Searching for the solar system's chemical recipe

(Phys.org)—By studying the origins of different isotope ratios among the elements that make up today's smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, Mark Thiemens and his colleagues ...

CSIRO telescope takes temperature of Universe

(Phys.org)—Using the CSIRO Australia Telescope Compact Array near Narrabri, NSW, an international team from Sweden, France, Germany and Australia has measured how warm the Universe was when it was half its current age.

Cassini suggests icing on a Titan lake

(Phys.org)—It's not exactly icing on a cake, but it could be icing on a lake. A new paper by scientists on NASA's Cassini mission finds that blocks of hydrocarbon ice might decorate the surface of existing lakes and seas ...

Shocking news about dust grains

(Phys.org)—The ubiquitous clouds of gas and dust found between stars provide the natal material for new stars and planets. These clouds are also dynamic factories that produce many complex molecules thanks to their rich ...

Using calorimetry to estimate absorbed dose from CT scans

In the United States, about 80 million x-ray computed tomography (CT) scans are made every year – 7 million of them on children – according to the American Association of Physicists in Medicine (AAPM). Not surprisingly, ...

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