The enchanting dunescape stretches over 43 miles (70 km) along the coast and over 30 miles (50 km) inland. Lençois translates as "bedsheets" in Portuguese and refers to the rolling white dunes that dominate the landscape. The national park is best visited in June, July and August, when the lagoons are at their best, according to Lonely Planet.

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could transform our understanding of plate tectonics.

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor geomagnetic activity on Jan. 31.

Artificial-intelligence tools are starting to allow nonexperts to search for patterns across the globe

YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a non-threat.

A newly discovered asteroid has a tiny chance of striking Earth in 2032. NASA and the European Space Agency said Wednesday the chance of impact is slightly more than 1%.

Astronomers have retracted the discovery of a new asteroid after realizing the object was the remains of Elon Musk's Tesla Roadster and its driver "Starman," which were launched into space in 2018.

A new study finds that the rate of ocean warming has more than quadrupled over the past 40 years — and pinpoints why.

The northern lights are forecast for Jan. 31 through Feb. 1, 2025. Here's when and how to spot the last-minute auroras.

The view of Earth from space is a sight that’s historically been reserved for a select few. So far, just a handful of specially trained astronauts and billionaires have been able to watch the Earth from outer space,

The possibility of the asteroid 2024 YR24 impacting our planet might not be ruled out until 2028, raising the prospect we’ll need to prepare for the worst