TOI 700 d is the first Earth-size habitable-zone world discovered by TESS.
How ocean worlds could redefine the search for alien life
Scientists investigate “hycean” exoplanets with hydrogen-rich atmospheres and liquid water oceans, challenging traditional definitions of habitability.
Lack of thick atmosphere for Trappist 1c shows JWST is ready to hunt for signs of life
Recent investigations of this rocky exoplanet signify a significant milestone in planetary science and for the James Webb Space Telescope.
The ongoing search for life on Venus
While a new model finds life is not responsible for Venus’ odd atmospheric chemistry, the aerial biosphere hypothesis is important in the search for life on other worlds.
What scientists hope to learn with the new James Webb Space Telescope
The new James Webb Space Telescope will collect infrared light from distant corners of the cosmos, enabling scientists to see further than ever before.
Scientists identify alien planets that could be observing Earth
An intriguing thought experiment catalogs which of our interstellar neighbors might be gazing back at us.
Oxygen biosignature alone does not indicate life on other planets
Oxygen is a promising exoplanet biosignature, but several scenarios exist in which a lifeless, rocky planet could evolve to have non-biological oxygen in its atmosphere.
Could planets with underground oceans be concealing alien life?
Planets that contain subsurface oceans could be a potential treasure trove of life, expanding the number of habitable planets in the galaxy.
Surprising number of exoplanets could host life
What is the maximum number of habitable planets for a star, and what does this mean in our search for extraterrestrial life?
Astronomers estimate there are 36 communicating civilizations in our galaxy
Research sheds new light on our hope of finding intelligent life across the galaxy.