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Clay, not water, likely source of Mars 'lakes'

A new study appears to show that for the first time another material - a form of clay called smectites - is being attributed to the bright radar reflections that many scientists have for years believed to be water.

Aug 4th, 2021

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On the hunt for 'hierarchical' black holes

Black holes, detected by their gravitational wave signal as they collide with other black holes, could be the product of much earlier parent collisions. Such an event has only been hinted at so far, but scientists believe we are getting close to tracking down the first of these so-called hierarchical black holes.

Jul 27th, 2021

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Physicists describe sun's electric field

Physicists report the first definitive measurements of the sun's electric field, and how the electric field interacts with the solar wind, the fast-flowing current of charged particles that can affect activities on Earth, from satellites to telecommunications.

Jul 14th, 2021

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