Astronomy Knowledge

2023-07-06 13:43:40 ክፈት / አስተያየት ይስጡ

2023-07-03 20:00:50 Join For Science Facts! ክፈት / አስተያየት ይስጡ

2023-06-29 23:26:38 The first stars of the universe were very different than the stars we see today. They were made purely of hydrogen and helium, without heavier elements to help them generate energy in their core. As a result, they were likely hundreds of times more massive than the sun. But some of the first stars may have been even stranger. In the early universe, dark matter could have been more concentrated than it is now, and it may have powered strange stellar objects known as dark stars.
These dark stars would have been gigantic, with a diameter tens of thousands, even hundreds of thousands of times wider than the sun. But they would have been dim and fairly low-density. If they existed, they would have been too faint and distant for current telescopes to detect them. But the Nancy Grace Roman space telescope, formerly called WFIRST, in combination with the JWST, can help us in finding them. If successful, then this might provide insight regarding the formation of supermassive black holes. ክፈት / አስተያየት ይስጡ

2023-06-28 20:07:20 Join For Unknown Facts! ክፈት / አስተያየት ይስጡ

2023-06-27 14:25:11 Scientists have detected a new carbon compound, methyl cation, in space for the first time using NASA’s James Webb Space Telescope. This compound, crucial in forming complex carbon-based molecules, was found in a young star system in the Orion Nebula.

Source ክፈት / አስተያየት ይስጡ

2023-06-27 09:48:01 #Space
#Universe

@astronomic ክፈት / አስተያየት ይስጡ

2023-06-26 18:38:17 Mars colonization has begun: https://t.me/SHOCKINGPOLITICS

#PROMO ክፈት / አስተያየት ይስጡ

2023-06-25 20:17:25 Coolest Rocky Exoplanet Ever: James Webb Reveals Surprising Atmosphere of TRAPPIST-1 C

NASA’s James Webb Space Telescope has discovered that exoplanet TRAPPIST-1 c, despite being the same size as Venus and receiving similar radiation, does not have a thick carbon dioxide atmosphere, making it unlikely to be a Venus analog. The planet, which has the coolest measured temperature for a rocky exoplanet, might have formed with minimal water content. It either lacks an atmosphere or possesses a very thin one, and further research will investigate temperature variations on the planet and continue studying potential atmospheric conditions. ክፈት / አስተያየት ይስጡ

2023-06-24 21:42:55 ​Tryptophan, An Amino Acid Essential For Life, Has Been Found In Interstellar Space

◉Tryptophan is one of the 20 amino acids considered essential for the formation of proteins, which are key macromolecules for the development of life on Earth.

◉The data took into account from many regions of star and planet formation, but it was in one of the nearest and best known regions, the molecular cloud complex in Perseus, and in particular in the stellar system IC 348 where the combination of all the spectroscopic data from the satellite has allowed us to attain the máximum sensitivity and to identify lines which tryptophan produces in the laboratory.

◉The study also presents evidence that tryptophan-associated emission lines may also be present in other star-forming regions and suggests that its presence, and possibly that of other amino acids, is common in the gas from which stars and planets form. “It is likely that amino acids, the building blocks of proteins, may be enriching the gas in the protoplanetary discs and atmospheres of young, newly formed exoplanets and perhaps accelerating the emergence of life there” says Iglesias-Groth. ክፈት / አስተያየት ይስጡ

2023-06-14 17:06:47 World Economic Forum offers new debris mitigation guidelines

The World Economic Forum (WEF) has released a new set of guidelines intended to reduce the creation of orbital debris with the support of some, but not all, major satellite operators.

— The Space Industry Debris Mitigation Recommendations document outlines recommendations to:
◉ Avoid collisions that can create debris by limiting the lifetime of satellites in orbit after they have completed their missions.
◉ Improve coordination among satellite operators.

Some major companies, though, have not signed on. They include SpaceX, which operates by far the largest satellite constellation with its Starlink system, and Amazon, which is developing its Project Kuiper constellation. Even some satellite operators that have espoused the importance of space sustainability, like Viasat, are not included. ክፈት / አስተያየት ይስጡ