Simple Physics Explains Diamond Shapes of Ryugu and Bennu

Simple Physics Explains Diamond Shapes of Ryugu and Bennu

Using a simple model based on granular physics, like those used for modeling sand or sugar deposits, scientists have recreated the diamond shape of asteroids Ryugu and Bennu in computer simulations. Plus, the origins of loner dwarf galaxies and this week’s What’s Up.

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Magnitude 7.2 Earthquake Strikes Haiti to Devastating Effect

Magnitude 7.2 Earthquake Strikes Haiti to Devastating Effect

A magnitude 7.2 earthquake shook the island nation of Haiti, destroying thousands of homes and resulting in the loss of over 1,400 people. Additionally, Tropical Depression Grace arrived and hampered rescue efforts. Plus, the asteroid Phaethon is outgassing sodium, studying Mars’ moons in the search for life, and how dust storms helped dry out Mars.

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Evidence for Icy Crust Found at Ceres’ Occator Crater

Evidence for Icy Crust Found at Ceres’ Occator Crater

Using a neutron spectrometer on board the Dawn spacecraft, scientists have found elevated concentrations of hydrogen in Ceres’ Occator Crater, which provides evidence of an icy crust. Plus, everything is on fire in the western United States, and we review “The Past is Red” by Catherynne M. Valente.

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NASA’s OSIRIS-REx Finds Bennu Collision Risk Nearly Nonexistent

NASA’s OSIRIS-REx Finds Bennu Collision Risk Nearly Nonexistent

After careful analysis of orbital data, gravitational forces, and several other factors, NASA’s OSIRIS-REx team calculated the risk of a collision with near-Earth asteroid Bennu to be 0.057% through 2300. Plus, magnetites in meteorites reveal solar system history, and the constellation Ophiuchus is What’s Up.

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Rocket Roundup for August 11th, 2021

Rocket Roundup for August 11th, 2021

On this week’s Rocket Roundup, China launches two different rockets and an ISS resupply brings new technology and also student involvement. Plus, this week in rocket history, we look back at the impact of the Landsat program on monitoring Earth’s climate.

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Chandra X-ray Observatory Captures Light Echoes Around Black Hole

Chandra X-ray Observatory Captures Light Echoes Around Black Hole

Based on X-ray detections from the Neil Gehrels Swift Observatory, scientists used the Chandra X-ray Observatory and found rings called light echoes moving out from a black hole and its companion star, reflecting off the surrounding dust clouds. Plus, solving the puzzle of the Sun and using glassy nodules to find a meteorite impact.

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NASA’s TESS Maps Symphony of Pulsating Red Giant Stars

NASA’s TESS Maps Symphony of Pulsating Red Giant Stars

NASA’s TESS spacecraft, which is primarily used to search for exoplanets, has now observed a veritable symphony of pulsating red giant stars, each with its own internal vibrations. This work was presented at this week’s TESS Science Conference. Plus, some more climate change news (bad) and superflares may be less harmful to exoplanets than thought (good).

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