The year 2020 ended with a potential detection by the Breakthrough Listen project of an artificial signal coming from Proxima Centauri. But there was no indication of structure or modulation in the signal, no evidence that it carried any information.

Fernando Ballesteros discusses the discovery of phosphine on Venus and other historical hypotheses regarding signs of life on other planets.

Can an extraterrestrial organism produce a catastrophic pandemic on our planet? Such a question arises every time we consider bringing samples from other worlds in the Solar System, especially now, amidst the COVID-19 pandemic.

We seem to be living a sweet moment for manned exploration missions to Mars. There are several projects underway, both by private companies and space agencies, which aim to be the first to put a human being on Mars. Does this mean that we are now going to make the ancient dream of stepping on Mars come true?

To avoid potential psychotic episodes, the International Space Station astronauts talk weekly to their friends and family.

Kessler Syndrome refers to an avalanche-like phenomenon in which, from a critical density of objects, a collision with space junk produces more junk, which in turn causes more collisions.

Is the presence of oxygen really indispensable for the emergence of complex multicellular life?

One of the current hotspots in astrobiology is the search for water in exoplanets. We all seem to share the idea that water is essential for the existence of life, and even the assumption that water and life are almost synonymous.

The Solar System has its own road network, the Interplanetary Transport Network (ITN), a ser of trajectories related to the Lagrange points.