Giant elliptical galaxies are not as likely as disk-shaped galaxies, such as our own Milky Way, to be cradles of technological civilizations, according to a recent U.S. paper.
It's calculated that, thanks to rapid inflation, the universe may contain more than 1 googol (10^100) stars, and if this is the case then more complex, life-sustaining RNA structures are more than just probable, they're practically inevitable.
The discovery of Metallosphaera sedula - the bacteria that eats meteorites not only invites speculation on how terrestrial life could survive off world, it offers insight into how early biology could have received key nutrients through space rocks.
A team of German scientists recently examined data gathered by the Cassini orbiter around Enceladus’ southern polar region and found was evidence of organic signatures that could be the building blocks for amino acids.
Accounting for the buildup of toxic gases predicted to occur in the atmospheres of most planets narrows the habitable zone for complex life by half and, in some cases, rules it out altogether, the study concludes.
A team of scientists has re-created some of the first steps of life in the lab, testing whether life could emerge on other ocean worlds.
Research funded by NASA has led to the creation of an entirely new flavor of the DNA double helix, one that has an additional four nucleotide bases. It's being called hachimoji DNA.
Trillion Planet Survey is an ambitious experiment, run almost entirely by US students. It uses a suite of telescopes aimed at Andromeda and other galaxies including our own in search for extraterrestrial life.
Technosignatures are signs or signals, which if observed, would allow us to infer the existence of technological life elsewhere in the universe.
Nexus for Exoplanet Systems Science, or NExSS project's mission is to be able detect extraterrestrial “biosignatures” using current and future technologies.
Set to lift off early next week, the Tess spacecraft will prowl for planets around the closest, brightest stars. These newfound worlds will become prime targets for future telescopes looking to tease out any signs of life.
In the Search for Extra-Terrestrial Intelligence (SETI), a team of astronomers recently searched through the Kepler field to look for signatures of technologically-advanced civilizations.
According to a recent study, space dust could be what brought life molecules to Earth. This same mechanism could be responsible for the distribution of life throughout the Universe.