Physics says time travel into the future is not a thought experiment — every astronaut who has orbited Earth has returned a fraction of a second younger than they would have been if they had stayed on the ground

9th Grade Student Asks About Time, Entropy, and General Relativity

A 9th grade student from India asks two physics questions: (1) whether the Second Law of Thermodynamics (entropy always increases) implies t

Closed time-like curves may enable more efficient information transmission backward in time, physicists suggest

This article explores the concept of retrocausality and closed time-like curves (CTCs) in general relativity, examining how sending messages

Exploring the Self-Suppressing Nature of Time Travel

The paper explores the absence of time-travellers by proposing a model suggesting that time travel is self-suppressing, rather than due to t

Fly Me to the Moon

Study calculates how much information could be sent backward in time through closed timelike curves

This article explores the theoretical possibility of sending information backward in time through closed timelike curves (CTCs) — exotic spa

Physicists rethink quantum mechanics to include gravity in pursuit of a theory of everything

This article explores a paradigm shift in theoretical physics where researchers are reconsidering the traditional approach to a "theory of e