Space
- Planetary Science
Solar system’s future could be bumpy
A new study assesses the chances that two planets will collide or a planet will plunge into the sun in the next 5 billion years.
- Astronomy
Pinning down a pulsar’s age
Reporting at a meeting of the American Astronomical Society, researchers suggest some of these swirling stellar remnants are older, younger by a factor of 10.
- Space
Galactic black holes may be more massive than thought
The giant black holes at the cores of massive nearby galaxies may be two to four times heftier than estimated.
- Physics
Mechanical systems all tangled up
Researchers link the motion of two ion pairs through “spooky action at a distance.”
- Space
Astrometry nabs an exoplanet
long-proposed method of searching for extrasolar planets has finally discovered one — a body six times heavier than Jupiter that orbits a dwarf star 20 light-years from Earth.
- Earth
Phytoliths as climate clues
Tiny silica plant structures from soil could track temperature changes.
- Earth
Bricks, mortar and magnetism
Medieval French castle, churches yield new data about Earth’s changing magnetic field.
- Space
Evidence mounts for liquid interior of a Saturn moon
Plumes of Enceladus offer hints that moon is now or was in the recent past partially liquid inside.
- Earth
A more organic meteorite
Some meteorites may contain a higher concentration of organic chemicals than previously thought.
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- Life
Life on Earth took a licking, kept on ticking
Earth's early organisms may not have had to restart after a long spell of asteroid impacts.
