It’s a shame that there is no time to cover all interesting scientific stories every month. In the past, we have covered the end -of -year summary of the cool scientific story we missed. This year, we are experimenting with monthly collections. The January list includes a paper that uses a laser to clarify the Peruvian mummy tattoo. Slow spear and dart physics. How the black hole changes over time. Among other attractive research, the quantum “CAT state” for error correction on quantum computers.
Track the change in black holes over time
Left: EHT image of M87*from 2018 and 2017 observation campaigns. Central: An example of an image from a general relative magnet hydrant mechanics (GRMHD) simulation in two different times. Right: A blurred simulation snapshot that matches the EHT observation resolution.
Credit: EHT collaboration
In 2019, the event Horizon Terescope announced The first direct image taken so far It is located on the Black Hall in the center of the elliptical galaxy, Messier 87 (M87), about 55 million light -year -old Virgo constellations. Astronomers combined the previous observation data to learn about the details of the plasma turbulence dynamics near the M87*event near HORIZO N as follows. paper It is published in Journal Astronomy and Astrophysics.
Luciano Resola, co -author of the Geeth University Frankfurt in Germany, compared the two photos of Mt. Everest, one year away. The basic structure of the mountain rarely changes significantly at that point, but you can observe the changes in clouds near the peak and guess from the characteristics of the direction of the wind. For example, in the case of M87*, a new analysis confirmed the existence of the brightest bright ring with the bottom, and it was confirmed that the rotation axis was far from the earth. “Many of these observations will be accurate in the next few years with the ultimate goal of producing a movie that happens near the M87*.” Resola said.
Astronomy and astronomical physics, 2025. Doi: 10.1051/0004-6361/202451296 (About DOI).
The laser reveals Peruvian mummy tattoos
Chancay Mummy tattoo forefoot.
Credit: Michael Pitman and Thomas G. Kay
Humans around the world have been tattooing for over 5,000 years, given traces found in mummy relics from Europe to Asia and South America. However, considering how much ink tends to “bleed” over time, as with normal physical collapse, it may be difficult to decipher the details of those tattoos. Infrastructure imaging is useful, but with innovative twists, scientists have decided to use a laser that faintly shine, and many of the tattoos found in Peruvian 1,200 years ago. I will clarify detailed details. paper It is published in the minutes of the National Science Academy.
