Summary of the ultrabrèves of July 18, 2022: the peak of the heat wave soon to be reached in France, insects also feel pain and a dormant black hole discovered in the Large Magellanic Cloud
The scientific news of July 18, 2022 is:
In weather: .
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15 departments are on heatwave red alert and the peak of this heat wave is expected on the west side, especially in Brittany.
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This day could be one of the hottest ever recorded in France.
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The intense heat is fueling the fires, which have multiplied in recent days on the territory.
In arthropods: .
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Insects are able to feel pain with the necessary physiological system connected to their brain.
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The researchers noticed that they produce a protein during traumatic events that could have the same effect as our opiate receptors, whose mission is to modulate our response to pain.
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Although the perception of pain can change considerably from one species to another, this discovery raises several ethical issues.
A universe:.
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The first “dormant” stellar-mass black hole has just been detected in the Large Magellanic Cloud.
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Weighing 9 solar masses, it orbits a hot blue star 25 times the mass of the Sun.
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To find it, the team studied for several years the Tarantula Nebula, a vast region of star formation in the Large Magellanic Cloud.
In large mammals: .
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Elephant calves come to terms with the loss of their mothers through herd life, according to a study of free-living groups in Kenya.
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The researchers measured the level of glucocorticoid hormones, released in the face of a stress factor, in 37 baby elephants, 25 of which had lost their mothers.
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They found lower stress in youngsters growing up in groups with more peers of a similar age.
In space:
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The United States and Russia announced on July 15 to resume joint flights to the International Space Station despite tensions related to the war in Ukraine.
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Two American astronauts will fly aboard rockets […]
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