Free_Astronomy_-_SeptemberOctober_2019

21 SPACE CHRONICLES A rtist impression of the Milky Way. [Gabriel Pérez Díaz, SMM (IAC)] ten billion years ago there was a vio- ...

22 SPACE CHRONICLES by ESO First 18 ELT primary mirror blanks arrive at Safran Reosc T he shipping container with the first 18 E ...

23 SPACE CHRONICLES T his is the first segment blank for mirror 1 (M 1 ) of the ELT. Manu- factured by SCHOTT, it was com- plete ...

24 SMALL^ BODIES Every day, over 100 tons of dust and particles of interplanetary sand fall to Earth. At least once a year, a me ...

SMALL BODIES 25 J ust over 111 years have passed since the famous Tunguska event, and during this long period, various hypothese ...

P hotographs taken during the first expeditions of Leonid Kulik, showing glimpses of the devastation of the Siberian taiga, prod ...

changes in atmospheric pressure at the first light of day. Similar observations were made in Jena and Potsdam, in Germany, but a ...

28 SMALL BODIES in the region, made it possible to establish that the epicenter of the propagation of the seismic waves was in t ...

SMALL BODIES 29 to a hypothetical cen- ter, which the expedi- tion was unable to reach. The goal of reaching the epicenter was i ...

SMALL BODIES be associated with the asteroid have ever been found. Even if a sin- gle crater unequivocally attributa- ble to the ...

31 SMALL BODIES in their accuracy. The only thing known with certainty is the effects produced on the environment, of which ther ...

32 SMALL BODIES It will therefore be essential to con- tinue and intensify the search for smaller and smaller asteroids, until a ...

Tunguska 111 EN_l'Astrofilo 29/08/2019 15:43 Page 33 ...

34 SPACE CHRONICLES The instrument, called NEAR (Near Earths in the AlphaCen Region), is designed to hunt for exoplanets in our ...

35 SPACE CHRONICLES Planets in the system (twice the size of Earth or bigger), would be de- tectable with the upgraded instru- m ...

36 SPACE CHRONICLES hidden by its glare) can be seen dur- ing a total eclipse, so the corona- graph creates a kind of artificial ...

37 SPACE CHRONICLES ity to infrared wavelengths associ- ated with potentially habitable exo- planets. It will therefore be able ...

38 SPACE CHRONICLES “Moon forming” circumplanetary disk in a distant star system A LMA image of the dust in PDS 70 , a star syst ...

39 SPACE CHRONICLES rally emitted by hydro- gen gas accreting onto the planets. The new ALMA observations in- stead image the fa ...

40 ASTRONAUTICS Research on space radiation has expanded rapidly in recent years, but many uncertainties remain in predicting th ...