Planetary Science
- Space
Water on the moon: How much?
Ron Cowen reports from the annual meeting of the American Astronomical Society’s Division for Planetary Sciences.
- Health & Medicine
Measuring citations: Calculations can vary widely
Depending on how citation tallies will be used, it may pay to cherry pick the appropriate counting house.
- Astronomy
Rock solid planet
Researchers have found the first compelling evidence for a rocky planet beyond the solar system.
- Earth
Atmospheric rollercoaster followed Great Oxidation Event
Analyses of chromium isotopes in banded iron formations suggest oxygen levels fell for a period after the Great Oxidation Event.
- Planetary Science
Celestial population boom
Large meteoroids are probably more common than telescopic surveys suggest, new analyses find.
- Planetary Science
Stars go kaboom, spilling cosmic secrets
Astronomers hope type 1a supernovas will help in quest to explain dark energy.
- Earth
Comet likely culprit in Tunguska blast
Analysis of shuttle plume movement suggests Tunguska event could have caused clouds over London.
- Earth
Lopsided lights
Simultaneous snapshots reveal that northern and southern auroras aren’t always alike.
- Planetary Science
Losing Louisiana
A new model predicts that rises in sea level, combined with subsiding lands, will claim a tenth of the state by century’s end.
- 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.
- 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.
