Related topics: black holes

Solar cycle 25: The sun wakes up

The sun has entered its 25th solar cycle and is about to wake up. For the last few years our star has been pretty sleepy, with few sunspots, bright flares or massive ejections of magnetized plasma emanating from its surface. ...

Solar hydrogen: Let's consider the stability of photoelectrodes

Hydrogen is a versatile fuel that can store and release chemical energy when needed. Hydrogen can be produced in a climate-neutral way by the electrolytic splitting of water into hydrogen and oxygen using solar energy. This ...

3 scientists win Nobel physics prize for black hole research

Three scientists won the Nobel Prize in physics Tuesday for establishing the all-too-weird reality of black holes—the straight-out-of-science-fiction cosmic monsters that suck up light and time and will eventually swallow ...

How planetary nebulae get their shapes

About 7.5 billion years from now, our sun will have converted most of its hydrogen fuel into helium through fusion, and then burned most of that helium into carbon and oxygen. It will have swollen to a size large enough to ...

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