While studying GJ 1214b, researchers tracked the planet through nearly its entire orbit over the course of about 40 hours, according to NASA. The planet's year takes only 1.6 Earth days.

It looks like GJ 1214b might have an atmosphere that's made mostly out of water." That pushes this planet into "a category of its own in a way that was never certain before," says Kreidberg.

A team of researchers used the James Webb Space Telescope to observe exoplanet GJ 1214b’s atmosphere by measuring the heat it emits while orbiting its host star. Their results, published in the ...

The researchers determined that GJ 1214b has a large proportion of elements that are slightly heavier than hydrogen, which may make up water, methane, or some mix of the two. Further studies will be ...

GJ 1214b is a strange planet. It has a radius about 2.7 times that of Earth and a mass roughly eight times greater. It’s ...

The temperature on GJ 1214b shifted dramatically from day to night, getting as hot as 535 degrees Fahrenheit (280 degrees Celsius) and then cooling down by more than 100 degrees F at night.

It looks like GJ 1214b might have an atmosphere that's made mostly out of water." That pushes this planet into "a category of its own in a way that was never certain before," says Kreidberg.

Our own solar system has nothing like this planet, called GJ 1214b. It's bigger than the rocky planets like Earth, but still smaller than any of our system's ice or gas giants.

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...

Astronomers pointed the James Webb Space Telescope at a common kind of planet that's bigger than Earth but smaller than Neptune. What they saw wasn't what they expected.

She says astronomers have zeroed in on GJ 1214b in particular because it's the single-most accessible planet like this to observe. It orbits a small yet bright star that's relatively nearby, just ...