System Workings News Today

Evidence of glaciers on Mercury opens a new frontier in astrobiology—the study of life in the universe—by revealing an Earth-like extreme environment.

Every once in awhile I read a news release and do a facepalm. I note that "simulations" are not "evidence" and chaos (and uncertainty) works backward in time too. - Anthony From EurekAlert - Venus had Earth-like plate tectonics billions of years ago, study suggests Simulations produced by a Brown-led research team offer evidence that

Providence RI (SPX) Oct 30, 2023 - Venus, a scorching wasteland of a planet according to scientists, may have once had tectonic plate movements similar to those believed to have occurred on early Earth, a new study found. The finding

Venus may have had plate tectonics billions of years ago, a finding that opens the door for the possibility of early life on the planet.

<p>Venus, may have once had tectonic plate movements similar to those believed to have occurred on early Earth, a new study found. The finding sets up tantalizing scenarios regarding the possibility of early life on Venus, its evolutionary past and the history of the solar system.</p>

Saturn’s moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these

A new hypothesis reveals that a global sedimentary cycle driven by seasons could explain the formation of landscapes on Saturn’s moon Titan.

 E-Mail PROVIDENCE, R.I. [Brown University] -- Volcanic rock samples collected during NASAs Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the Moons iron core, as well as the crystallization of the lunar magma ocean -- the sea of molten rock thought to have covered the Moon for around 100 million years after it formed. The analysis, published in the journal Science Advances, used a tech...

A new analysis of samples brought back from the Moon to helps clear up questions about the isotopic composition of Moon's interior. ...

32S) V-CDT − 1] × 1000, where V-CDT is the Vienna-Canyon Diablo Troilite standard) in lunar samples returned by the Apollo missions ( 21). These studies found that lunar mare basalts, representing a range in major element compositions, have a remarkable uniform whole-rock acid-volatile (extraction with 3 M HCl) sulfur isotope ratios with a mass-dependent mean isotopic composition of δ 34S = +0.58 ± 0.05‰ ( 2). This mean value is within the range measured for carbonaceous chondrites but i...