The European Space Agency (ESA) has recently begun choosing candidates for the next large mission launch slots. The first step was the submission of white papers advocating science themes. Out of many candidates, ESA now selected two.
"We had a difficult task in deciding which scientific themes to choose from all of the excellent candidates, but we believe that missions to study the hot, energetic Universe and gravitational waves will result in discoveries of the greatest importance to cosmology, astrophysics, and physics in general," says Catherine Cesarsky, chair of the Senior Survey Committee of the European Space Agency.
The two selected since themes are:
The Hot and Energetic Universe, addressed by the Athena missionhttp://www.the-athena-x-ray...
The Gravitational Universe, addressed by the eLISA missionhttps://www.elisascience.org/