NASA’s Curiosity Mars Rover Starts Unpacking Boxwork Formations

The rover recently drilled a sample from a new region with features that could reveal whether Mars’ subsurface once provided an environment suitable for life. New images from NASA’s Curiosity Mars rover show the first close-up views of a region scientists had previously observed only from orbit. The images and data being collected are already […]

NASA’s MAVEN Makes First Observation of Atmospheric Sputtering at Mars

After a decade of searching, NASA’s MAVEN (Mars Atmosphere Volatile Evolution) mission has, for the first time, reported a direct observation of an elusive atmospheric escape process called sputtering that could help answer longstanding questions about the history of water loss on Mars. Scientists have known for a long time, through an abundance of evidence, […]

NASA’s Dragonfly Mission Sets Sights on Titan’s Mysteries

When it descends through the thick golden haze on Saturn’s moon Titan, NASA’s Dragonfly rotorcraft will find eerily familiar terrain. Dunes wrap around Titan’s equator. Clouds drift across its skies. Rain drizzles. Rivers flow, forming canyons, lakes and seas.  But not everything is as familiar as it seems. At minus 292 degrees Fahrenheit, the dune […]

Webb’s Titan Forecast: Partly Cloudy With Occasional Methane Showers

Saturn’s moon Titan is an intriguing world cloaked in a yellowish, smoggy haze. Similar to Earth, the atmosphere is mostly nitrogen and has weather, including clouds and rain. Unlike Earth, whose weather is driven by evaporating and condensing water, frigid Titan has a methane cycle. NASA’s James Webb Space Telescope, supplemented with images from the […]

NASA’s Webb Reveals New Details, Mysteries in Jupiter’s Aurora

NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth. With Webb’s advanced sensitivity, astronomers have studied the phenomena to better understand Jupiter’s magnetosphere. Auroras are created when high-energy particles enter […]

NASA’s Webb Reveals New Details, Mysteries in Jupiter’s Aurora

NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth. With Webb’s advanced sensitivity, astronomers have studied the phenomena to better understand Jupiter’s magnetosphere. Auroras are created when high-energy particles enter […]

Eye on Infinity: NASA Celebrates Hubble’s 35th Year in Orbit

In celebration of the Hubble Space Telescope’s 35 years in Earth orbit, NASA is releasing an assortment of compelling images recently taken by Hubble, stretching from the planet Mars to star-forming regions, and a neighboring galaxy. After more than three decades of perusing the universe, Hubble remains a household name — the most well-recognized and […]

Planet Sizes and Locations in Our Solar System

Our solar system has eight planets, and five officially recognized dwarf planets. Which planet is biggest? Which is smallest? What is the order of the planets as we move out from the Sun? This is a simple guide to the sizes of planets based on the equatorial diameter – or width – at the equator […]

Have We Been to Uranus? We Asked a NASA Expert: Episode 56

Have we ever been to Uranus? The answer is simple, yes, but only once. The Voyager II spacecraft flew by the planet Uranus back in 1986, during a golden era when the Voyager spacecraft explored all four giant planets of our solar system. It revealed an extreme world, a planet that had been bowled over […]