In 1869, Dmitri Mendeleev (1834–1907) suggested listing the chemical elements in a table with seven columns in ascending order according to the weight of their…
New study fuels discussion about the habitability of the Venus clouds – Sidereal Messenger
A new study suggests that, despite having sufficient temperature and pressure for life, Venus’ clouds are unlikely to harbor microorganisms. The reason? Lack of water.…
The bingo radio telescope under construction in Paraíba will seek a signal of the first sounds of the universe – Sidereal Messenger
We know that musical success is a matter of time. A large radio telescope under construction inside Paraíba should now specifically investigate what fashion sounded…
Technical and ethical barriers prevent human clones from being created 25 years after Dolly Schaf
The 25 years that have passed since the birth of Dolly the sheep, the first viable clone of a mammal, is an exemplary lesson in…
Marijuana compounds have a paradoxical effect on psychoses – 07/03/2021 – Marcelo Leite
Marijuana (Cannabis sativa) is a fascinating plant, especially for those who focus on its psychological and medicinal effects without prejudice. For example, a molecular study…
How many galaxies are there in the universe? – basic science
By Thiago Signorini Gonçalves The challenge of a cosmic count * The following article answers the question from Penélope Alves, 6 years old, from Bahia,…
We can learn a lot about tolerance from other primates, says Essayist
The encounter between the elderly chimpanzee, days before her death, and her lifelong friend, also an elderly scientist, is an unforgettable scene: the radiant joy…
Scientist Revealing DNA From Biblical Manuscripts Examines Genetic Heritage Acquired Throughout Life – 07/02/2021 – Science –
It all started with an unpretentious conversation in the back of the bus on the way to a meeting for young researchers at Tel Aviv…
Scientists identify possible “patient zero” of bubonic plague who died 5000 years ago
Scientists have identified a man who could be “patient zero” of the plague that caused the bubonic plague in the Middle Ages. A man who…
The mystery of positions in the periodic table was not clarified until the 20th century – 06/29/2021 – Marcelo Viana
All substances in nature consist of around a hundred basic components, the chemical elements. For example, water molecules are made up of two atoms of…
