A pair of Columbia astronomers using NASA’s Hubble Space Telescope and Kepler Space Telescope have assembled evidence for the existence of a moon orbiting a gas-giant planet 8,000 light-years away.
Yasmeen Asali and John Staunton, two Columbia undergraduates from the astronomy department, spent two months in Chile in a practicum at Universidad Católica’s Astrophysics Institute as part of an ongoing exchange program between both institutions.
Scientists have long determined what extinct animals ate by analyzing carbon isotopes locked inside their fossil teeth. But a new study shows that in many cases, they may be plugging the wrong numbers into their equations.
A new study that reconstructs the deep history of our planet’s relationship to the moon and other planetary bodies shows that 1.4 billion years ago, a day on Earth lasted about 18.7 hours.
“It’s a totally new way of studying earthquakes,” said study coauthor Benjamin Holtzman. “These machine learning methods pick out very subtle differences in the raw data that we’re just learning to interpret.”