Physics Astrophysics


21 Dec 2020
In the 1970s, physicists uncovered a problem with the Standard Model of particle physics—the theory that describes three of the four fundamental forces of nature (electromagnetic, weak, and strong interactions; the fourth is gravity). They found that, while the theory predicts that a symmetry between particles and forces in our Universe and a mirror version should be broken, the experiments say otherwise. This mismatch between theory and observations is dubbed “the Strong CP problem”—CP stands for Charge+Parity. What is the CP problem, and why has it puzzled scientists for almost half a century?
02 Dec 2020
Yuto Minami at KEK and Eiichiro Komatsu at Kavli IPMU developed a new method to calibrate detectors to the light from dust in our Galaxy, thereby describing a new physics, with 99.2 percent accuracy, that may show parity symmetry breaking.
02 Dec 2020
A research team led by Kavli IPMU graduate student Hiroki Yoneda has shed new night on the massive star and its neutron star companion, which are thought to be at the core of the gamma-ray binary system LS 5039.
13 Nov 2020
How hot is the Universe today? How hot was it before? A new study by an international team of researchers, including members of the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), suggests that the mean temperature of gas in large structures of the Universe has increased about 3 times in the last 8 billion years, to reach about two million Kelvin today.
Reconstructed images of what MG J0414+0534 would look like if gravitational lensing effects were turned off.
27 Mar 2020
Astronomers obtained the first resolved image of disturbed gaseous clouds in a galaxy 11 billion light-years away by using ALMA.
Montage of the CO molecule radio emission-line intensities in the three regions observed by the Star Formation Project and the Nobeyama 45 m Radio Telescope.
24 Mar 2020
Astronomers have captured new, detailed maps of three nearby interstellar gas clouds containing regions of ongoing high-mass star formation.
An artist’s impression of a satellite forming around a giant gas planet.
09 Mar 2020
Researchers found that dust encircling a young gas giant can create a “safety zone,” which keeps a large moon from falling into the planet as the system evolves.
05 Mar 2020
An international team of astronomers using ALMA has captured the very moment when an old star first starts to alter its environment.
Optical image of Titan taken by NASA Cassini spacecraft.
14 Feb 2020
Planetary scientists using ALMA revealed the secrets of the atmosphere of Titan, the largest moon of Saturn.
matter and anti-matter timeline
03 Feb 2020
Gravitational waves could contain evidence to prove that neutrino particles reshuffled matter and anti-matter, explains a new study.
17 Jan 2020
Astronomers at the National Astronomical Observatory of Japan have analyzed the paths of two objects heading out of the Solar System and determined that they likely originated from outside of the Solar System.
15 Jan 2020
Astronomers uncovered the true identity of the fireball spotted on April 29, 2017.
Composite ALMA image of the debris disk around the young star 49 Ceti.
23 Dec 2019
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas.
A blow-up of a small portion of the Subaru/XMM-Newton Deep Field.
19 Dec 2019
A distant galaxy more massive than our Milky Way has revealed that the 'cores' of massive galaxies in the Universe had formed already 1.5 billion years after the Big Bang.
ALMA and NASA/ESA Hubble Space Telescope image of a young galaxy surrounded by a gaseous carbon cocoon.
16 Dec 2019
Researchers have discovered gigantic clouds of gaseous carbon more than a radius of 30,000 light-years around young galaxies using ALMA.
Artist's impression of planets orbiting a supermassive black hole.
25 Nov 2019
Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole.
Diagram illustrating the microlensing event studied in this research.
01 Nov 2019
Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through gravitational microlensing.
26 Aug 2019
A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has unveiled the dynamics of the bloch point in an asymmetric permalloy disk.
26 Aug 2019
A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has shed new light on the mysterious origin of such ultra-high-energy cosmic rays (UHECRs) that has puzzled astrophysicists for decades.


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