How do tidal forces shape a planet's orbital evolution, especially for those in the habitable zone? A recently submitted study aims to answer this question, as an international team of researchers ...

This sci-fi concept could one day be a reality, say our readers, however the measurements would need to be exact to avoid ...

Many theories are rock-solid: Scientists have just as much confidence in the theories of relativity, quantum mechanics, ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one problem—such a device would defy the laws of ...

The molecular hydrogen ion H₂⁺ is the simplest molecule. This simplicity makes it a perfect study object for physicists, as ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to ...

Gravitational Interaction, Relativistic Precession, Planetary Ephemerides, Mercury Share and Cite: Bootello, J. (2025) ...

Creating waves: Rainer Weiss pioneered the idea that a laser interferometer could be used to detect gravitational waves. (Courtesy: M Scott Brauer) Weiss was born in Berlin, Germany, on 29 September ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World account is separate to any IOP acco ...

What Happens When an Entire Generation of Scientists Changes Its Mind Total reversals in scientific thinking are rare—but ...