［Stars Go Boom スターズ・ゴー・ブーム］ Stephen Smith March 7, 2014Picture of the Day Composite wide-field infrared image, with SN1572 (Tycho Supernova Remnant) upper left. Blue and cyan indicate infrared wavelengths of 3.4 and 4.6 micron…

［Astral Forge アストラル・フォージ］ Stephen Smith March 9, 2014Picture of the Day Part of the nebula, NGC 7538 in the constellation Cepheus. 星雲の一部、ケフェウス座のNGC7538。 ―――――――― Mar 10, 2014 恒星達はガスと塵の冷たい雲の中で生まれ…

［Mercury Update マーキュリー（水星）・アップデート］ Stephen Smith March 11, 2014Picture of the Day New image of Mercury using three image filters: 996 nanometers (red), 748 nanometers (green), and 433 nanometers (blue). 3つの画像フィルタ…

［Star Pinch スター・ピンチ（恒星の結節）］ Stephen Smith November 16, 2020Picture of the Day An optical image, from the Digitized Sky Survey, of a large field centered on the Flame Nebula. Note the z-pinch at the center of the image. 炎の…