Author: Gabriela Radulescu, Guggenheim Postdoctoral Fellow, Smithsonian Institution As humans began to explore outer space in the latter half of the 20th century, radio waves proved a powerful tool. Scientists could send out radio waves to communicate with satellites, rockets and other spacecraft, and use radio telescopes to take in radio waves emitted by objects […]
Author: Juan F. Trillo, PhD in Linguistics and Philosophy (U. Autónoma de Madrid), PhD in Literary Studies (U. Complutense de Madrid). This essay is an excerpt from the paper that will be presented at the IX Jornadas de Divulgación Científica at the city of Medellín, Badajoz (Spain), March 2-5, 2023. The possibility of establishing contact […]
For decades, scientists have searched the skies for signs of extraterrestrial technology, contacts. A study from EPFL asks a sharp question: if signals from technological aliens have already reached Earth without us noticing, what should we realistically expect to detect today? Since the first SETI experiment in 1960, astronomers have scanned the Milky Way for […]
In September 2023, NASA’s OSIRIS-REx spacecraft brought home a remarkable gift: the first pristine sample ever collected from a carbon-rich asteroid called Bennu. After two years of careful study in laboratories worldwide, scientists have confirmed that Bennu’s dust and pebbles contain many of the very same small molecules life on Earth relies on as its […]
The Earth supports the only known life in the universe, all of it depending heavily on the presence of liquid water to facilitate chemical reactions. While single-celled life has existed almost as long as Earth itself, it took roughly three billion years for multicellular life to form. Human life has existed for less than one-10 […]
Author: María Rosa Pino Otín, Professor of Microbiology, Universidad San Jorge We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours is the only planet capable of supporting life, and it seems to have arisen in the form of something […]
The origins of life on Earth remain one of the most fascinating and profound questions in science. A new research sheds light on this mystery by exploring how the building blocks of life could have formed under early Earth conditions. In this study, we focused on understanding how simple chemicals might have come together to […]
Just over five years ago, on 22 February 2019, an unmanned space probe was placed in orbit around the Moon. Named Beresheet and built by SpaceIL and Israel Aerospace Industries, it was intended to be the first private spacecraft to perform a soft landing. Among the probe’s payload were tardigrades, renowned for their ability to […]
Jupiter feasted on baby planets to fuel growth Researchers constructed a model based on gravitational data from NASA’s Juno space probe and other sources to examine the core of Jupiter, finding its center is filled with planetesimals, baby planets that the massive giant used to fuel its own growth. Full story: Live Science Lack of […]
Blasting out Earth’s location with the hope of reaching aliens is a controversial idea – two teams of scientists are doing it anyway If a person is lost in the wilderness, they have two options. They can search for civilization, or they could make themselves easy to spot by building a fire or writing HELP […]