
Cassini Confirms a Global Ocean on Saturn's Moon Enceladus

Cassini Confirms a Global Ocean on Saturn's Moon Enceladus

Jeff Bezos's Blue Origin Will Launch Rockets and Spaceships from Florida
The Amazon founder announced plans to fly a fleet of reusable spacecraft from the Cape Canaveral spaceport


Philae's Real-Time Descent and Enceladus's Global Ocean [Video]
This week brings a video reconstructed from images of the Philae lander's approach to a comet, and a major new analysis of data from the Cassini mission that bolsters the case for a global, not just local, ocean beneath the icy crust of Enceladus

The Milky Way's Missing Mass: Partially Found
A galactic satellite reveals where some of our galaxy's elusive material is hiding

Duck-Shaped Comet Confounds Astronomers
Comet 67P/Churyumov-Gerasimenko’s incongruous chemical composition and shape raise questions about the origin of our solar system

NASA Struggles over Deep-Space Plutonium Power
Sluggish production of nuclear fuel could make solar power the preferred choice for the agency’s outer-planets missions

Self-Healing Spaceship Shielding Could Keep Astronauts Safer
A new lightweight material that heals itself when punctured could help spacecraft survive run-ins with debris. Christopher Intagliata reports

A New Billion-Mile Journey for New Horizons
NASA's New Horizons team decide on their next target, a classical Kuiper Belt object that can be reached by January 2019, but the agency must still approve funds for this extended science mission

Alien Transit Systems May Be a Giveaway in the Search for ET
A Harvard professor devises a scheme to detect extraterrestrials by tracking how they might commute from one world to the next

3 Years into Its Mission, Curiosity's Stunning Martian Panorama
NASA's Curiosity rover provides a beautiful, scientifically appetizing view of what's ahead on Mount Sharp on Mars

Cassini Makes Final Close Flyby of Saturn Moon Dione
The spacecraft makes one last close flyby of Saturn's pockmarked moon Dione August 17, in search of direct evidence that the moon is geologically alive and active

To Play or Not to Play the Exoplanet Name Game?
Campaigns to name exoplanets seem like Shakespearean farce