Something is lurking in the heart of Quasar 3C 279

One year ago, the Event Horizon Telescope (EHT) Collaboration published the first image of a black hole in the nearby radio galaxy M 87. Now the collaboration has extracted new information from the EHT data on the distant ...

What makes Saturn's atmosphere so hot

The upper layers in the atmospheres of gas giants—Saturn, Jupiter, Uranus and Neptune—are hot, just like Earth's. But unlike Earth, the Sun is too far from these outer planets to account for the high temperatures. Their ...

Sulfur 'spices' alien atmospheres

They say variety is the spice of life, and now new discoveries from Johns Hopkins researchers suggest that a certain elemental 'variety'—sulfur—is indeed a 'spice' that can perhaps point to signs of life.

Researchers provide new clue to solar coronal heating problem

Coronal heating is a topic dedicated to explaining how the corona may be heated up to a temperature of millions of degrees, far above that of the photosphere. To transport magnetic energy into the corona, Alfvén-wave turbulence ...

Image: Hubble captures a cannibal galaxy

This remarkable spiral galaxy, known as NGC 4651, may look serene and peaceful as it swirls in the vast, silent emptiness of space, but don't be fooled—it keeps a violent secret. It is believed that this galaxy consumed ...

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