NASA wants to change the way we think about the habitable zone
Earth is just one of many possible models for sustaining life.
Hubble telescope spots evidence of water on Trappist-1 planets
There's a very slim chance the planets are habitable.
The TRAPPIST-1 star system may be too old for life
It's up to twice as old as the Solar System.
Astronomers spot the smallest star so far
It’s only slightly larger than Saturn.
ESA’s search for Earth’s ‘twin’ starts in 2026
The PLATO mission will use 26 telescopes to search for habitable planets.
Trappist-1 planets may have formed from chunks of melting ice
A new theory explains why the planets are so close together and similar in size.
NASA offers first look at planet-rich Trappist-1 star system
The crude images help to characterize our cosmic neighbor.
After Math: Oh, balls
Sometimes it takes astronomically big ones to succeed.
Hubble study finds two potentially habitable exoplanets
A pair of nearby planets offer rocky surfaces and dense atmospheres.