extraterrestrial life

Silicon ET closer?

Enzymes that catalyze carbon–silicon bond formation are unknown in nature, despite the natural abundance of both elements. Such enzymes would expand the catalytic repertoire of biology, enabling living systems to access chemical space previously only…


Small, but full of life?

UCLA-led team uses Keck Telescope to discover object in the constellation Boötes with carbon, nitrogen, oxygen and hydrogen Many scientists believe the Earth was dry when it first formed, and that the building blocks for…


Listen to Tabby’s Star

Tabby’s star has provoked so much excitement over the past year, with speculation that it hosts a highly advanced civilization capable of building orbiting megastructures to capture the star’s energy, that UC Berkeley’s Breakthrough Listen…


Magic extraterrestrial disappearance act?

It’s a cosmic game of hide-and-seek. A team of astronomers say that the next search for advanced extraterrestrial civilisations should look for stars – or even galaxies – that have vanished without a trace, as…


“Wow” explained?

Way back in 1977 something amazing happened (apart from the release of Star Wars obviously). Astronomer Jerry Ehman was using the Ohio State University’s Big Ear radio telescope to sweep the sky for possible signals…


Helpful exoplanetary neighbors

Life on other planets? A recent study by UNLV astrophysicist Jason Steffen is shedding new light on this persistently challenging question. In our galaxy, there may be billions of planetary systems where more than one…


Galactic Panspermia

Finding alien life, be it microbes or Vulcans, would revolutionize our understanding of our place in the universe, not only because we would no longer be alone in the galaxy, but also because it may…