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SCIScienceDaily

Ancient meteorites reveal a powerful force that helped build the Solar System

About 4.6 billion years ago, the solar system began as an enormous cloud of gas and dust. Over the next several million years, this "solar nebula" changed dramatically. The cloud collapsed and flattened into a disk, eventually giving rise to the sun at its center and the planets that formed around it.

Gravity has long been considered the main force behind this transformation. New research from MIT, however, suggests that magnetism may also have been an important part of the process.

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SCIScienceDaily

“We found something never seen before” – A dead star is producing a shock wave that shouldn’t exist

Stars can produce powerful shock waves when gas and dust streaming away from them collide with material in the surrounding space. Astronomers have now captured a striking example around the dead star RXJ0528+2838 using the European Southern Observatory's Very Large Telescope (ESO's VLT). The discovery is puzzling because, based on known mechanisms, this small stellar remnant should not be capable of producing the structure seen around it. The unexpected finding challenges current ideas about how dead stars exchange matter and energy with their surroundings.