Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.

Each of these books can, in its own way, teach readers how to think about Earth's history, and how to apply lessons from the past to our future.

Suspected gunman uttered 4 words before shooting Indiana judge and wife: dispatch audio Opinion: Attorney General Bondi wants a letter of support from me. No way At 80, Dolly Parton remains our most ...

Abstract: A safe time-varying formation (TVF) control framework is proposed in this article for heterogeneous multiagent systems under the constraints of denial of service (DoS) attacks, ...

With an entirely-new Audi RS 6 in the works, which will also comprise a four-door sedan besides the usual five-door station wagon (Avant) for the first time in many years, the days of the current ...

Abstract: Current formations commonly rely on invariant hierarchical structures, such as predetermined leaders or enumerated formation shapes. These structures could be unidirectional and sluggish, ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...