Phase transitions in the early universe and their signals

Phase transitions, such as the boiling of water or the melting of a metal, are commonplace but fascinating phenomena that spur surprises decades after decades. They often occur as the temperature of a substance is changed, ...

Hubble probes extreme weather on ultra-hot Jupiters

In studying a unique class of ultra-hot exoplanets, NASA Hubble Space Telescope astronomers may be in the mood for dancing to the Calypso party song "Hot, Hot, Hot." That's because these bloated Jupiter-sized worlds are so ...

Sahara desert dust coats swathes of Spain

A mass of hot air from the Sahara desert dumped dust on large parts of Spain including Madrid on Tuesday, colouring the sky orange and coating cars and streets.

Hot springs reveal where continental plates collide beneath Tibet

In the classic example of mountain-building, the Indian and Asian continental plates crashed—and continue colliding today—to form the world's largest and highest geologic structures: the Himalayan Mountains and the Tibetan ...

page 19 from 40