 
	The X-rays in the Multi-wavelength, Multi-Messenger Era SWG will be responsible for identifying outstanding science questions with synergies with other space- and ground-based observatories such as WFIRST and LSST as well as gravitational wave detectors, developing a compelling science case, and aiding the STDT with producing a mission concept that best addresses these questions.
| Science Working Group Co-Chairs:: | ||
| Robert Petre | NASA/Goddard Space Flight Center | |
| Randall Smith | Smithsonian Astrophysical Observatory | |
| Science Working Group Members: | ||
| Vallia Antoniou | Smithsonian Astrophysical Observatory | |
| Esra Bulbul | MIT | |
| Becky Canning | KIPAC/Stanford University | |
| Chien-Ting Chen | The Pennsylvania State University | |
| Valerie Connaughton | USRA | |
| Ashkbiz Danehkar | Harvard-Smithsonian Center for Astrophysics | |
| Yuichiro Ezoe | Tokyo Metropolitan University | |
| Abe Falcone | Penn State University | |
| Federico Fraschetti | University of Arizona | |
| Suvi Gezari | University of Maryland | |
| Richard Griffiths | U. Hawaii at Hilo | |
| Hans Guenther | MIT | |
| David Kieda | University of Utah | |
| Albert Kong | National Tsing Hua University | |
| Michael Koss | Eureka Scientific | |
| Peter Maksym | Harvard-Smithsonian Center for Astrophysics | |
| Adam Mantz | Stanford University | |
| Herman Marshall | MIT Kavli Institute | |
| Michael McCollough | CXC/SAO/CfA | |
| Patrick Motl | Indiana University Kokomo | |
| Frits Paerels | Columbia University | |
| Alberto Sadun | University of Colorado Denver | |
| Marcos Santander | Barnard College, Columbia University | |
| Gregory Sivakoff | University of Alberta | |
| Francesco Tombesi | University of Maryland, College Park | |
| Eleonora Troja | UMD, NASA/GSFC | |
| Sara Turriziani | RIKEN, Japan | |
| Tonia Venters | NASA Goddard Space Flight Center | |