Scientists say in a new report that 1715 star systems have been in a position to view Earth over the past 5000 years.
According to the report published Wednesday in the journal Nature, the study could provide clues on where to look for extraterrestrial life that could have a view of Earth.
The authors wrote that while there has been much research on the position of stars, previous studies did not take into account how the view from star systems has changed over time.
Imagine clothing that can warm or cool you, depending on how you’re feeling. Or artificial skin that responds to touch, temperature, and wicks away moisture automatically. Or cyborg hands controlled with DNA motors that can adjust based on signals from the outside world.
Welcome to the era of intelligent matter—an unconventional AI computing idea directly woven into the fabric of synthetic matter. Powered by brain-based computing, these materials can weave the skins of soft robots or form microswarms of drug-delivering nanobots, all while reserving power as they learn and adapt.
Sound like sci-fi? It gets weirder. The crux that’ll guide us towards intelligent matter, said Dr. W.H.P. Pernice at the University of Munster and colleagues, is a distributed “brain” across the material’s “body”— far more alien than the structure of our own minds.
Just supposing there is a God(s) ; are He/ She /It interplanetary or are we likely to experience a similar ruinous manifistation of the discord seen here on Earth as the varoius factions of ‘the Godly’. come together? If so, it may be time to start smelting down the plough-shares again.
A Rabbi, an Imam, and a Christian theologian on what life in space could mean for the spiritual.
How do stellar outbursts affect the planets that orbit them?
Scientists surveyed thousands of stars to understand the impact they have on their orbiting planets’ habitability.
A free-floating planet (FFP) is a planetary-mass object that orbits around a non-stellar massive object (e.g. a brown dwarf) or around the Galactic Centre. The presence of exomoons orbiting FFPs has been theoretically predicted by several models. Under specific conditions, these moons are able to retain an atmosphere capable of ensuring the long-term thermal stability of liquid water on their surface. We model this environment with a one-dimensional radiative-convective code coupled to a gas-phase chemical network including cosmic rays and ion-neutral reactions. We find that, under specific conditions and assuming stable orbital parameters over time, liquid water can be formed on the surface of the exomoon. The final amount of water for an Earth-mass exomoon is smaller than the amount of water in Earth oceans, but enough to host the potential development of primordial life.
Life on Mars may be freeze-dried.
But there’s a solution: freeze-dry it.
In a first-of-its-kind experiment, a team of Japanese researchers freeze-dried samples of mice sperm and sent them aboard the ISS to see how well this crucial element of human life (and, well, a lot of life on Earth) will fair against the harsh radiation of space.
Even after six long years aboard the ISS, the team found that the mice’s space sperm sired equally healthy pups as its terrestrial control. An additional X-ray experiment predicts that this positive outcome could persist with up to 200 years of space radiation exposure.