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

James Webb takes its first direct image of an exoplanet

The James Webb Infrared Space Observatory has captured its first direct image of superjupiter HIP 65426b as it orbits the yellow-white dwarf in a wide orbit. The image made it possible to clarify the parameters of the planet and prove the high efficiency of the observatory in direct observations of exoplanets. A preprint of the… Continue reading James Webb takes its first direct image of an exoplanet

A galaxy merger could extinguish a burst of star formation.

Astronomers have found for the first time an example of the result of the merger of two galaxies, where the merger process itself inhibited the formation of new stars, throwing out most of the cold gas reserves from the galaxies. In the case of SDSS J1448+1010, about 47 percent of the material needed to form… Continue reading A galaxy merger could extinguish a burst of star formation.

Astronomers have not found a dense atmosphere near a hot super-Earth

Astronomers, thanks to the TESS and Spitzer telescopes, have determined that the hot super-Earth GJ 1252b is not capable of having a dense atmosphere, even with a high initial pressure at the surface of the planet or a high carbon content in the magma. Instead, it may be surrounded only by a tenuous exosphere, replenished… Continue reading Astronomers have not found a dense atmosphere near a hot super-Earth

James Webb finds organic molecules in icy particles around a very young protostar

The James Webb Infrared Space Telescope has reliably discovered a number of organic molecules, including complex ones, in the composition of ice particles in the core of the very young protovesche IRAS 15398−3359. In addition, the telescope examined the structure of one of the outflows of matter from the protostar, which consists of four shells.… Continue reading James Webb finds organic molecules in icy particles around a very young protostar

Supernova 1181 fits the model of the merger of two white dwarfs

Astronomers from six countries have confirmed the idea that supernova SN 1181 AD, which exploded in 1181, represents the second remnant of a rare type of Iax supernova confirmed in the Milky Way. It is assumed that two carbon-oxygen white dwarfs or a massive carbon-oxygen dwarf with a helium companion merged without the resulting white… Continue reading Supernova 1181 fits the model of the merger of two white dwarfs

Astronomers have limited the lifetime of the first “intra-Venus” asteroid

Astronomers presented the results of studies of the recently discovered asteroid Ailohchahnim, whose orbit lies entirely within the orbit of Venus. It turned out that the body has a diameter of 1.7 kilometers, it can be classified as a silicate asteroid and in 1-2 million years it can collide with the inner planets or even… Continue reading Astronomers have limited the lifetime of the first “intra-Venus” asteroid

The Event Horizon Telescope saw the bend of the distant blazar's jet

The Event Horizon Telescope (EHT) has captured the most detailed image yet of the interior of the relativistic jet blazar J1924-2914, whose light took 3.5 billion years to reach Earth. It turned out that as it moves away from the core, the jet begins to bend, and toroidal magnetic fields can act in the region… Continue reading The Event Horizon Telescope saw the bend of the distant blazar's jet

“James Webb” for the first time reliably found carbon dioxide in the atmosphere of an exoplanet

The James Webb Infrared Space Observatory has for the first time reliably detected carbon dioxide in the atmosphere of an exoplanet. The target of the observations was the hot Saturn WASP-39b, and their results will help test models for the formation of the exoplanet. A preprint of the work was published on arXiv.org. Carbon dioxide… Continue reading “James Webb” for the first time reliably found carbon dioxide in the atmosphere of an exoplanet

The CHEOPS telescope confirmed the discovery of two exoplanets near the “Valley of Sub-Neptunes”

Astronomers using ground-based telescopes and the CHEOPS space telescope have confirmed the discovery of two exoplanets around an orange dwarf close to the Sun. One of the planets is a super-Earth and falls in the poorly explained “sub-Neptune valley”, and the second was classified as a sub-Neptune and is located near the “valley”. A preprint… Continue reading The CHEOPS telescope confirmed the discovery of two exoplanets near the “Valley of Sub-Neptunes”