Planetary Science
- Planetary Science
Large asteroid buzzes Earth
Asteroid 2004 BL86 swings by Earth today at three times the distance to the moon, the closest asteroid encounter until 2027.
- Planetary Science
Decades-old idea brought to fruition: a mission to Mercury
In 1965, engineers proposed sending a spacecraft to Mercury with help from another planet’s gravity – a technique now used in many interplanetary missions.
- Planetary Science
Rosetta reveals a complex comet
Rosetta finds diverse landscapes on comet 67P, which could provide researchers with clues about how the solar system formed.
- Planetary Science
Young asteroids generated long-lasting magnetism
Pockets of iron and nickel in meteorites suggest that asteroids in the early solar system produced magnetic fields for much longer than once thought.
- Planetary Science
Mars orbiter locates lost Beagle 2 lander
The Beagle 2 lander, missing since 2003, has been found on the surface of the Red Planet in images from the Mars Reconnaissance Orbiter.
- Astronomy
Europa’s geysers play hard-to-see
Follow-up observations of Europa failed to confirm the existence of geysers venting the Jupiter moon’s hidden ocean into space.
- Planetary Science
Grazing crater rim may have saved comet lander
Bumping off the rim of a crater probably saved the robotic comet Philae from a cold, dark death, a new analysis of images suggests.
- Planetary Science
Rosetta may have spotted comet’s primordial ingredients
Photos taken by the Rosetta spacecraft may show pristine material that formed the solar system’s comets, asteroids and planets roughly 4.6 billion years ago.
- Planetary Science
Year in review: Rosetta mission hits its target
The Rosetta spacecraft and its lander Philae are providing an intimate look at the life of comet 67P/Churyumov-Gerasimenko.
- Planetary Science
Rover finds methane in Mars air, organics in rocks
NASA’s Curiosity rover has found organic molecules on Mars, but scientists can’t say whether they are a sign of life on the Red Planet.
- Planetary Science
Year in review: Tectonics active on Europa
Jupiter’s frozen moon Europa has a shifting exterior analogous to Earth’s plate tectonics.
- Planetary Science
Solar wind probably leaches Mars’ lower atmosphere
Initial results from NASA's MAVEN probe may help explain how Mars has lost its atmosphere: The solar wind penetrates the Red Planet’s atmosphere and fuels escaping gas.
