Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

Do certain exoplanets mirror Earth regarding their distribution of iron and water? This is what a recent study published in Nature Astronomy hopes to address as an international team of researchers ...

Astronomers have spotted a distant world "shedding" its atmosphere into space in real time, creating a giant cloud of helium ...

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

The exoplanet is located seven times closer to its star than Mercury is to our own planet.

As much as 95% of an exoplanet's water could be trapped forever deep inside its iron core, transforming what we thought we knew about water worlds and potentially rendering them even more habitable ...

"When the Earth's mantle melts, it produces basalts," said Esteban Gazel, professor of engineering. Basalt, a gray-black volcanic rock found throughout the solar system, are key recorders of geologic ...

Scientists have discovered the strongest evidence to date for a stratosphere on a planet outside our solar system, or exoplanet. A stratosphere is a layer of atmosphere in which temperature increases ...

Named for the Gaelic god of war, Smertrios has a composition and density that are a challenge to planet formation models. When you purchase through links on our site, we may earn an affiliate ...