Opinion

Opinion With its frigid temperatures, remoteness from the sun and general dustiness, changing Mars to be more Earth-like is more challenging than it seems (and it already seems pretty tough).

Opinion Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more complicated than general relativity suggests.

Opinion Albert Einstein described Emmy Noether as a "creative mathematical genius" who, despite "unselfish, significant work over a period of many years," did not get the recognition she deserved.

Opinion How much energy can be created at one time without losing control?

Opinion Believe it or not, physicists are attempting to understand the universe when it was only a handful of seconds old.

Opinion As of late summer, governments around the world had pledged US$12.2 trillion of relief in response to the coronavirus pandemic.

Opinion The war against plastic may be overshadowing greater threats to the environment.

Opinion The recent global spread of a deadly coronavirus originating in Wuhan, China, has led world leaders to invoke an ancient tradition to control the spread of illness: quarantine.

Opinion Two centuries after it was first sighted by Russian explorers, Antarctica is a key site for studying the future of Earth's climate – and for global scientific cooperation.

Opinion We're in the middle of a teen mental health crisis – and girls are at its epicenter.