Nonlinearity of quantum dot waveguide helps entangle photons

European physicists have studied in detail the interaction of single photons in a photonic crystal waveguide containing a quantum dot. They showed that by varying the duration of the pulses and their delay, it is possible to achieve varying degrees of nonlinearity, as well as control the degree of correlation of light quanta. The study… Continue reading Nonlinearity of quantum dot waveguide helps entangle photons

The first South Korean lunar probe sent the first photo of the Earth and the Moon

The Danuri probe, which became South Korea's first lunar probe, sent back to Earth the first image of the Earth and the Moon. Thus, engineers confirmed the functionality of the camera, which examined the far side of the Moon from an unusual distance, according to the website of the Korean Astronomy and Space Science Institute… Continue reading The first South Korean lunar probe sent the first photo of the Earth and the Moon

Astronomer Frank Drake dies

On Friday, September 2, 2022, at the age of 93, American astronomer Frank Drake, who became one of the pioneers of the search for radio signals from extraterrestrial civilizations, died. He is also one of the creators of the records for the Pioneer and Voyager probes and the Arecibo radio message, according to the SETI… Continue reading Astronomer Frank Drake dies

NASA has fixed a glitch in Voyager 1's telemetry sending system.

The Voyager 1 team solved the problem of sending anomalous telemetry that had been coming from the probe for several months. It turned out that the cause of the failure was a faulty on-board computer, which was mistakenly assigned the operation of sending data. The problem has now been fixed, according to NASA's website. Voyagers… Continue reading NASA has fixed a glitch in Voyager 1's telemetry sending system.

Half of the cytoplasm was taken from a living cell and its transcript was sequenced

Swiss scientists have proposed and developed a method that allows them to decipher the transcriptome of individual cells without killing them. To do this, they performed a biopsy of the cytoplasm and sequenced the resulting genetic material. Scientists have used this technique to separate different types of morphologically similar cells and describe how the expression… Continue reading Half of the cytoplasm was taken from a living cell and its transcript was sequenced

James Webb finds its first cool brown dwarf candidate

The James Webb Infrared Space Telescope has discovered a cool brown dwarf candidate, its first such discovery. The object is located in a thick disk or halo of the Milky Way, its nature should be confirmed by further observations. A preprint of the work was published on arXiv.org. Brown dwarfs occupy an intermediate position between… Continue reading James Webb finds its first cool brown dwarf candidate

South Korea's first lunar probe, Danuri, launched aboard Falcon 9

The Falcon 9 launch vehicle carrying the Danuri lunar probe, South Korea's first interplanetary spacecraft, launched from Cape Canaveral. The probe will operate in a lunar polar orbit for at least a year, studying the composition and structure of the Moon's surface, and will also look for ice deposits in the Moon's polar craters. The… Continue reading South Korea's first lunar probe, Danuri, launched aboard Falcon 9

The Arab station Al Amal showed the ultraviolet glow of the Martian atmosphere

The Al Amal Mars station team presented an animation of the dynamics of the ultraviolet glow of the Martian atmosphere, covering one Earth year. An increase in the brightness of the glow occurs due to increased activity of the Sun and a reduction in the distance between it and Mars, reported on the mission's Twitter… Continue reading The Arab station Al Amal showed the ultraviolet glow of the Martian atmosphere

The lunar holes turned out to be warm enough to build habitable bases

Planetologists using the LRO orbital probe have determined that the temperature of the soil inside the lunar holes is higher than on the surface of the Moon, and they themselves represent heat traps. Because of this, the sinkholes are suitable for placing research inhabited bases in them. Article published in the magazine Geophysical Research Letters.… Continue reading The lunar holes turned out to be warm enough to build habitable bases

Planetologists have compiled a new global map of hydrogen content in the soil of the Moon

Planetary scientists have presented a new global map of hydrogen content in the surface layer of the Moon, compiled using data from the Lunar Prospector orbital probe. The average hydrogen content of lunar soil is 47 parts per million, indicating that it comes mainly from the solar wind. At the same time, scientists were able… Continue reading Planetologists have compiled a new global map of hydrogen content in the soil of the Moon