But being in this sweet spot doesn't automatically mean a planet is hospitable to life.
An expert dives into the history of radio astronomy and the search for life beyond our Earth.
The giants might've been kicked out, left to live a rogue lifestyle.
New lab experiments suggest that water may not be a rare visitor delivered by chance but rather a fundamental ingredient woven into the process of planetary birth.
Excess heat detected at Saturn moon Enceladus' north pole helps to account for a finely balanced energy budget that keeps the moon's ocean liquefied. What could this mean in the search for life?
New observations of a volatile young star have shown how infant suns could unleash enough energy to trigger biologically relevant chemical reactions in an orbiting planet's atmosphere.
Researchers claim flashes of light seen in sky surveys could have been UFOs drawn to Earth by nuclear tests, but more mundane explanations should be explored first.
This quiz dives into the historic and scientific journey behind the search for life in the universe—testing your knowledge of the thinkers, missions, and discoveries that shaped our cosmic curiosity.
As missions prepare to visit ocean worlds like Enceladus and Europa, new findings show scientists must first learn to distinguish between radiation-made organics and those born in a subsurface sea.
What about those previously studied plumes of methane and meteorites potentially stuffed with the fossils of Martian microbes?