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A rebuttal in Astronomy & Geophysics countered that Loeb et al. had ignored that the amount of iridium deposited around the globe, 2.0 × 10 8 –2.8 × 10 8 kg (4.4 × 10 8 –6.2 × 10 8 lb), was too large for a comet of the size implied by the crater, and that they had overestimated likely comet impact rates.
"Chicxulub and mass extinction" fails to mention any reason as to why the impact is thought to have caused an extinction, which seems like a major omission. No strong opinions on the "Expedition 364" section, though it does seem large relative to the rest of the article.
3,300 km (2,100 mi) [1] 50% Largest confirmed impact basin on Mars and in the Solar System Hellas: 2,300 km (1,400 mi) 34% Largest visible crater in the Solar System Isidis ~1,900 km (1,200 mi) [2] 28% Heavily degraded to the northeast Argyre: 1,700 km (1,100 mi) [3] 25.1% May have an outer ring 2750 km in diameter [3] Vesta Rheasilvia
The opening of Cennet is 250 x 110 m 2 (820 x 360 ft 2) and its average depth is 70 metres (230 ft). It is possible to reach the bottom of Cennet by a primitive staircase composed of 300 steps. In 2020 also an elevator was established.
A volcanic crater is a bowl-shaped depression in the ground caused by volcanic activity, usually located above the volcano's vent. [11] During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a conduit, until they reach the crater's vent, from where the gases escape into the atmosphere and the magma is erupted as lava.
No. 2 Georgia is resting its national championship hopes on backup quarterback Gunner Stockton following Carson Beck's season-ending elbow surgery on Monday. Coach Kirby Smart said Monday that ...
Meanwhile, make the polenta: Combine 1 1⁄2 cups water, the milk, salt and pepper in a 2-quart saucepan and bring to a soft boil over medium-high heat. Stir in the polenta and reduce the heat to low.
Jason Kelce appears to be in the clear after making headlines last month by smashing a person's phone in response to an anti-gay slur.. Penn State University Police announced Tuesday that no ...