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clawmarks · 20 hours
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Das Mineralreich in Bildern - J. G. von Kurr - 1858 - via e-rara
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whoisandyloam · 19 hours
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mindblowingscience · 3 days
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If you look from above, you can see thousands of stone structures dotting the landscape of the Arabian peninsula. On the ground, you can find a bounty of stone tools and ancient fireplaces scattered along the edges of ancient lakes, as well as rock art depicting hunting and herding scenes in the surrounding mountains. Despite the visibility of these sites, only in the past decade or so have archaeologists taken a dedicated interest in them. Some of the structures have now been dated at up to 10,000 years old. However, the arid climate, baking days and freezing nights, and intense wind erosion are not kind to some of the other relics archaeologists prize. To date, there has been little found in the way of fossils or the kind of deeply buried, layered deposits that can open a window onto the history of a place. Until recently, no archaeologists had surveyed any of the hundreds of caves and lava tubes recorded across northern Arabia. In 2019, our team began to look in these subterranean locations—and in a new study published April 17 in PLoS ONE, we report on the first documented occupation of a lava tube in the Arabian Peninsula.
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citizen-film · 3 days
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beautifulmars · 1 day
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HiPOD: Gullies in the Depths of Hellas
Gullies are commonly found in the Martian mid-latitudes, particularly in the Southern Hemisphere. However, they are rare in the deepest parts of the massive Hellas impact basin.
One likely reason for this is that gullies are found on steep slopes, which seem to be less common in Hellas. For this image, HiRISE targeted a relatively fresh crater where previous images from the MRO Context Camera appeared to show gullies. This high-resolution look confirms the gullies and will allow scientists to compare them in detail with gullies elsewhere on the planet. (Image cutout is less than 5 km across.)
ID: ESP_082273_1360 date: 14 February 2024 altitude: 258 km
NASA/JPL-Caltech/UArizona
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epoxyconfetti · 2 months
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lilacandladybugs · 1 year
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my friend told me that her boyfriend got her a super cool rock while they were on vacation together and you would not BELIEVE my disappointment when i realized she was talking about her engagement ring
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silverbridge-harbor · 2 months
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A juvenile bug isn't called a larva until it reaches the surface. While it's still underground it's called a margma
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zoe248 · 9 months
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It me
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briery · 3 months
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Aquamarine with Morganite from Minas Gerais, Brazil. By dusted77 on Instagram.
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shaonicwhite · 10 months
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i think we should all consider getting emotional over this xkcd. as a group. let's get emotional about it
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whoisandyloam · 6 months
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mindblowingscience · 2 days
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The Lunar Environment Monitoring Station (LEMS) is one of the first three potential payloads NASA selected for the Artemis 3 mission, which will land humans on the moon in 2026 for the first time in more than 50 years. The compact, autonomous seismometer is designed to withstand the long, cold lunar night and operate during the day, continuously monitoring ground motion from moonquakes in the region around the lunar south pole, where Artemis 3 astronauts will land. LEMS is expected to operate on the lunar surface for at least three months and up to two years, demonstrating its capability to measure the moon's geophysical activity unassisted over long periods of time, according to a statement from NASA. 
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leahberman · 6 months
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painted peaks; death valley, california
instagram - twitter - website
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