ダークマターの記事

Being essentially empty, outer space allows the earliest (redder) galaxies to be viewed without obstruction, as in the Webb's First Deep Field image.

宇宙空間の正体真空の環境から法的境界まで

宇宙空間真空カーマンライン宇宙条約

2026年8月11日続きを読む →

The Star-Spectroscope of the Lick Observatory in 1898. Designed by James Keeler and constructed by John Brashear.

天体分光法光のスペクトルで読み解く宇宙の正体

天体分光法スペクトル分析ドップラーシフト赤方偏移

2026年8月11日続きを読む →

In this schematic diagram, time passes from left to right, with the universe represented by a disk-shaped "slice" at any given time. Time and size are not to scale. To make the early stages visible, the time to the afterglow stage (really the first 0.003%) is stretched and the subsequent expansion (really by 1,100 times to the present) is largely suppressed.

宇宙の構造と進化ビッグバンからダークエネルギーまで

宇宙ビッグバンダークマターダークエネルギー

2026年8月11日続きを読む →

Observable Universe as a function of time and distance, in context of the expanding Universe

観測可能な宇宙の規模と構造私たちが捉えられる世界の限界

観測可能な宇宙宇宙論宇宙の大きさダークエネルギー

2026年8月11日続きを読む →

An old diagram showing the location of the Local Group, including the Solar System, within the Virgo Supercluster, revealing its location at the supercluster's outskirts with the Virgo Cluster forming its heart.[2] The Fornax Cluster shown at the left was later revealed to be a separated part of the Southern Supercluster. Both superclusters are part of the greater Laniakea Supercluster cocoon (see below).

おとめ座超銀河団私たちの銀河系が属する宇宙の巨大構造

おとめ座超銀河団局所超銀河団ラニアケア超銀河団局所群

2026年8月11日続きを読む →

Artist's impression of the structure of the Milky Way based on data from the European Space Agency's Gaia telescope, including the location of the spiral arms, bar, and bulge

天の川銀河の構造と謎私たちの故郷である巨大渦巻銀河の全貌

天の川銀河銀河系渦巻銀河ダークマター

2026年8月11日続きを読む →

Mesh map of the inner Gould Belt created from Gaia observatory data

ガルドベルト天の川銀河に浮かぶ若き星々のリング

ガルドベルト天の川銀河オリオン腕星形成領域

2026年8月11日続きを読む →

$Except for the few stars in the foreground (which are bright and easily recognizable because only they have diffraction spikes), every speck of light in the composite photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 2 trillion galaxies.[1] From the Hubble eXtreme Deep Field.$