Sciences and Bioengineering Sciences
The team’s new work has confirmed that the asteroid, which created the Chicxulub crater, hit the Earth’s surface with such a force that it pushed rocks, which at that time were ten kilometres beneath the surface, farther downwards and then outwards. These rocks then moved inwards again towards the impact zone and then up to the surface, before collapsing downwards and outwards again to form the peak ring. In total they moved an approximate total distance of 30 kilometres in a matter of a few minutes.
Dit zijn de resultaten van het onderzoek naar de Antwerpse luchtkwaliteit
Vooral Borgerhoutse 'street canyons' zwaar getroffen door luchtvervuiling
Volledig artikel in de morgen
Dr. Matt Genge
Abstract: "Micrometeorites are extraterrestrial dust particles that survive atmospheric entry to be recovered from the Earth's surface. These particles are the fastest dust on Earth, experiencing velocities of more than 11 km/s. Combining observations of real micrometeorites with numerical models of atmospheric entry helps us understand their formation."
The talk will be held on Wednesday, 26 October, at 12:30, in Building D, Room 5.236. We look forward to seeing you there!
Dr. Pascal Rosenblatt (Royal Observatory of Belgium), Friday September 30, 13:00, ULB.
The two moons of Mars, Phobos and Deimos, were first thought to be asteroids captured by the red planet. The remote sensing of their surfaces argue in favor of this scenario but the present near-circular and near-equatorial orbit of the two moons could not fit expected orbits of capture objects. An alternative scenario has been proposed in which the two small moons of Mars were formed after a giant collision occurred more than 4 billions years ago, similarly to the formation of our Moon. But this scenario raises challenges as how to form small moons (and not a big one as for the Earth) and to maintain them in orbit around Mars over billions of years.
At the last European Association of Archaeologists meeting held in Vilnius, Lithuania, Christophe Snoeck was interviewed by “Deutschlandfunk” (nationwide German radio broadcast) to talk about his recent research on the isotopic studies of cremated remains. He discusses the process of cremation itself as well as the possbility to use strontium isotopes on cremated remains for mobility studies.
The interview was aired at “Deutschlandfunk” (nationwide radio broadcast, ~ the “German BBC”) at the daily science show “Forschung aktuell” on Friday 2 September 2016
Listen to the inverview here
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