Naman Kumar, a PhD student at the Indian Institute of Technology, has proposed the twin universe theory to explain the universe's rapid expansion, challenging the long-held dark energy hypothesis. His research suggests that our universe may exist alongside an 'anti-universe,' which exerts a gravitational influence that accelerates both universes' expansion. Kumar's theory, grounded in quantum physics, posits that every particle of matter formed during the Big Bang was accompanied by a corresponding particle of anti-matter, leading to the simultaneous creation of our universe and an anti-universe. This concept revitalizes discussions around the multiverse and quantum entanglement, proposing that the dual existence of these universes could account for the observed cosmic acceleration without invoking dark energy. If validated, Kumar's work could reshape our understanding of cosmology and the fundamental nature of reality. His findings are detailed in recent papers published in 'Gravitation and Cosmology' and 'Europhysics Letters'.