Space History

The Dimorph ram took place on September 26, 2022. A few minutes after the impact, the Italian cubesat LICIACube made a close flyby of the asteroid.

The pictures he took showed that the impact knocked out a large amount of matter from the surface of the Dimorph. According to experts, during the subsequent analysis of the cubesat images, they even managed to detect the shadows cast by the fragments of the Dimorph on the surface of Didymus.

In addition, the Dimorph has acquired a bright comet-like tail stretching for thousands of kilometers. Despite the fact that several months have passed since the impact, it can still be seen on telescope images.

In 2014, photographer and amateur astronomer Matt Malloy created an incredible image of the Sun’s activity by combining a huge number of photos transmitted to Earth by NASA’s SDO Solar Dynamics Space Observatory.

To create the image, Molloy used images taken between September 1 and October 8 of the same year. The author of the composition did not specify how many photos he used in total, but it is possible to calculate:

Every second, SDO transmits a new image of the Sun to Earth. There are 86,400 seconds in a day, which means the same number of pictures were transmitted every day. In 38 days, 3,283,200 photos were received. It turns out that Molloy worked with about so many photos of our luminary.

Red giants are dying stars in advanced stages of stellar evolution that have depleted the hydrogen reserves in their cores. Astronomers have discovered new evidence that red giants experience “disruptions”—abrupt structural changes—in their inner core.

Unfortunately, it is impossible to look directly inside the star. However, a method called asteroseismology, which measures fluctuations similar to “earthquakes” in stars, can give an indirect idea of the depths of stars. “Glitches” can affect these fluctuations or the frequencies and trajectories of gravitational and sound waves passing through the bowels of the star.

As the researchers explain: “Waves propagating inside stars cause minute changes in stellar brightness, which can be detected with the help of high-precision space instruments. These waves show the conditions of the medium in which they propagate, that is, the physical properties of the stellar interiors.”

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“Asteroid 2015 RN35 is large enough and will fly very close so that amateur astronomers can observe it,” scientists say.

It was called the “Christmas asteroid” and specified that it reaches 140 m in diameter.

Residents of the Southern hemisphere of the Earth will be able to observe it.

It is reported that the asteroid will approach our planet at a distance of 680 thousand km, so it does not pose a danger to humanity in the near future.

Scientists conducted a study based on observations of the Hubble telescope. The results indicate the presence of a mysterious glow surrounding the Solar System, which may lead to a revision of the model of its structure.

200 thousand Hubble images were sorted. The light of planets, stars, galaxies, asteroids and other known objects of observation was removed from them. As a result, an excess of observed light was detected, which is equivalent to the glow of ten fireflies scattered throughout the sky.

One possible explanation for this glow may be the reflection of sunlight from a sphere of minute dust that was created by comets penetrating from the outer layers of the Solar System. Such a dust shell could become a new component of the Solar System, which is usually not taken into account in its structure.