News Articles

What's Up August 2018
Solar System
Aug 1, 2018
Dark moonless nights for the summer Perseid Meteor Shower!
Solar System, Mars
Feb 20, 2018
The planet Mars has fascinated scientists for over a century. Today, it is a frigid desert world with a carbon dioxide atmosphere 100 times thinner than Earth’s. But evidence suggests that in the early history of our solar system, Mars had an ocean’s worth of water. NASA’s James Webb Space... Read More
Hubble image of Mars
Solar System, Planets of Our Solar System
Feb 15, 2018
Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm – once big enough to stretch across the Atlantic Ocean from Boston to Portugal – is shrinking out of existence as seen in pictures of Neptune taken by NASA’s Hubble Space Telescope.
four part image with globes of neptune over BW closeups
Solar System, Mars
Feb 15, 2018
NASA’s Jim Green and bestselling author Andy Weir explore the fascinating intersection of science and science fiction.
Solar System
Feb 1, 2018
New Horizons Principal Investigator Alan Stern talks about what we’ve learned about Kuiper Belt object 2014 MU69 and the remarkable story of how -- against all odds -- the New Horizons team captured MU69’s fleeting shadow on Earth as the object passed in front of a distant star.
Artist's concept of NASA’s New Horizons spacecraft flying by 2014 MU69 on Jan. 1, 2019
Universe, Earth, Sun, Solar System
Jan 30, 2018
Sixty years ago, on January 31, 1958, the United States joined the "space race" with the successful launch of the Explorer 1 satellite. But the event was much more than a rocket launch.   
America's Debut in Space Poster
Solar System, Planets of Our Solar System
Jan 26, 2018
In this episode of Gravity Assist, Jim Green talks with New Horizons Principal Investigator Alan Stern of the Southwest Research Institute about what the July 2015 flyby of Pluto revealed about this mysterious and diverse world.
Pluto in enhanced color
Solar System, Planets of Our Solar System
Jan 18, 2018
In this episode of Gravity Assist, NASA’s Jim Green and Amy Simon discuss Uranus, Neptune, and Neptune’s intriguing moon – Triton -- and what we still have to learn about these mysterious bodies.
Uranus and Neptune
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.
Mars
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