The science news of April 28, 2021 is:
In space: record solar flare on Proxima du Centaure.
- The star closest to our solar system experienced in 2019 a solar flare 100 times stronger than that of our Sun.
- Five telescopes recorded the phenomenon in a wide range of wavelengths.
- This observation raises the question of the possibility of life on the planet Proxima Centauri b, which is in the star’s theoretical habitability zone …
In animals: researchers announce good news for the survival of Sumatran rhinos.
- By analyzing the DNA of Sumatran rhinos, an international team of researchers has made a rather reassuring discovery for the survival of the species.
- The last populations of Sumatran rhinoceros (Dicerorhinus sumatrensis) suffer only from a low level of inbreeding.
- Good news knowing that the species is critically endangered, it is one of the most endangered mammal species in the world.
In health: IN CURVES. Covid-19: vaccination rates by region as of April 28, 2021.
- The vaccination campaign against Covid-19 in France began on December 26, 2020.
- In order to closely follow the vaccination campaign against Covid-19 in France, Science and the Future takes stock, every week, of the vaccination rate in all regions of the country.
- As of Monday April 26: the vaccination campaign is accelerating for the second dose and some regions already exceed 10% of their fully vaccinated population, in particular Corsica (14%), PACA and Bourgogne-Franche-Comté.
In kind: the evolution of the human footprint on biodiversity in maps.
- A couple of American scientists have developed a map to observe the evolution of the human footprint on landscapes.
- It is a cartographic process allowing each country to follow its progress in terms of ecosystem preservation and biodiversity conservation.
- This tool can be updated regularly, using only satellite images and based on machine learning.
Healthy: beware of the promises of fruit juice or iced tea, according to a consumer association.
- The association for the defense of consumers CLCV invites you to be wary of the promises of fruit juices, smoothies or iced teas.
- Better framing of nutritional claims and other positive mentions on these liquids are sometimes false friends.
- Many of these drinks have a poor nutritional profile, especially because they are very sweet.