Not much is known about exoplanets that are smaller than Jupiter, because of how far they are and their relatively small sizes. However, a study published Friday describes the presence of water and a ...

A 'primitive atmosphere' has been discovered surrounding a distant exoplanet by Nasa scientists. The exoplanet, which sits 430 million light years from Earth, has an atmosphere composed almost ...

A study combining observations from NASA’s Hubble and Spitzer space telescopes reveals that the distant planet HAT-P-26b has a primitive atmosphere composed almost entirely of hydrogen and helium.

May 11 (UPI) --Astronomers have discovered a primitive atmosphere surrounding a "Warm Neptune" exoplanet, a Neptune-like world orbiting closer to its host star. The discovery, detailed in the journal ...

A pioneering new study uncovering the 'primitive atmosphere' surrounding a distant world could provide a pivotal breakthrough in the search to how planets form and develop in far-flung galaxies. A ...

The CO 2 level in Mars' primitive atmosphere 3.5 billion years ago was too low for sediments, such as those found by NASA's Curiosity exploration vehicle in areas like the Gale Crater on the planet's ...

THE atmosphere on primitive Earth was much richer in hydrogen than previously thought and could have been the source of the molecules that led to early life, a new analysis shows. The study lends ...