New Study Completely Changes Our Understanding of Stellar Evolution
At the end of its life, a red supergiant star explodes in a hydrogen-rich supernova. By comparing observation results to simulation models, an international research…
National Astronomical Observatory Of Japan
Astronomers Raise Doubts About the Relation Between Protoclusters and Quasars
Using Hyper Suprime-Cam (HSC) mounted on the Subaru Telescope, astronomers have identified nearly 200 “protoclusters,” the progenitors of galaxy clusters, in the early Universe, about…
Astronomers Use New Data to Create Extraordinary Dark Matter Map
A research team of multiple institutes, including the National Astronomical Observatory of Japan and University of Tokyo, released an unprecedentedly wide and sharp dark matter…
HINODE Satellite Views Record Breaking Solar Magnetic Field
Magnetism plays a critical role in various solar phenomena such as flares, mass ejections, flux ropes, and coronal heating. Sunspots are areas of concentrated magnetic…
Subaru Telescope Helps Create the Most-Extensive Map of Neutral Hydrogen Gas in the Early Universe
Using the Subaru Telescope, astronomers create the most-extensive map of neutral hydrogen gas in the early universe. Scientists have used the Suprime-Cam on the Subaru…
Astronomers Detect Signs of an Invisible Black Hole at the Center of the Milky Way
Using the Nobeyama Radio Telescope, a team of astronomers has detected signs of an invisible black hole with a mass of 100 thousand times the…
Titania May Provide False Signs of Life on Habitable Exoplanets
New research from the National Institutes of Natural Sciences shows that a previously unconsidered photochemical mechanism by titanium (IV) oxide (titania) can produce abiotic oxygen…
Astronomers Observe a Long-Hypothesized Mechanism for Coronal Heating
A team of astronomers has observed a long-hypothesized mechanism for coronal heating in which magnetic waves are converted into heat energy. Modern telescopes and satellites…
Astronomers Uncover the Ghostly Remnants of Galaxy Interactions
Using the Subaru Telescope, a team of astronomers reveal the ghostly remnants of galaxy interactions in a nearby galaxy group. Astronomers using the Subaru Telescope’s…
Astronomers Reveal Nine Large Concentrations of Dark Matter
Using weak gravitational lensing the newly developed Hyper Suprime-Cam on the Subaru telescope has revealed nine large concentrations of dark matter, each the mass of…
Nova Delphini 2013 Produces a Large Amount of Lithium
Using the 8.2-meter Subaru Telescope High Dispersion Spectrograph (HDS), a team of astronomers observed Nova Delphini 2013 and discovered that the outburst is producing a…
ALMA Reveals Gas Spirals as a Nursery of Twin Stars
Astronomers used observations from the Atacama Large Millimeter/submillimeter Array to identify spiral arms of molecular gas and dust around binary protostars, revealing for the first…
New Research Reveals Tidal Heating in the Deepest Part of the Lunar Mantle
In a newly published study, scientists reveal that there is an extremely soft layer deep inside the Moon and that heat is effectively generated in…
Astronomers Discover a Drastic Chemical Change Occurring in Birth of a Planetary System
Astronomers have discovered an unexpected chemical change in the transition zone between the infalling envelope and the gas disk around young protostar L1527. The international…
Observations Indicate Super-Earth GJ 1214 b Has a Water-Rich Atmosphere
New Subaru Telescope observations of super-Earth GJ 1214 b show that the exoplanet is likely to have a water-rich atmosphere. A Japanese research team of…
HiCIAO Helps Reveal the Structure of Protoplanetary Disks
By masking the bright light from a central star, HiCIAO can detect the detailed features of a star’s disk and the objects that it contains,…
Giant Gap PDS 70’s Protoplanetary Disk May Indicate Multiple Planets
An international team of astronomers discovered a giant gap inside in PDS 70’s protoplanetary disk, which may have resulted from the birth of multiple planets….
“Pigtail” Molecular Cloud Located in the Galactic Center
Using the NRO 45m Telescope at Nobeyama Radio Observatory, scientists discovered a “pigtail” molecular cloud, located in the Galactic center, approximately 30,000 light years away…