News Articles

Atlas V lifts off for InSight mission.
Solar System, Mars
May 7, 2018
NASA’s Mars Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is on a 300-million-mile trip to Mars to study for the first time what lies deep beneath the surface of the Red Planet. InSight launched at 7:05 a.m. EDT (4:05 am PDT) Saturday from... Read More
Solar System, Planets of Our Solar System
Jan 18, 2018
Just as the surface of oceans on Earth lies at an average elevation that we call “sea level,” Titan’s seas also lie at an average elevation.
Photo of body of liquid on Saturn's moon Titan
Solar System, Planets of Our Solar System
Jan 10, 2018
The sixth planet from the Sun, Saturn is a gas giant that’s best known for its striking icy rings. How old are the rings, and how are they changing over time? And what’s up with Saturn’s mysterious hexagon-shaped storm in the north polar region? In this episode of Gravity Assist, NASA’s Planetary... Read More
Image of Saturn
Solar System, Planets of Our Solar System
Jan 9, 2018
Our solar system is a wondrous place with a single star, our Sun, and everything that orbits around it - planets, moons, asteroids and comets - what do we know about this beautiful solar system we call home? It's part of an even larger cosmos with billions of other solar systems.
This illustration depicts NASA's Juno spacecraft soaring over Jupiter’s south pole.
Solar System, Mars
Dec 29, 2017
With Jim Green today is the “man about Mars,” Bruce Jakosky from the University of Colorado. Bruce is the principal investigator of NASA's MAVEN mission. Joining them is Michael Meyer the lead Mars scientist at NASA Headquarters.
Earth, Solar System
Dec 22, 2017
In 1968, Apollo 8 placed humans into lunar orbit for the first time. As the astronauts in their spacecraft emerged from behind the Moon, they were surprised and enchanted by an amazing view of Earth rising over the lunar horizon. Bill Anders quickly snapped a picture of the spectacular Earthrise.... Read More
Views of Home Poster
Solar System
Dec 20, 2017
NASA has selected two finalist concepts for a robotic mission planned to launch in the mid-2020s: a comet sample return mission and a drone-like rotorcraft that would explore potential landing sites on Saturn’s largest moon, Titan.
Artist concept of Dragonfly mission on Titan surface
Solar System
Dec 14, 2017
Did you know the Moon is slowly moving away from Earth and that the Moon has water? Jim Green is joined by lunar expert Sarah Noble to discuss how the Moon was formed, lava tubes and moonquakes, the “dark side of the Moon,” and mysteries we have yet to solve about Earth’s nearest neighbor.
Moon: Ilmenite Seen with Ultraviolet Light
Solar System, Sky Watching
Dec 8, 2017
The annual Geminid meteor shower has arrived. It's a good time to bundle up, go outside and let the universe blow your mind!
Black and white image showing multiple meteors in the sky.
Solar System
Dec 6, 2017
New Horizons will fly by its next exploration target, a distant Kuiper Belt object called 2014 MU69 in early 2019.
New Horizons 2018 Close Flyby of a Kuiper Belt Object
Solar System
Dec 5, 2017
If you tried to start a car that's been sitting in a garage for decades, you might not expect the engine to respond. But a set of thrusters aboard the Voyager 1 spacecraft successfully fired up Wednesday after 37 years without use.
Artist's concept of Voyager
Solar System, Planets of Our Solar System
Nov 29, 2017
The next stop on our virtual tour is Venus, the closest planet to Earth and the hottest planet in our solar system, with surface temperatures scorching enough to melt lead.
Image of Venus
Solar System
Nov 20, 2017
Astronomers recently scrambled to observe an intriguing asteroid that zipped through the solar system on a steep trajectory from interstellar space—the first confirmed object from another star. 
Artist’s concept of interstellar asteroid 1I/2017 U1 (‘Oumuamua)
Solar System
Nov 15, 2017
We start our “Gravity Assist” virtual tour of the solar system with – where else – the Sun!  How hot is the Sun, what are solar flares, and how does space weather affect us here in Earth? Jim is joined by Project Scientist Dr. Nicky Fox of the Johns Hopkins University Applied Physics Lab to... Read More
Gravity Assist Podcast Logo
Solar System
Nov 7, 2017
Heat from friction could power hydrothermal activity on Saturn's moon Enceladus for billions of years if the moon has a highly porous core, according to a new modeling study by European and U.S. researchers working on NASA's Cassini mission.
Black and white image of Enceladus