The crew of an alien spacecraft entering the Solar System, maybe looking for planets bearing alien life, would be struck by ...

It is proposed that K2-18b is an ocean world with an atmosphere rich in hydrogen, which automatically rules out the presence ...

Average Surface Temperatures of All Planets: There are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter ... 27 million°F (15 million°C), whereas its surface – the photosphere – ...

NASA is also working to evolve key technologies that will enable low-cost exploration missions to Mars and throughout the solar system. This includes what is considered to be the most important ...

NASA's Mars Reconnaissance Orbiter (MRO) just snapped an off-Earth action shot the likes of which we've never seen before. On Feb. 28, MRO's HiRISE (High-Resolution Imaging Science Experiment ...

A NASA rover taking rock samples on Mars has uncovered a plentiful mineral that was invisible to orbiters studying the Red Planet from space. Scientists say the discovery of siderite, a type of ...

From ancient volcanic deposits to layers formed by vanished lakes and river deltas, the rover's journey helps scientists piece together Mars’ hidden past. Among the most exciting discoveries are ...

All evidence points to Mars having had a carbon dioxide-rich atmosphere billions of years ago, but insufficient carbonates in Martian soil challenge this theory. Now, a new study using data from ...

Here’s the latest dirt on Mars. NASA’s trusty Curiosity rover, which has been exploring the so-called red planet for years, just unearthed something huge — a stash of carbon-rich carbonate ...

NASA's Curiosity rover has found iron-rich carbonates on Mars, offering new clues about the planet's ancient climate and potential habitability. While slowly climbing the slopes of Mount Sharp ...

A selfie taken by NASA's Curiosity rover on Mars. NASA/JPL-Caltech/MSSS Over the past 13 years, the four-wheeled Curiosity rover has traveled approximately 21 miles (34 kilometers) across the ...