Researchers from Rice University, UCLA, Michigan State and the University of New Mexico have discovered a planetary-scale tug-of-war between life, deep Earth and the upper atmosphere that is expressed in atmospheric nitrogen. The research appears this week in Science Advances.
Objects scattered to the inner region of the Solar System by Jupiter's growth brought most of the water now found on Earth. Authors of an journal Icarus article describe a computational model which simulates the gravitational interaction between celestial bodies during the era of planet formation, also providing basis for the hypothesis of the dragging of water-rich "planetesimals".
The gas composition of a planet's atmosphere generally determines how much heat gets trapped in the atmosphere. For the dwarf planet Pluto, however, the predicted temperature based on the composition of its atmosphere was much higher than actual measurements taken by NASA's New Horizons spacecraft in 2015. A new study published November 16 in Nature proposes a novel cooling mechanism controlled by haze particles to account for Pluto's frigid atmosphere.
On Nov. 14, scientists with the California Institute of Technology, the University of Washington and eight additional partner institutions, announced that the Zwicky Transient Facility, the latest sensitive tool for astrophysical observations in the Northern Hemisphere, has seen 'first light' and took its first detailed image of the night sky. When fully operational in 2018, the ZTF will scan almost the entire northern sky every night.
A new robotic camera that can capture hundreds of thousands of stars and galaxies in a single shot has taken its first image -- an event astronomers refer to as 'first light.' The camera is the centerpiece of a new automated sky survey called the Zwicky Transient Facility (ZTF), based at Caltech's Palomar Observatory. As partners in the ZTF effort, University of Maryland astronomers made important contributions to the planning and design of the project.
Born from the remnants of Tropical Cyclone 28W, Tropical Depression 29W only lasted a few days before it began rapidly decaying. NASA-NOAA's Suomi NPP satellite found the disorganized storm weakening over the Malay Peninsula.
Chemists at The Scripps Research Institute (TSRI) have found a compound that may have been a crucial factor in the origins of life on Earth.
Sun-gazing missions SOHO and STEREO watched the return of comet 96P/Machholz when it entered their fields of view between Oct. 25-30. It is extremely rare for comets to be seen simultaneously from two different locations in space, and these are the most comprehensive parallel observations ever taken of this comet.
New NASA research proposes a novel approach to sniffing out exoplanet atmospheres. It takes advantage of frequent stellar storms from cool, young dwarf stars to highlight signs of possible life.
A team of WSU researchers has for the first time observed and recorded the creation of hexagonal diamond under shock compression, revealing crucial details about how it is formed. The discovery could help planetary scientists use the presence of hexagonal diamond at meteorite craters to estimate the severity of impacts.