Lifeboat Foundation

Engineers took to a competition pool to test robotic prototypes for an ambitious mission concept—a swarm of underwater explorers seeking signs of life on alien ocean worlds.

NASAs upcoming missions to Europa will deploy advanced robots to probe its icy oceans for life. The robots, part of the SWIM project, have been rigorously tested on Earth and through simulations to handle extraterrestrial conditions.

Continue reading “Could NASA’s Tiny Robots Discover Life on Europa?” »

A study that sheds new light on how pulsar signals—the spinning remnants of massive stars—distort as they travel through space, published in The Astrophysical Journal, was led by Dr. Sofia Sheikh, SETI Institute researcher, and performed by a multi-year cohort of undergraduate researchers in the Penn State branch of the Pulsar Search Collaboratory student club.

Maura McLaughlin, Chair, Eberly Distinguished Professor of Physics and Astronomy, West Virginia University, created the Pulsar Search Collaboratory to engage high schoolers and undergraduates in pulsar science, and she helped facilitate access to the data used in this study.

Using archival data from the Arecibo Observatory, the student team found patterns that show how pulsar signals change as they move through the interstellar medium (ISM), the gas and dust that fills the space between stars. The team measured scintillation bandwidths for 23 pulsars, including new data for six pulsars not previously studied.

We may not be the only beings in the universe who use artificial intelligence. That’s according to some astronomers who say that an intelligent civilization anywhere in the cosmos would develop this tool naturally over the course of their cultural evolution.

After 13.8 billion years of existence, life has likely sprung up countless times throughout the cosmos. According to the Drake Equation, which calculates the probability of an existing, communicating civilization, there are currently an estimated 12,500 such intelligent alien societies in the Milky Way Galaxy alone. And if there are aliens who think in a way that we do, and created cultures that developed technology like us, then they probably invented a form of artificial intelligence, too, scientists say.

Assuming AI has been an integral part of intelligent societies for thousands or even millions of years, experts are increasingly considering the possibility that artificial intelligence may have grown to proportions we can scarcely imagine on Earth. Life in the universe may not only be biological, they say. AI machine-based life may dominate many extraterrestrial civilizations, according to a burgeoning theory among astrobiologists.

Designed to one day search for evidence of life in the briny ocean beneath the icy shell of Jupiter’s moon Europa, these robots could play a key role in detecting chemical and temperature signals that might indicate alien life, according to scientists at NASA’s Jet Propulsion Laboratory (JPL), who designed and tested the robots.

“People might ask, why is NASA developing an underwater robot for space exploration?” said Ethan Schaler, the project’s principal investigator at JPL. “It’s because there are places we want to go in the solar system to look for life, and we think life needs water.”

The findings call into question just how finely tuned our universe really is.

A team of astrophysicists, led by our Institute for Computational Cosmology, have developed a new model that could estimate how likely it is for intelligent life to emerge in our Universe and beyond.

In the 1960s, American astronomer Dr Frank Drake came up with an equation to calculate the number of detectable extraterrestrial civilisations in our Milky Way galaxy.

More than 60 years on, researchers at Durham, the University of Edinburgh and the Université de Genève, have produced a new model based on the conditions created by the acceleration of the Universe’s expansion and the amount of stars formed instead.

We humans may have beaten the odds.

A new model based on the famous alien-hunting Drake equation suggests that some parallel universes within the hypothetical “multiverse” could have higher chances of containing extraterrestrial life than our universe.

The approach presented in the paper involves calculating the fraction of ordinary matter converted into stars over the entire history of the universe, for different dark energy densities.

The model predicts this fraction would be approximately 27% in a universe that is most efficient at forming stars, compared to 23% in our own universe.

This means we don’t live in the hypothetical universe with the highest odds of forming intelligent life forms. Or in other words, the value of dark energy density we observe in our universe is not the one that would maximize the chances of life, according to the model.