as with next-generation gravitational-waves and neutrino detectors, thus greatly enhancing their scientific return.


L. Amati, P. O'Brien, D. G?otz, et al. The THESEUS space mission concept: Science case, design and expected performances. Adv. in Space Research 62, 191 (2018).

G. Stratta, R. Ciolfi, L. Amati, et al. THESEUS: A key space mission concept for multi-messenger astrophysics. Adv. in Space Research 62, 662 (2018).




How to Cite

Bozzo, E., Amati, L., O’Brien, O., & Gӧtz D. (2019). The Transient High-Energy Sky and Early Universe Surveyor. Ukrainian Journal of Physics, 64(7), 548.



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