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Results 21 - 40 of 44.


Astronomy / Space - History / Archeology - 05.09.2022
Red Giant Betelgeuse was yellow some 2,000 years ago
Red Giant Betelgeuse was yellow some 2,000 years ago

Astronomy / Space - Physics - 25.08.2022
Carbon dioxide in an exoplanet atmosphere
The James-Webb-Telescope provides insights into the composition and formation of planets outside our solar system. Using the James Webb Space Telescope, an international collaboration of astronomers with Laura Kreidberg of the Max Planck Institute for Astronomy has captured infrared light filtered through the atmosphere of a hot gas giant 700 light-years away.

Astronomy / Space - Physics - 05.08.2022
No trace of dark matter halos
No trace of dark matter halos
Signs of disturbance in the dwarf galaxies of one of Earth's nearest galaxy clusters indicate an alternative gravity theory According to the standard model of cosmology, the vast majority of galaxies are surrounded by a halo of dark matter particles. This halo is invisible, but its mass exerts a strong gravitational pull on galaxies in the vicinity.

Astronomy / Space - 28.07.2022
Galaxies behind a gravitational magnifier
Galaxies behind a gravitational magnifier
The James Webb Telescope reveals highly distant objects Using the first science image released by the James Webb Space Telescope (JWST) this month, an international team of scientists led by the Max Planck Institute for Astrophysics has built an improved model for the mass distribution of the galaxy cluster SMACS J0723.

Earth Sciences - Astronomy / Space - 28.07.2022
Meteoritic Evidence for Very Early Volcanism in the Nascent Solar System
Meteoritic Evidence for Very Early Volcanism in the Nascent Solar System
An international team of researchers, including scientists from Freie Universität Berlin, publish a new study Scientists from Freie Universität Berlin, University of Bristol, Northwest University Xi'an, and the Institute of Geochemistry of the Chinese Academy of Sciences have published the results of a new determination of the crystallization age of 4566.6 ± 0.6 million years for a meteorite called Erg Chech 002 (EC 002).

Astronomy / Space - Physics - 25.07.2022
Preparing for the World's biggest radio telescope
Preparing for the World’s biggest radio telescope
Astronomers simulate physical processes in the interstellar medium of galaxies at "Cosmic Noon" for future SKAO observations An international team of researchers has demonstrated that the Square Kilometre Array Observatory (SKAO) is capable of detecting radio emissions from normal spiral galaxies in the early universe.

Astronomy / Space - 19.07.2022
Dormant black hole discovered outside our galaxy
Dormant black hole discovered outside our galaxy
The "Police of Black Holes" with participation of the University of Bonn shows a stellar-mass black hole A team of international experts, renowned for debunking several black hole discoveries, have found a stellar-mass black hole in the Large Magellanic Cloud, a neighbour galaxy to our own. Moreover, they found that the star that gave rise to the black hole vanished without any sign of a powerful explosion.

Astronomy / Space - 14.07.2022
Neutrino Factories in Deep Outer Space
Neutrino Factories in Deep Outer Space
Neutrinos that reach our planet from the depths of the Universe originate from blazars. Astrophysicists have proven this for the first time. The Earth's atmosphere is continuously bombarded by cosmic rays. These consist of electrically charged particles of energies up to 10 20 electron volts. That is a million times more than the energy achieved in the world's most powerful particle accelerator, the Large Hadron Collider near Geneva.

Astronomy / Space - 06.07.2022
Early stone tools were not rocket science
Early stone tools were not rocket science
Archaeologically excavated stone tools - some as much as 2.6 million years old - have been hailed as evidence for an early cultural heritage in human evolution. But are these tools proof that our an-cestors were already becoming human, both mentally and culturally? Dr. Claudio Tennie und William Snyder from the Department of Early Prehistory and Quaternary Ecology at the University of Tü-bingen have tested this traditional interpretation in a study funded by the European Re-search Council.

Astronomy / Space - Chemistry - 28.06.2022
A sanitizer in the galactic centre region
A sanitizer in the galactic centre region
Many of us have probably already - literally - handled the chemical compound iso-propanol: it can used as an antiseptic, a solvent or a cleaning agent. But this substance is not only found on Earth: researchers led by Arnaud Belloche from the Max Planck Institute for Radio Astronomy in Bonn have now detected the molecule in interstellar space for the first time.

Astronomy / Space - 08.06.2022
New Sky Map Showing 4.4 Million Galaxies
New Sky Map Showing 4.4 Million Galaxies
For 7 years, an international research team that included the Hamburg Observatory of Universität Hamburg gathered data for a new sky map depicting 4.4 million galaxies. Previously, these galaxies were unknown. The map has now been published in the journal "Astronomy & Astrophysics". This discovery was possible by the largest-ever radio telescope LOFAR (Low Frequency Array), which has receiving stations in 7 European countries.

Life Sciences - Astronomy / Space - 02.06.2022
Bacterial cellulose enables microbial life on Mars
Research team studies kombucha cultures under extraterrestrial conditions An international research team with participation from the University of Göttingen has investigated the survival of kombucha cultures under Mars-like conditions. Kombucha cultures are also known as tea fungi and are used to produce beverages.

Life Sciences - Astronomy / Space - 02.06.2022
Bacterial cellulose enables microbial life on Mars
Research team including Göttingen University studies kombucha cultures under extraterrestrial conditions An international research team including the University of Göttingen has investigated the chances of survival of kombucha cultures under Mars-like conditions. Kombucha is known as a drink, sometimes called tea fungus or mushroom tea, which is produced by fermenting sugared tea using kombucha cultures - a symbiotic culture of bacteria and yeast.

Astronomy / Space - Physics - 12.05.2022
An image of the Milky Way's black hole
An image of the Milky Way’s black hole
Observation with the Event Horizon Telescope improves our understanding of the processes at the galactic centre It sits deep in the heart of the Milky Way, is 27,000 light years from Earth, and resembles a doughnut. This is how the black hole at the centre of our galaxy appears in the image obtained by researchers using the Event Horizon Telescope (EHT).

Astronomy / Space - Computer Science - 06.05.2022
Asteroid treasure in the Hubble archive
Asteroid treasure in the Hubble archive
The data of the space telescope contain the traces of many unknown celestial bodies With a sophisticated combination of human and artificial intelligence, astronomers uncovered 1701 new asteroid trails in archival data of the Hubble Space Telescope spanning the past 20 years. While about one third could be identified and attributed to known objects, more than 1000 trails probably correspond to previously unknown asteroids.

Earth Sciences - Astronomy / Space - 28.04.2022
Graveyard of Earth’s Plates: Ancient Protocrust of Earth Discovered in Depths of Earth’s Mantle
Earth's earliest crust, more than four billion years old, survived deep in the mantle / Traces of ancient Earth's crust still exist today in volcanic rocks at Earth's surface / Publication in PNAS Dr. Jonas Tusch and Carsten Münker, both scientists at the Institute of Geology and Mineralogy at the University of Cologne, along with their colleague Dr. Elis Hoffmann, Freie Universität Berlin, used chemical analyses of magmatic rocks to prove that the remains of the first crust of our planet lie buried at great depths in Earth's mantle.

Astronomy / Space - Physics - 14.04.2022
MAGIC telescopes observe stellar explosion
MAGIC telescopes observe stellar explosion
The MAGIC telescopes have observed the nova RS Ophiuchi shining brightly in gamma rays at extremely high energy. The Gamma rays emanate from protons that are accelerated to very high energies in the shock front following the explosion. This suggests that novae are also a source of the ubiquitous cosmic radiation in the universe which consists mainly of protons rich in energy, which race through space at almost the speed of light.

Astronomy / Space - 24.03.2022
The wild years of our Milky Way galaxy
The wild years of our Milky Way galaxy
A very long ago, our Milky Way had a truly eventful life: between about 13 and 8 billion years ago, it lived hard and fast, merging with other galaxies and consuming a lot of hydrogen to form stars. With the help of a new data set, Maosheng Xiang and Hans-Walter Rix from the Max Planck Institute for Astronomy in Heidelberg have reconstructed the turbulent teenage years of our home galaxy.

Astronomy / Space - Physics - 28.02.2022
Cosmic sonic boom
Cosmic sonic boom
An international research team is investigating the aftermath of a gigantic cosmic burst with the help of NASA's "Chandra" X-ray observatory. Theoretical physicists from the University of Jena are supporting the researchers by providing detailed predictions and simulations to enable interpretation of Chandra's X-ray data.

Astronomy / Space - 28.02.2022
New finding in astronomy: black hole spins on its side
New finding in astronomy: black hole spins on its side
International team with Freiburg participation discovers unexpected incline of a black hole. Scientist Svetlana Berdyugina, Professor of Astrophysics at the University of Freiburg and Director of the Leibniz Institute for Solar Physics (KIS), together with an international team of astronomers, has reliably measured for the first time a large difference between the rotation axis of the black hole and the axis of the orbit of the binary star system named MAXI J1820+070.