Science February 20, 2021
Sounding Rocket CLASP2 Elucidates Solar Magnetic Field
Cooperative operations between a solar observation satellite and a sounding-rocket telescope have measured the magnetic field strength in the photosphere and chromosphere above an active solar plage region.
Topics February 20, 2021
CLASP2 Team Receives NASA/MSFC Group Achievement Honor Award
The Japan-US-Europe Joint Rocket Experiment (CLASP2) team received the Marshall Space Flight Center (MSFC) Group Achievement Honor Award from the National Aeronautics and Space Administration (NASA).
Science February 16, 2021
Supercomputer Turns Back Cosmic Clock
Astronomers have tested a method for reconstructing the state of the early Universe by applying it to 4000 simulated universes using the ATERUI II supercomputer at NAOJ. They found that together with new observations the method can set better constraints on inflation.
Science January 26, 2021
When galaxies collide—Models suggest galactic collisions can starve massive black holes
It was previously thought that collisions between galaxies would necessarily add to the activity of the massive black holes at their centers. However, researchers have performed the most accurate simulations of a range of collision scenarios and have found that some collisions can reduce the activity of their central black holes.
Topics January 13, 2021
A new-year’s message from the Director General, NAOJ
A new-year’s message from the Director General of NAOJ, Dr. Saku Tsuneta
Science December 18, 2020
Compressive Fluctuations Heat Ions in Space Plasma
New simulations carried out in part on the ATERUI II supercomputer in Japan have found that the reason ions exist at higher temperatures than electrons in space plasma is because they are better able to absorb energy from compressive turbulent fluctuations in the plasma.
Topics December 18, 2020
The Subaru Telescope Photographs the Next Target Asteroid for Hayabusa2
On December 10, 2020 (Hawaiʻi Standard Time), the Subaru Telescope imaged the small asteroid 1998 KY26, the target of Hayabusa2’s extended mission.
Science December 8, 2020
Study Confirms Dark Coating Can Reduce Satellite Reflectivity
Observations conducted by the Murikabushi Telescope of Ishigakijima Astronomical Observatory confirmed that dark coating can reduce satellite reflectivity by half.
Topics November 26, 2020
The Subaru Telescope Hails Return of Hayabusa2
On November 20, 2020 (HST), the Subaru Telescope captured Hayabusa2 on its way back to Earth after exploring the asteroid (162173) Ryugu.
Science November 26, 2020
Earth Faster, Closer to Black Hole in New Map of Galaxy
Earth just got 7 km/s faster and about 2000 light-years closer to the supermassive black hole in the center of the Milky Way Galaxy. But don...
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