Local Bubble Archives

Equatorial cuts from MHD simulations (Opher et al., 2024, 2024, accepted) showing the compression of the heliosphere by interstellar clouds with densities of a) 3000 cm−3 and b) 900 cm−3 , where the color contours show neutral hydrogen density. These events may have occurred 2 and 7 Myr ago as our solar system collided with the LxCC and the edge of the Local Bubble, respectively. The red circle shows Earth’s orbit. One can see that Earth experiences densities up to 6000 cm−3 in case (a) and 1500 cm−3 in case (b). -- astro-ph.EP

Astrochemistry, Atmospheres, Climate, Weather, Interstellar, Space Weather & Heliophysics, Status Report

Earth’s Mesosphere During Possible Encounters With Massive Interstellar Clouds 2 and 7 Million Years Ago

by Keith CowingSeptember 12, 2024September 12, 2024

Our solar system’s path has recently been shown to potentially intersect dense interstellar clouds 2 and 7 million years ago: the Local Lynx of Cold Cloud and the edge of […]

Local Bubble

Earth’s Mesosphere During Possible Encounters With Massive Interstellar Clouds 2 and 7 Million Years Ago

Training For Astrobiology Spelunking On Mars

Mars Perseverance Rover’s Panoramic View of Broom Point

Planets Orbiting Barnard’s Star Seem To Be Small, Strange, And Utterly Uninhabitable

Experimental Astrochemistry And Machine Learning Unravel The Formation Of Oxygen-bearing Organic Molecules In Extraterrestrial Ices

Bacteria Form Herds To Survive Predators, Offering Fresh Insight Into Earth’s Carbon Cycle