Discovery of Twin Supernovae Could Open Up Dark Energy Experiments
Discovery of virtually identical supernovae spectra leads to improved measurements in distance to the bright objects which could benefit dark energy research.
Planet Formation May Begin As Stellar Formation Continues
Researchers use computer models and find planets form earlier in a star’s life than originally expected, beginning while the star is still forming.
Minty Fresh Planetary Disk Contains Menthol
Methanol found in a warm part of a protoplanetary disk, leading to the conclusion that the substance had to have come from the surrounding cold gas clouds.
Nitrogen Accretion Depends on Style of Planet Formation
For a planet to collect enough nitrogen to sustain life as we have on Earth, a planet needs to grow more quickly than it separates into crust, mantle, and core.
Voyager 1 Hears Plasma ‘Hum’ in Interstellar Space
The Voyager I spacecraft has now departed our solar system, and as it flies through interstellar space, it’s detecting the steady drone of plasma waves.
OSIRIS-REx Begins Long Journey Home With Rock Samples
On May 10, NASA’s OSIRIS-REx spacecraft started on the long journey home and is expected to fling rocks samples at Earth on September 24, 2023.
Galactic Bars May Funnel Material and Trigger Star Formation
The central bar in barred spiral galaxies can act as a highway to funnel gas and dust from the outer regions to the core, triggering star formation and feeding the black hole.
Book Review: 1491 by Charles C. Mann
Dr. Pamela Gay reviews “1491” by Charles C. Mann, which looks at how humans have terraformed our own world, both on purpose and by mistake.
The Effects of Mayan Terraforming on Birds of Paradise Wetlands
Lidar observations and on-site excavations lead to the discovery that ancient Mayans used canals to manage crops and changed the wetlands for the long-term.
Saturn’s Core is Fuzzy and Magnetic Field is Symmetrical
Two new papers used data from Cassini’s Grand Finale to analyze both the composition and structure of Saturn’s core as well as the shape of the planet’s magnetic fields.
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