U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

Even though it is one of the most abundant elements (predominately in the form of nitrogen gas (N 2) in the Earth’s atmosphere), plants can only utilize reduced forms of this element.

A giant, gaping hole that opened up in the Sun's atmosphere has been identified as the source of a surprising abundance of a ...