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Space Astronomy

All articles tagged with #space astronomy

Venus’s 6,000-km Wave Explained by the Solar System’s Largest Hydraulic Jump
space-astronomy21 days ago

Venus’s 6,000-km Wave Explained by the Solar System’s Largest Hydraulic Jump

Researchers show Venus’s colossal 6,000-km atmospheric wave results from the solar system’s largest hydraulic jump: when eastward lower-cloud flows slow abruptly, a strong vertical updraft lifts sulfuric acid vapor and creates a massive cloud disturbance that may help sustain Venus’s superrotation. The finding, based on advanced fluid-dynamics simulations and microphysical modeling, explains why previous Earth-centric models missed the phenomenon and outlines steps to incorporate this mechanism into broader Venus climate models, with potential implications for future Mars research.

via The Daily Galaxy|
#akatsuki#atmospheric-waves#hydraulic-jump
NASA's Roman Space Telescope Heads Toward Launch, Promising Wide-Field Skies
science1 month ago

NASA's Roman Space Telescope Heads Toward Launch, Promising Wide-Field Skies

NASA’s Nancy Grace Roman Space Telescope is finishing final tests at Goddard and is set to ship to Kennedy Space Center for a Falcon Heavy launch as early as this fall; designed for a wide-field infrared view, it will conduct three core surveys and complement JWST by mapping large sky areas, with robotic refueling planned for a 5–10 year mission and operations run from Goddard.

via WTOP|
#jwst#nasa#roman-space-telescope
Jellyfish Nebula in Gemini Resembles a Brain in Brilliant Space Photo
space-astronomy2 months ago

Jellyfish Nebula in Gemini Resembles a Brain in Brilliant Space Photo

Space.com reports astrophotographer Ogetay Kayali captured IC 443—the Jellyfish Nebula—a 5,000‑light‑year‑old supernova remnant in Gemini near Propus. The image highlights the glowing hydrogen shell and intricate interstellar filaments, with a pulsar remaining from the explosion. Kayali notes the composition can resemble both a jellyfish and a brain, illustrating the remnant’s striking shell and its environment.

via Space|
#gemini#ic-443#jellyfish-nebula
Blood Moon Viewing Outlook: Will the U.S. See March 3's Total Lunar Eclipse Clear?
space-astronomy2 months ago

Blood Moon Viewing Outlook: Will the U.S. See March 3's Total Lunar Eclipse Clear?

Space.com reports that the March 3, 2026 total lunar eclipse will be visible across much of the U.S. but sky conditions will vary. Best viewing prospects are in southeast New England, the Florida peninsula, the northern Rockies, Southwest deserts, Nevada, and much of California, while central and eastern states face cloudier conditions due to a stationary front and associated unsettled weather. Areas like Utah, Wyoming, Colorado, and parts of the Northern Plains to the Upper Midwest may see light rain or snow; a marine layer could also hide the Moon along the Pacific Northwest. In New York, New Jersey, Pennsylvania, and New England, clouds could move in late, potentially obscuring the eclipse depending on how fast they roll in. Totality begins at 6:03 a.m. ET and lasts 58 minutes. NOAA's sky-cover map provides a three-tier outlook (GOOD, FAIR, POOR) to help plan viewing, and local NWS updates or GOES imagery are recommended. If you miss it, the next total lunar eclipse over the U.S. won't occur until 2029, though livestreams are available for clouded-out observers.

via Space|
#blood-moon#cloud-cover-forecast#eclipse-viewing-us
Six February science gems you almost missed, from smart underwear to brainy Doom
science2 months ago

Six February science gems you almost missed, from smart underwear to brainy Doom

A six-story science roundup highlights Edison’s revived nickel‑iron battery for rapid recharge (but lower energy density), a star in Andromeda that collapsed directly into a black hole without a supernova, a snap-on ‘smart underwear’ sensor that tracks daily fart frequency, simulations explaining how Kuiper Belt contact binaries form, AI-assisted work proposing a possible ancient Roman board game called Ludos Coriovalli, and DishBrain’s neurons learning to play Doom with a Python-friendly interface.

via Ars Technica|
#battery-technology#energy-storage#neuroscience