Astronomers are closing in on a result so statistically secure that, in their language, it borders on certainty: a 99.9999999 ...

A sale of insider shares at $421 a share would make Mr. Musk’s rocket company the most valuable private company in the world, ...

Until recently, Type Ia supernovae have been treated by cosmologists as the gold standard of cosmic distance determination: quite uniform “standard candles” whose peak brightness was reliable over all ...

Ashton Bell isn’t taking this experience for granted. The Manitoba-born blue liner — a product of Deloraine, about an hour ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...