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A recent study by a team of planet scientists has confirmed that Mars once had conditions conducive to the existence of H2O and a more dense atmosphere.
Using data from the Mars Reconnaissance Orbiter cameras, the scientists found paleodunes and riverbeds that indicate the influence of winds and water flows on the Martian landscape.
According to expert Matthew Hojnacki, many of the dunes found are identical to the current dunes, but appear more damaged.
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A recent study conducted by Stanford University and J. Hopkins University has shown that artificial human heart tissue underwent significant weakening during just one month on the ISS. Changes at the molecular and genetic level that mimic aging were identified.
Using induced pluripotent stem cells, the scientists created a “heart on a chip” and placed it in a chamber to monitor contractions. The tissue’s contraction weakened by almost half after a dozen days in space, while the ground samples remained stable.
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After 13 years of work and more than 500 TB of accumulated data, scientists have finally completed the most detailed infrared scheme of the Milky Way. This ambitious project, implemented by the European Southern Observatory, includes more than 1.5 billion objects and 200,000 photographs taken by VISTA.
The scheme allows you to see many unique objects, such as brown dwarfs, as well as other interesting astronomical phenomena. Since the work started 14 years ago, more than three hundred scientific papers have been published as part of this project.
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The study by Prof. Andy Tomkins (Monash University) argues that about 466 million years ago our planet was surrounded by a ring of stone debris, and this could be the explanation for the anomalously high frequency of space objects falling to Earth recorded in the geological record.
Unlike the famous Chicxulub impact that led to the extinction of the dinosaurs, there was a larger event at the beginning of the Ordovician that left many craters.
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After 1 billion years, most living things and humans may become extinct due to major changes on the Earth’s surface. This will be influenced by the Sun, American researchers have suggested.
Experts say that since the Sun was born, its activity has increased by a third. Specialists believe that this is due to its aging. Gradually expected to increase these indicators, which will result in the death of all life on Earth. Due to the increasing brightness of the Sun will decrease the level of CO2 in the atmosphere.
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