Planetary Science
- Planetary Science
New Horizons recovers from overload, is on track for Pluto flyby
New Horizons transmits the best pictures of Pluto to date shortly before the spacecraft went quiet over the weekend.
- Planetary Science
Pluto may have spots the size of Missouri
Dark spots emerge on the surface of Pluto in recent images from the New Horizons spacecraft.
- Physics
In retirement, Nobelist takes up moon bouncing
A lifelong amateur radio enthusiast, Joseph Taylor sends signals via the moon.
- Astronomy
Super-Earths are not a good place for plate tectonics
The intense pressures inside super-Earths make plate tectonics less likely, new research suggests.
- Planetary Science
50 years ago, Mariner 4 sent back first pictures from Mars
On July 14, 1965, Mariner 4 became the first spacecraft to fly by Mars. The probe also sent back the first pictures of another planet taken from space.
- Planetary Science
Rosetta mission extended until September 2016
The Rosetta spacecraft will explore comet 67P through September 2016 and then may go to sleep on the comet’s surface.
- Planetary Science
Pluto and Charon’s orbital dance captured in color
New Horizons has captured the first true-color movie of Pluto and Charon orbiting one another.
- Planetary Science
Evidence mounts for active volcanoes on Venus
The Venus Express orbiter detected possible signs of active volcanism on the planet next door.
- Planetary Science
Evidence mounts for active volcanoes on Venus
The Venus Express orbiter detected possible signs of active volcanism on the planet next door.
- Planetary Science
NASA moves ahead with a mission to Europa
A NASA mission slated for the 2020s to Jupiter’s icy moon will try to figure out if the ocean there is habitable.
- Earth
Most of Earth’s impact craters await discovery
Hundreds of undiscovered impact craters probably dot Earth’s surface, new research estimates.
- Planetary Science
Water’s origin story, science and sci-fi and more reader feedback
Readers discuss how Earth got its water, chat about a hot spot's violent past and more.
