Science December 3, 2018
Combination of Space-based and Ground-based Telescopes Reveals more than 100 Exoplanets
An international team of astronomers using a combination of ground and space based telescopes have reported more than 100 extrasolar planets in only three months.
Science November 30, 2018
Black Hole ‘Donuts’ are Actually ‘Fountains’
Based on computer simulations and new observations from ALMA, researchers have found that the rings of gas surrounding active supermassive black holes are not simple donut shapes.
Science November 22, 2018
ALMA’s Highest Frequency Receiver produces its First Scientific Result on Massive Star Formation
The Atacama Large Millimeter/submillimeter Array (ALMA) has tuned in another new channel for signals from space.
Science October 12, 2018
Little Supernova is Big Discovery: the Origin of Binary Neutron Stars
An international research team discovered the first recorded “ultra-stripped supernova,” a rare, faint type of supernova that is believed to play a role in the formation of binary neutron star systems.
Topics October 4, 2018
Subaru Telescope Discovers Farthest Object in Solar System
Scientists using the Subaru Telescope announced the discovery of a new small object in the outer Solar System.
Science October 1, 2018
Cosmological Constraints from the First-Year of the Subaru Hyper Suprime-Cam Survey
Using the powerful Japanese Subaru Telescope, the Hyper Suprime-Cam (HSC) survey collaboration team has made and analyzed the deepest wide-field map of the three-dimensional distribution of matter in the Universe.
Events September 13, 2018
Announcement of Holding Mitaka Open House Day 2018
Mitaka Open House Day 2018 will be held on Oct. 26 and 27, 2018.
Topics September 10, 2018
Asteroid Science Observations from Stargazing Party Telescope
Observations made with special equipment attached to the 50-cm Telescope for Public Outreach found that asteroid Phaethon has unique characteristics.
Science September 4, 2018
Veiled Supernovae Provide Clue to 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 team found that in many cases this explosion takes place inside a thick cloud of circumstellar matter shrouding the star.
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Science September 4, 2018
Falling Stars hold Clue for Understanding Dying Stars
An international team of researchers has proposed a new method to investigate the inner workings of supernovae explosions. This new method uses meteorites and is unique in that it can determine the contribution from electron anti-neutrinos, enigmatic particles which can’t be tracked through other means.