Canadian smoke crosses the Atlantic and reaches Europe

Canadian smoke from raging wildfires has now crossed the Atlantic to darken skies over Europe. The smoke over Europe is high in the atmosphere.

Is Europa’s habitability limited by slow evolution?

Researchers at ASU say that Europa may have formed slower than thought, with less interior heat. That could affect the habitability of Europa's ocean.

Geminid meteor mystery solved? It was a collision!

Data from the Parker Solar Probe helped scientists discover that the Geminid meteor shower is most likely the result of a violent event on asteroid Phaethon.

Hummingbirds, tiny and colorful: Lifeform of the week

Hummingbirds are tiny, fast and colorful. See some gorgeous photos of these birds and learn more about this fantastic lifeform of the week here.

Listen to space with these new sonification videos

Listen to space with 3 new sonification videos of NASA highlighting the star system R Aquarii, the galaxy cluster Stephan's Quintet and galaxy M104.

Mars in ultraviolet: New hues for the red planet

The MAVEN spacecraft acquired 2 new images of Mars in ultraviolet. These new views help us get a different perspective on the planet next door.

Sea-going search for alien fragments yields odd spherules

Avi Loeb and a team of scientists are combing the ocean floor near Papua New Guinea for alien fragments. They've found some odd tiny metallic spherules.

Hurricanes heat the ocean, even far from the storm

Hurricanes heat the ocean and redistribute that heat to other regions. However, they may also help sequester heat by locking it deep in the ocean.

Atlantic tropical storms Bret and Cindy

Atlantic tropical storms Bret and Cindy formed in the Atlantic ocean this week. This activity starting near Africa is more common of late summer.

Single supernova looks like 4. Why?

Astronomers have released a bizarre new image of a supernova. Gravitational lensing from a galaxy in the foreground causes the single supernova to look like 4.