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Do underground oceans vent through canyons on Saturn's moon Enceladus?

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There is a

A new study provides insights on the geophysics behind asteroid formation and evolution.

In silhouette against a crowded star field

Researchers studying meteor showers have found that not all comets crumble the same way when they approach the Sun. In a new study, they ascribe the differences to the conditions in the protoplanetary disk where comets formed 4.5 billion years ago.

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Who are we? Why are we here? We are stardust, the result of chemistry occurring throughout vast clouds of interstellar gas and dust. To better understand how that chemistry could create prebiotic molecules, researchers investigated the role of low-energy electrons created as cosmic radiation traverses through ice particles. Their findings may also inform medical and environmental applications on our home planet.

A supermoon occurred yesterday.

High-resolution images show large spots on the surface of Polaris.

Researchers have succeeded in something that has been pursued since the 1970s: explaining the X-ray radiation from the black hole surroundings. The radiation originates from the combined effect of the chaotic movements of magnetic fields and turbulent plasma gas.

Inside the Cocoon Nebula is a newly developing cluster of stars.

One of the most spectacular solar sights is an erupting prominence.

On August 11 a

A single exposure made with a camera pointed almost due north

The dramatic dimming of a light source ~ 870 million light years away from Earth confirms the accuracy of a detailed model.

Late Night Vallentuna

This was an unusual night.

With 2D cameras and space robotics algorithms, astronautics engineers have created a navigation system able to manage multiple satellites using visual data only. They just tested it in space for the first time.

A new study has found galaxies with more neighbors tend to be larger than their counterparts that have a similar shape and mass, but reside in less dense environments. The team, which used a machine-learning algorithm to analyze millions of galaxies, reports that galaxies found in denser regions of the universe are as much as 25% larger than isolated galaxies. The findings resolve a long-standing debate among astrophysicists over the relationship between a galaxy's size and its environment, but also raise new questions about how galaxies form and evolve over billions of years.