The "Science and Space" Thread #2

ekim68

Mike
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Jul 8, 2003
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56,125

ESA’S Solar Orbiter set for unexpected rendezvous with Comet ATLAS


The European Space Agency’s Solar Orbiter is set to have a chance encounter with the two tails of the disintegrating Comet ATLAS over the coming days. The spacecraft is currently en route to the inner solar system for a close pass with the Sun, and has had four key scientific instruments rushed through commissioning in order to be ready for the unexpected rendezvous.

 

ekim68

Mike
Joined
Jul 8, 2003
Messages
56,125

Mysterious radio bursts reveal missing matter in cosmos


Roughly half of the “normal” matter in the universe—the stuff that makes up stars, planets, and even us—exists as mere wisps of material floating in intergalactic space, according to cosmologists. But astronomers had no good way to confirm that, until now. A new study has used fast radio bursts (FRBs)—powerful millisecondslong pulses of radio waves coming from distant galaxies—to weigh intergalactic matter, and the results match up with predictions.
 

ekim68

Mike
Joined
Jul 8, 2003
Messages
56,125

ekim68

Mike
Joined
Jul 8, 2003
Messages
56,125

Neutron stars show their cores


Dive into the interior of neutron stars and you’ll find, guess what, neutrons. But it’s not as simple as that. The deeper the dive, the fuzzier and denser the interior gets. There’s no shortage of theories as to what might make up the centre of these cosmic objects. One hypothesis is that it’s filled with free quarks, not confined inside neutrons. Another is that it’s made of hyperons, particles that contain at least one quark of the “strange” type. Another still is that it consists of an exotic state of matter called a kaon condensate.
 

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