View larger. | Artist’s concept of a giant mega-Earth. The newly discovered mega-Earth GJ 523b is…
Category: Earth Sky
Pioneer 11: Watching the Saturn watchers # #
Pioneer 11 captured this image in September, 1979, from a distance of 248,500 miles (400,000 km).…
How do lava-world exoplanets keep their atmospheres?
Artist’s concept from NASA. Lava-world exoplanets like this one might be expected to be airless. But…
Meet a Saturn-sized exoplanet with Earth-like temperatures
Artist’s concept of a gas giant exoplanet orbiting its star. A new study from PennState University…
Huge rift valleys on Venus hint at a still-living planet
View larger/full image. | Some of the huge rift valleys on Venus as seen by NASA’s…
Fastest star in the galaxy could unlock black hole secrets
This video shows the fastest star in the galaxy, S301, as it orbits the supermassive black…
Could there be life in helium atmospheres on exoplanets?
View larger. | Artist’s concept of an exoplanet with a helium-dominated atmosphere. A new study suggests…
Image from Curiosity rover goes viral
Cropped image of the “jellyfish” on Mars. NASA’s Curiosity rover took this image on August 20,…
How earthly microbes on the moon might survive in the shade
View larger. | Microbes on the moon? Maybe! A new study says microbes that hitch a…
Pluto demoted to dwarf planet 20 years ago today
Pluto backlit, via New Horizons spacecraft on July 14, 2015. Image via NASA/ JHUAPL/ SwRI. Dwarf…