* Astronomy

SpaceX delays launch for classified U.S. gov't payload U.S. space firm SpaceX has pushed back its first launch of a U.S military satellite after a "sensor issue" with the rocket triggered a 24-hour delay on Sunday. Liftoff, which is now targeted on Monday between 7 and 9 a.m. EDT (1100 and 1300 GMT) fr...

ATel 10336: Spectroscopic Classification of SN 2017dkb (=PTSS-17slg) as a Type IIP Supernova

48 Persei (also known as c Persei, 48 Per, HR 1273, HIP 19343, or HD 25940) is a Be star in the constellation Perseus, Read more

The eastern limb The western limb with sunspot 12297 Images captured with a 100mm f5 Helios refractor and vesta pro webcam. Motorised EQ1 Mount and Baader solar filter. Prime focus. Hazy sky between broken cloud

6 panel photomosaic captured with a 100mm f5 Helios refractor and Vesta pro webcam.

Reprocessed image of sunspots 12653 and 12652 (on western limb) captured with a 100mm f5 Helios refractor and Vesta pro webcam.

ATel 10333: Spectroscopic classification of AT 2017dit and 2017dei as a normal Type Ia supernovae

World's closest glacier to a city continues to shrink The world's closest glacier to a city shrank quickly in the past year and may completely vanish in half a century, according to a Chinese scientist Saturday. In the last 12 months, the east and west stretches of Glacier No. 1 in the Tianshan Mountai...

Title: Core-shift and spectral analysis of the 2006 radio flare in CTA102 Authors: C. M. Fromm, E. Ros, M. Perucho, T. Savolainen, P. Mimica, A. P. Lobanov, J. A. Zensus The 2006 radio flare in the blazar CTA102 is the largest ever reported for this source. The analysis of the single--dish light curve...

A total solar eclipse occurred on 30 April 1688 with the path of totality passing over India, China, Siberia and Canada. On April 30, 1688, King Narai had his first chance to observe an eclipse of the sun at Lopburi, but it would also be his last. Read more

Highlights From a very dark location at that time, look for the Zodiacal Light, a huge soft glowing column of light in the western horizon. It is the light of the Sun reflected off dust particles in the inner solar system. Its axis closely coincides with the ecliptic. The Lyrids On April 22 (16-2...

Shell starts preparatory drilling for offshore oil well off Alaska Royal Dutch Shell has begun preparatory drilling for an offshore oil well in the Arctic, the oil company announced Sunday, the first step in a long-controversial project. U.S. authorities granted Shell permission to begin work o...

Citizen scientists leave their mark For 75 years the Cincinnati Dry Dredgers have helped UC geology students and faculty learn more about the fossils that make the area famous. The group, which has deep ties to UC, celebrates its diamond jubilee this month, marking 75 years of fossil collection, an...

A number of signals involving charged cosmic rays and high-energy photons have been interpreted as being due to annihilating Dark Matter. This article provides an overview of the experimental evidence and di... >

NGC 7250 (also IRAS 22161+4018, MCG 7-45-24, UGC 11980 and PGC 68535) is a magnitude +12.6 spiral galaxy located 53 million light-years away in the constellation Lacerta. The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflecto...