When Victor Ambros[1] and Gary Ruvkun[2] discovered a new molecule they called microRNA in the 1980s, it was a fascinating diversion from what for decades had been called the central dogma of molecular biology[3].
Recognized with the 2024 Nobel Prize in physiology or medicine[4], Ambros and Ruvkun had identified a new kind of genetic...
NASA plans to send humans on a scientific round trip to Mars potentially as early as 2035. The trip will take about six to seven months each way and will cover up to 250 million miles (402 million kilometers) each way[1]. The astronauts may spend as many as 500 days on the planet’s surface before returning to Earth.
NASA’s Artemis...
Read more https://theconversation.com/when-and-why-do-girls-start-forming-cliques-236455
NASA plans to send crewed missions to Mars[1] over the next decade – but the 140 million-mile (225 million-kilometer) journey[2] to the red planet could take several months to years round trip[3].
This relatively long transit time is a result of the use of traditional chemical rocket fuel. An alternative technology to the chemically...