Martian meteorites are turning out to be quite an asset. These tiny bits of rock were chipped off of Mars, flung into space, and eventually landed on Earth about 11 million years ago. Today they’re giving scientists new insight into the fine structure of the outer later of the red planet. Science Alert explains: https://flip.it/Lb8hDb #Science#Mars#Earth#Meteorites
Is life capable of spreading from planet to planet? A pair of astronomers recently proposed a detection strategy based on the concept of panspermia, the idea that life can start on one planet and spread to others by hitching rides on meteorites. More from Live Science: https://flip.it/ef13Z0 #Science#Life#Aliens#Space#Meteorites
I want to start a discussion group here on #Mastodon.
This group will focus on meteorites and meteorite-related topics.
I am not sure if I should just repurpose the #MeteoriteMonday hashtag for this group, or make up a new one. Feedback from the public would be useful and encouraged here.
This artist's conception shows a young, hypothetical planet around a cool star. A soupy mix of potentially life-forming chemicals can be seen pooling around the base of the jagged rocks.
It's too late for #MeteoriteMonday. but check out this gorgeous unequilibrated chondrite.
It is a LL3 type that is absolutely packed with #chondrules of all sizes and colors. Some of the chondrules are armored with rings of troilite and kamacite.
This slice is from #meteorite NWA 15662. It was recovered from the Algerian Sahara in 2022.
#Introduction I am Geoff Notkin. I hosted TV's "Meteorite Men" and "STEM Journals" and made shows for PBS, NASA, NatGeo, Disney, the BBC et al. I have adventured on six continents pursuing my love of #paleontology and #meteorites.
I believe in the promise of the #Fediverse and am here to talk about arts / sciences and have fun 🔭 😀 📽️
Some #corundum on Earth is older than our solar-system; these pre-solar grains are found in some chondritic meteorites. Oxygen isotopes reveal that they formed in the puffed-off atmospheres of old red-giant stars. From Frisch et al. 2005. #MinCup23#Cosmochemistry#Meteorites
This image is a composite taken during the peak of the Perseid meteor shower on the 13.08.2023 at a remote location near Göhrde in Germany. It consists of 14 photographs of the Milky Way stacked with #Sequator. 3 additional photographs of the same scene captured meteorites that I added with #GIMP to the final Milky Way image. The single image processing was conducted in #darktable .
Nikon D500, Tokina AT-X 11-20 f2.8 PRO DX, 11 mm, f2.8, 10s, ISO 3200, tripod
Great talk by Veronica Tollenaar on #BlueIce areas in #Antarctica that somehow manages to unite meteorites, machine learning, satellite data and the impact of #ClimateChange ..
It turns out that warming temperatures help the #meteorites melt their way into the ice and be lost. #IUGG23#IUGG
Why you shouldn’t use magnets when looking for meteorites
A popular tool for identifying meteorites can destroy scientific information
The team’s numerical calculations and experiments with earthly rocks — stand-ins for meteorites — confirmed that bringing a hand magnet close to a rock can rearrange the spins of the rock’s electrons. That rearrangement overwrites the imprint of a previous magnetic field, a process called remagnetization. https://www.sciencenews.org/article/magnets-meteorites-space#meteorites#magnets#NoNo#paleomagnetism#SusceptibilityMeter