New study suggests tighter restrictions on exoplanet habitability

Accounting for the buildup of toxic gases predicted to occur in the atmospheres of most planets narrows the habitable zone for complex life by half and, in some cases, rules it out altogether, the study concludes.

Harsh radiation no barrier to life on nearby exoplanets

Hopes for finding life on four rocky exoplanets relatively close to Earth have been boosted by new modelling that shows biological systems could survive the intense and prolonged bursts of X-ray and UV radiation.

Complex Life Might Require a Very Narrow Habitable Zone

A research into how life evolved on Earth has shown that water alone does not guarantee life – nor does the presence of oxygen gas. And that two other major biosignatures, carbon dioxide and carbon monoxide could be needed.

Newly Found Planet Could Host Primitive Life, Study Suggest

Barnard b or GJ 699 b – might have microbes or other simple life in its environment as long as there is a lot of thermal activity within the planet itself. This would theoretically provide enough energy for life to survive.

The Closest Exoplanet Planet Could be Habitable With a Dayside Ocean

A new NASA-led study shows that Proxima b could support the existence of an ocean on its dayside, which means it could still be habitable.

This Rocky Exoplanet Is the Most Likely to Support Life

Of the thousands of known exoplanets, Kepler-452b has the most ideal combination of UV light exposure and conditions for liquid water.

Exoplanets may contain vast amounts of water

Scientists have shown that water is likely to be a major component of those exoplanets which are between two to four times the size of Earth. It will have implications for the search of life in our Galaxy.

Good News For The Search For Life, - The Trappist System Might Be Rich In Water

Scientists have been hard at work trying to determine the densities of the TRAPPIST-1 planets, and it looks like water is abundant in the TRAPPIST system.

TRAPPIST-1 Star System Contains Two Potentially Habitable Planets

It’s been less than a year since astronomers detected TRAPPIST-1, a remarkable star system located 39 light years from Earth. New research suggests life could take root on at least two of these planet.

Periodic Table of Exoplanets Classifies Over 3,700 Known Worlds

Astronomer from Puerto Rico has put together a Periodic Table of Exoplanets, where each of the 3,700 confirmed exoplanets is slotted into its own discrete category—including planets that could harbor life.

Another Possible Exoplanet Discovered

A new study has indicated that the Gliese 832 system (located just 16 light-years away) may have a third exoplanet.

Scientists Analyze Possible Vegetation on the TRAPPIST-1 Exoplanets

A new scientific model studies whether liquid water can be maintained on planets in various conditions, and could be used to confirm the presence of vegetation on faraway worlds.

Composition of Earth-size planets in TRAPPIST-1 system

An astrophysics researcher has identified the possible compositions of the seven planets in the TRAPPIST-1 system. TRAPPIST-1e may be the best candidate for future habitability studies.

Potentially habitable super-Earth is a prime target for atmospheric study

The study of alien worlds is entering its next phase as astronomers amass the best planets outside our Solar System to look for signs of life. A newly discovered “super-Earth” has catapulted itself to the top of that list.

Nearby Venus-like exoplanet might have oxygen atmosphere

New research shows that GJ 1132b might possess a thin, oxygen atmosphere — but no life due to its extreme heat.