An international team of scientists has discovered the first nitrogen-fixing organelle inside a eukaryotic cell that can replace fertilizers. The discovery described in the article published in the journal Science, refutes the established idea that only bacteria are capable of taking nitrogen from the atmosphere and converting it into a form suitable for life. The … Read more
The changes will affect approximately 450 kilometers of state roads and 12 bridges. The largest construction projects this season are the section of the Vidzeme Highway (A2) from Melturi to Berzkrogs, where the reconstruction started last year will be completed, as well as the continuation of work on the Riga Bypass Road (A5) in Babite. … Read more
The scientists used a mathematical tool called out-of-time-order correlators, or OTOCs, which are considered a measure of quantum chaos. OTOCs were invented 55 years ago to calculate how electrons in superconductors are affected by disturbances caused by impurities. This influence is similar to the “butterfly flapping effect” that mathematician Edward Lorenz used to illustrate chaos … Read more
An international team of astronomers has for the first time discovered a super-Earth that is tidally locked, meaning one of its hemispheres is forever facing its parent star. The discovery is reported in the article, published in The Astrophysical Journal. The researchers observed exoplanet LHS 3844b and analyzed data from the Spitzer Space Telescope to … Read more
It is assumed that there are two possible ways for rogue planets to form. In the first scenario, an object is formed from a protoplanetary disk and then ejected from its home system due to interaction with a binary star, neighboring planets, or when another star passes by the system. In the second scenario, they … Read more
At number 1496 on the Forbes list is the only Estonian billionaire – Kristo Käärmann. He is a co-owner of the British international transfer service Wise and was included in the Forbes list back in 2021 – after his company entered the London Stock Exchange. 43-year-old Käärmann, according to the ranking compilers, has a fortune … Read more
Molecular biologists have identified a complex of proteins in cells that help control the pause or complete stop of DNA replication, ensuring the process runs smoothly. The process of DNA replication involves many protein complexes with highly specialized functions, including participation in the unwinding of the DNA double helix and the copying of both strands … Read more
According to the RNA world hypothesis, the first replicators (structures capable of reproduction) on Earth were RNA molecules capable of catalyzing their own reproduction without the help of protein enzymes. However, it was not clear how such a molecule could arise from precursors incapable of catalytic activity. It turns out that a ribozyme that can … Read more