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Hertzsprung-Russell diagrams and color-magnitude diagrams as a way of classifying stars into families.
earlier, the Dane Ejnar Hertzsprung (1873 to 1967) had been wondering much the same
A brain circuit inhibits food intake during nausea
Or have you ever felt sick and really wanted to eat at the same time?
Blue-throated macaws have an enormous ability to imitate
leg” on observing the demonstrator in the background lifting its leg (showing the same
How is it possible that HD 62623, a hot super-giant star on the verge of death, is surrounded by a disc, generally only associated with infant stars? Using long-baseline stellar interferometry at ESO’s VLT interferometer, a team led by Florentin Millour from Observatoire de la Côte d’Azur and Anthony Meilland from Max Planck Institute for Radio Astronomy could generate for the first time a three-dimensional high angular and high spectral resolution image of this star and its closest environment. They conclude that a solar-mass companion star is the key to this mystery. To attain their goal, the researchers adapted an imaging technique from radio astronomy which uses interferometric datasets.
twin, the bright star Deneb in the summer triangle, and almost all stars with the same
A single sand grain harbours up to 100,000 microorganisms from thousands of species.
What you probably can’t imagine: at the same time, billions upon billions of
A single sand grain harbours up to 100,000 microorganisms from thousands of species.
What you probably can’t imagine: at the same time, billions upon billions of
Arriving early in the breeding area is crucial for successful reproduction also in non-migratory birds
spanning roughly eight months –, the researchers were surprised to find that the same
Nine out of the ten fat birds flew on the same night; the thin birds, however, remained
Geochemical analyses of stone artefacts reveal long-distance voyaging among Pacific Islands during the last millennium
eight adzes or adze fragments the researchers analysed, six were sourced to the same
In our globalized world, cooperation between citizens of different countries should actually be a matter of course. But around the world, people prefer to cooperate with their own fellow citizens rather than with foreigners. This was the result of a study by an international team of researchers.
there was also a visible link between the willingness to cooperate and having the same
