We are entering a new era of comprehension of the Universe, by seeing it in gravitational waves, neutrinos, and in the extremes of electromagnetic spectrum. How will this change the understanding of the Universe, physics, and spacetime in the 21st century? Tomasz Bulik – is a professor at the Astronomical Observatory at the University of Warsaw. He is also involved the preparation of the next generation gravitational wave observatory – the Einstein Telescope. Currently he is working on properties of binary gravitational wave sources and also on reduction of low frequency noise in the VIRGO detector. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx