When a star is born, it doesn’t emerge in isolation. Instead, it forms inside a large, chaotic cloud of gas and dust. Around it, a flat disk of spinning material takes shape. This protoplanetary ...

Field symmetries and conservation laws are closely associated through Noether's theorem. Light field inhomogeneities lead to changes in linear and angular momenta and, consequently, to radiation ...

Conservation of angular momentum explains why an ice skater spins more rapidly as she pulls her arms in. As her arms come closer to her axis of rotation, her speed increases and her angular ...

The smaller, planet-forming disk extends about 90 AU from the star. The whole system is about 450 light-years away from Earth, in the constellation Taurus, one of the closest newborn star systems.

A research team succeeds in solving a decade-old physical puzzle: the question of the fate of angular momentum during the ultrafast demagnetization of nickel crystals by laser light.

All the latest science news on angular momentum from Phys.org. Find ... Researchers confirm fundamental conservation laws at the ... Disk discovery changes views on star and planet formation.

A study examines angular momentum constraints on the formation and orbital evolution of the Moon. Proposed scenarios for the Moon's formation typically involve a giant impact that would have left ...

If the spinning were to stop, the angular momentum of every object on Earth would rip the surface apart, resulting in a really, really bad day. "This is just a thought experiment," said James ...

Earth spins round the sun, the sun round the galaxy and galaxies spin on their axes. Where does all this spin come from? The big bang? Mike Follows, Sutton Coldfield, West Midlands, UK. The ...

There’s something new to look for in the heavens, and it’s called a “synestia,” according to planetary scientists Simon Lock at Harvard University and Sarah Stewart at the University of California, ...