The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

K2-360 is a newly found planetary system with a super-dense planet, likely the core of a former larger world, shaped by dynamic interactions with its companion. An international team of researchers ...

It turns out K2-360b is this extremely dense super-Earth, rich in iron, suggesting it may once have had a thick, gaseous atmosphere that was stripped away by tidal forces and stellar radiation.

Imminent loss of NASA's Aura and Canada's SCISAT will severely diminish scientists’ ability to monitor ozone-depleting substances in the stratosphere.

While trying to determine if it could use the entire Earth's atmosphere as a massive sensor, the US military’s Defense Advanced Research Projects Agency (DARPA) made a highly unusual detection.

DARPA is using Earth’s atmosphere as a powerful sensor, allowing the detection of events like rocket reentries and illicit ...

Dynamical evolution of a planetary system of close-in super-Earths and mini-Neptunes and an Earthlike planet at 1 au. It shows the evolution of the semimajor axis of planets that survived at the ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

An artist's impression of a super ... that to Earth, where the mass-fraction of water is just 0.02%. Yet if TOI-152b had been reduced by stellar radiation, there would be no water or atmosphere ...