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 6月9日晚上,天空中两颗明亮的行星——金星与木星将要相合。 这是今年二者唯一的一次相合,是同时观测二者的最佳时机, 此后金星便逐渐远离木星。 相合时金星亮度约-4等,木星亮度约-1.9等。二者在天空中的角距仅约1.5度,且在日落1小时后仍有15度的高度,无论是哪方面讲, 都非常值得留心一看。 山東天文學會

  Twitter On the night of 8 January 2026, Russian forces launched an Oreshnik missile from Kapustin Yar test site that struck the city of Lviv, the first time Lviv Oblast was hit by a ballistic missile. The Ukrainian Air Force stated that the attack was combined with a wider drone and missile strike. Later, the Russian Ministry of Defense confirmed the Oreshnik strike on the Lviv State Aviation Repair Plant. On 24 May 2026, Russia fired a Oreshnik missile from Kapustin Yar during a large overnight attack on Ukraine, combined with 600 drones and 90 other missiles. According to experts, many components were manufactured no later than 2016–2017, including Russian and Belarusian elements (from the Integral plant in Belarus). One of the units even bears a clear 2017 production date. Despite Russian propaganda presenting the “Oreshnik” as a cutting-edge weapon, it is largely assembled from older parts. Foreign components from China, the USA, Japan, Germany, and Switzerland were also disc...

 For seestar S50, if under bortle 3 skies ( eg XinLong): For Seestar spec: Using sharpcap tool Sky Electron Rate = 0.12 e/pixel/s Reference: FB IMX462 readout noise from ZWO CN

  faster variants powered by jet engines known as the Geran-3, Geran-4, and Geran-5. The Geran-3 made its combat debut last year. On Monday, Ukraine's military intelligence agency, the GUR, said Russia had started using the newer Geran-4 in attacks this month "as a countermeasure against the effectiveness of our interceptor" drones. Geran-4 is powered by a Chinese-made turbojet engine and can fly as fast as 500 km/h (roughly 310 mph) and cruise at an altitude of 5,000 meters (1,640 feet), the GUR said. The drone can carry a highly explosive warhead over a distance of 450 kilometers (280 miles). According to the document, the Geran-5 is equipped with a 200 kilogram-thrust turbojet engine, which GUR identifies as being of Chinese origin. The system is reportedly capable of achieving a maximum range of 950 kilometres and a top speed of 600 km/h while retaining the Geran-2’s 90 kg payload. Another jet-powered variant, the Geran-4, reportedly is also under development. Compare...

  Spaceflightnow   Target to launch in June Official website   Link will first integrate with the Pegasus rocket at NASA’s Wallops Flight Facility in Virginia early in the month and then the company’s L-1011 aircraft will deploy the spacecraft from the Marshall Islands later in the month. Skyrocket de

From 台灣地震預測研究所  Dyson Lin 林湧森  宜蘭站： Patreon Twitter Quakeforecast FB Buzzorange 據自由時報 報導 ，在 1 周前(2018 2月6），氣象局第一次針對在臉書引述氣象局地磁資料預測地震的林湧森，去函警告要求相關言論下架，如果沒有改善，將針對氣象法規處以 20 萬至 100 萬的罰款。 據氣象局地震測報中心代理主任陳國昌的說法，這次是因林湧森引述氣象局地磁資料，但這筆資料是氣象局用來研究地震前兆的資料，只能給學者使用，不知為何林湧森拿來任意預測判斷，違反氣象法。至於王明仁，陳國昌主任則是說他「沒有任何科學佐證，未達到開罰要件。」 對此，林湧森對氣象局表示「放馬過來」，說自己 4、5 年前曾準確預言地震，正因自己預測準確，氣象局才跳腳。據報導，他是「無心插柳」從植物身上發現地震可預測，目前他在全球有 20 多個觀測站進行地震預測分析。而王明仁則說，氣象局對他的批評有失公允，強調自己研發科學儀器預測地震，「氣象局的批評，是沒有能力預測的人否定會預測的人」。 What are science behind? Or pseudo science?

 民國初年（1939） 直至1949年 北京時間，還是烏魯木齊時間的火車票 OurChinahistory   Chl cn

Sciencealert In Antarctica, scientists led by nuclear astrophysicist Dominik Koll of the Helmholtz-Zentrum Dresden-Rossendorf in Germany, found rare iron-60 frozen in ice cores dating back to between 40,000 and 81,000 years ago. These results suggest that the Local Interstellar Cloud is a cosmic archive for supernova-produced iron-60. Technews tw

 From hypernova From stargazerslounge eyeswideopen5 flickr

 From Nature Nov 2025  sustainability  The rapidly increasing demand for generative artificial intelligence (AI) models requires extensive server installation with sustainability implications in terms of the compound energy–water–climate impacts. Here we show that the deployment of AI servers across the United States could generate an annual water footprint ranging from 731 to 1,125 million m3 and additional annual carbon emissions from 24 to 44 Mt CO2-equivalent between 2024 and 2030, depending on the scale of expansion. Other factors, such as industry efficiency initiatives, grid decarbonization rates and the spatial distribution of server locations within the United States, drive deep uncertainties in the estimated water and carbon footprints. We show that the AI server industry is unlikely to meet its net-zero aspirations by 2030 without substantial reliance on highly uncertain carbon offset and water restoration mechanisms. Although best practices may reduce emission...

宋代十二種美学 雅、淡、寂、静、柔、和、婉、麗、秀、深、奇、簡。 這些特點體現在宋代的繪畫，建築，陶瓷等藝術形式中。 Zhihu  

  Weibo

 四合一 Hopper Drill and other scientific instruments  嫦娥七號的「著巡飛組合」抵達月球南極後，巡視器、飛躍器將展開各種探測和找水工作。媒體報道認為，中國有望成為首個在月球找到水的國家。 　　資料顯示，嫦娥七號的軌道器、着陸器和巡視器，能持續工作8年，飛躍器則預計工作6個月。剛才提到飛躍器是找水的「撒手鐧」，所以好消息或不用太久便能傳來。 ILO-C telescope from HKU 10/4/2026 探測器已運抵文昌 cctv 24/4 cctv13   update Launch date Aug 2026 ( 8 Aug is major standstill) Weibo Headlines talk

Bilibili Most welcome  Now called as HAC125DX

Using "ring and tube" design Hyperbolic lightweight mirror 

700mm f/8 RC Officina Stellare LaClefdesetoiles The New Era: 0.7m Robotic Observatory On March 1, 2026, the historic 0.5m DFM telescope was decommissioned to make way for the next genera tion of astronomical tools. The Facility: 0.7m Officina Stellare Ritchey-Chrétien Reflector. The Technology: A fully robotic and remote-controllable system.

 Now in prototype phase 22KG Price 2x,xxx USD

  Hard water for good coffee?