宇宙天気とは - 太陽活動と地球環境への影響

MAVEN May Be Lost Around Mars

NASA engineers are racing to re-establish contact with the MAVEN orbiter after it failed to reconnect following a routine pass behind Mars on 6 December 2025; partial tracking dat… 12月 16, 2025

Space

Giant Sunspot Faces Earth — Carrington‑scale Fears Revisited

A vast sunspot complex comparable in size to the active region that preceded the 1859 Carrington Event has appeared on the Sun and is pointed toward Earth, raising questions about… 12月 05, 2025

Space

NASA Alert: X‑Class Solar Flares Threaten Infrastructure

NASA and space‑weather forecasters have detected multiple X‑class solar flares during the current solar maximum; intense eruptions can disrupt radio, navigation and power grids an… 12月 02, 2025

Space

Stealth Solar Storm Hits Earth Unexpectedly

A faint, hard-to-detect coronal mass ejection swept past Earth on November 20, 2025, nudging the magnetosphere and producing mid-latitude auroras despite leaving little warning. T… 11月 21, 2025

宇宙天気

Articles about 宇宙天気

MAVEN May Be Lost Around Mars

Giant Sunspot Faces Earth — Carrington‑scale Fears Revisited

NASA Alert: X‑Class Solar Flares Threaten Infrastructure

Stealth Solar Storm Hits Earth Unexpectedly